TSK-991 after initial refactoring

history/taskana-simplehistory-provider/src/main/java/pro/taskana/simplehistory/impl/HistoryQueryImpl.java

@@ -6,8 +6,8 @@ import java.util.List;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.TimeInterval;
-import pro.taskana.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.TimeInterval;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
 import pro.taskana.simplehistory.impl.mappings.HistoryQueryMapper;
 import pro.taskana.simplehistory.query.HistoryQuery;
 import pro.taskana.simplehistory.query.HistoryQueryColumnName;

history/taskana-simplehistory-provider/src/main/java/pro/taskana/simplehistory/impl/SimpleHistoryServiceImpl.java

@@ -5,7 +5,7 @@ import java.time.Instant;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.configuration.TaskanaEngineConfiguration;
+import pro.taskana.TaskanaEngineConfiguration;
 import pro.taskana.history.api.TaskanaHistory;
 import pro.taskana.history.api.TaskanaHistoryEvent;
 import pro.taskana.simplehistory.impl.mappings.HistoryEventMapper;

history/taskana-simplehistory-provider/src/main/java/pro/taskana/simplehistory/impl/TaskanaHistoryEngineImpl.java

@@ -13,7 +13,7 @@ import org.apache.ibatis.transaction.TransactionFactory;
 import org.apache.ibatis.transaction.jdbc.JdbcTransactionFactory;
 import org.apache.ibatis.transaction.managed.ManagedTransactionFactory;
 
-import pro.taskana.configuration.TaskanaEngineConfiguration;
+import pro.taskana.TaskanaEngineConfiguration;
 import pro.taskana.history.api.TaskanaHistory;
 import pro.taskana.simplehistory.TaskanaHistoryEngine;
 import pro.taskana.simplehistory.configuration.DbSchemaCreator;

history/taskana-simplehistory-provider/src/main/java/pro/taskana/simplehistory/query/HistoryQuery.java

@@ -1,8 +1,8 @@
 package pro.taskana.simplehistory.query;
 
-import pro.taskana.BaseQuery;
-import pro.taskana.TimeInterval;
-import pro.taskana.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.BaseQuery;
+import pro.taskana.common.api.TimeInterval;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
 import pro.taskana.simplehistory.impl.HistoryEventImpl;
 
 /** HistoryQuery for generating dynamic sql. */

history/taskana-simplehistory-provider/src/main/java/pro/taskana/simplehistory/query/HistoryQueryColumnName.java

@@ -1,6 +1,6 @@
 package pro.taskana.simplehistory.query;
 
-import pro.taskana.QueryColumnName;
+import pro.taskana.common.api.QueryColumnName;
 
 /**
  * Enum containing the column names for {@link

history/taskana-simplehistory-provider/src/test/java/acceptance/AbstractAccTest.java

@@ -15,7 +15,7 @@ import org.junit.BeforeClass;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.configuration.TaskanaEngineConfiguration;
+import pro.taskana.TaskanaEngineConfiguration;
 import pro.taskana.simplehistory.impl.HistoryEventImpl;
 import pro.taskana.simplehistory.impl.SimpleHistoryServiceImpl;
 

history/taskana-simplehistory-provider/src/test/java/acceptance/query/QueryHistoryAccTest.java

@@ -10,8 +10,8 @@ import java.time.Instant;
 import java.util.List;
 import org.junit.Test;
 
-import pro.taskana.BaseQuery.SortDirection;
-import pro.taskana.TimeInterval;
+import pro.taskana.common.api.BaseQuery.SortDirection;
+import pro.taskana.common.api.TimeInterval;
 import pro.taskana.simplehistory.impl.HistoryEventImpl;
 import pro.taskana.simplehistory.query.HistoryQuery;
 import pro.taskana.simplehistory.query.HistoryQueryColumnName;

history/taskana-simplehistory-provider/src/test/java/configuration/TaskanaEngineConfigurationTest.java

@@ -8,8 +8,8 @@ import javax.sql.DataSource;
 import org.junit.Assert;
 import org.junit.Test;
 
-import pro.taskana.TaskanaEngine;
-import pro.taskana.configuration.TaskanaEngineConfiguration;
+import pro.taskana.common.api.TaskanaEngine;
+import pro.taskana.TaskanaEngineConfiguration;
 
 /**
  * Unit Test for TaskanaEngineConfigurationTest.

history/taskana-simplehistory-provider/src/test/java/pro/taskana/simplehistory/impl/HistoryQueryImplTest.java

@@ -15,7 +15,7 @@ import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnitRunner;
 
-import pro.taskana.TimeInterval;
+import pro.taskana.common.api.TimeInterval;
 import pro.taskana.simplehistory.impl.mappings.HistoryQueryMapper;
 
 /**

history/taskana-simplehistory-provider/src/test/java/pro/taskana/simplehistory/impl/SimpleHistoryServiceImplTest.java

@@ -25,7 +25,7 @@ import org.powermock.core.classloader.annotations.PowerMockIgnore;
 import org.powermock.core.classloader.annotations.PrepareForTest;
 import org.powermock.modules.junit4.PowerMockRunner;
 
-import pro.taskana.configuration.TaskanaEngineConfiguration;
+import pro.taskana.TaskanaEngineConfiguration;
 import pro.taskana.simplehistory.impl.mappings.HistoryEventMapper;
 import pro.taskana.simplehistory.impl.mappings.HistoryQueryMapper;
 

history/taskana-simplehistory-rest-spring/src/main/java/pro/taskana/rest/simplehistory/TaskHistoryEventController.java

@@ -16,11 +16,11 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
-import pro.taskana.BaseQuery;
-import pro.taskana.TimeInterval;
-import pro.taskana.configuration.TaskanaEngineConfiguration;
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.impl.util.LoggerUtils;
+import pro.taskana.common.api.BaseQuery;
+import pro.taskana.common.api.TimeInterval;
+import pro.taskana.TaskanaEngineConfiguration;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.internal.util.LoggerUtils;
 import pro.taskana.rest.AbstractPagingController;
 import pro.taskana.rest.resource.PagedResources.PageMetadata;
 import pro.taskana.rest.resource.TaskHistoryEventListAssembler;

history/taskana-simplehistory-rest-spring/src/main/java/pro/taskana/rest/simplehistory/sampledata/SampleDataGenerator.java

@@ -13,7 +13,7 @@ import org.apache.ibatis.jdbc.ScriptRunner;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.configuration.DB;
+import pro.taskana.common.internal.configuration.DB;
 
 /** This class generates sample data for manual testing purposes. */
 public class SampleDataGenerator {

history/taskana-simplehistory-spring-test/src/test/java/pro/taskana/TaskHistoryEventControllerIntTest.java

@@ -35,7 +35,7 @@ import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.web.client.HttpClientErrorException;
 import org.springframework.web.client.RestTemplate;
 
-import pro.taskana.exceptions.SystemException;
+import pro.taskana.common.api.exceptions.SystemException;
 import pro.taskana.rest.resource.TaskHistoryEventListResource;
 import pro.taskana.rest.simplehistory.TaskHistoryRestConfiguration;
 import pro.taskana.rest.simplehistory.sampledata.SampleDataGenerator;

lib/taskana-cdi-example/src/main/java/pro/taskana/ExampleBootstrap.java

@@ -6,14 +6,16 @@ import javax.enterprise.context.ApplicationScoped;
 import javax.enterprise.context.Initialized;
 import javax.enterprise.event.Observes;
 
-import pro.taskana.exceptions.ClassificationNotFoundException;
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.InvalidOwnerException;
-import pro.taskana.exceptions.InvalidStateException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.exceptions.TaskAlreadyExistException;
-import pro.taskana.exceptions.TaskNotFoundException;
-import pro.taskana.exceptions.WorkbasketNotFoundException;
+import pro.taskana.classification.api.exceptions.ClassificationNotFoundException;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.InvalidOwnerException;
+import pro.taskana.common.api.exceptions.InvalidStateException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.task.api.exceptions.TaskAlreadyExistException;
+import pro.taskana.task.api.exceptions.TaskNotFoundException;
+import pro.taskana.workbasket.api.exceptions.WorkbasketNotFoundException;
+import pro.taskana.task.api.ObjectReference;
+import pro.taskana.task.api.Task;
 
 /** Example Bootstrap Application. */
 @ApplicationScoped

lib/taskana-cdi-example/src/main/java/pro/taskana/TaskanaEjb.java

@@ -3,6 +3,8 @@ package pro.taskana;
 import javax.ejb.Stateless;
 import javax.inject.Inject;
 
+import pro.taskana.task.api.TaskService;
+
 /** example Taskana EJB. */
 @Stateless
 public class TaskanaEjb {

lib/taskana-cdi/src/main/java/pro/taskana/TaskanaProducers.java

@@ -17,7 +17,10 @@ import javax.sql.DataSource;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.configuration.TaskanaEngineConfiguration;
+import pro.taskana.classification.api.ClassificationService;
+import pro.taskana.common.api.TaskanaEngine;
+import pro.taskana.task.api.TaskService;
+import pro.taskana.workbasket.api.WorkbasketService;
 
 /** TODO. */
 @ApplicationScoped

lib/taskana-cdi/src/test/java/pro/taskana/TaskanaEjb.java

@@ -3,11 +3,16 @@ package pro.taskana;
 import javax.ejb.Stateless;
 import javax.inject.Inject;
 
-import pro.taskana.exceptions.ClassificationNotFoundException;
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.exceptions.TaskAlreadyExistException;
-import pro.taskana.exceptions.WorkbasketNotFoundException;
+import pro.taskana.classification.api.ClassificationService;
+import pro.taskana.classification.api.exceptions.ClassificationNotFoundException;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.task.api.exceptions.TaskAlreadyExistException;
+import pro.taskana.workbasket.api.exceptions.WorkbasketNotFoundException;
+import pro.taskana.task.api.ObjectReference;
+import pro.taskana.task.api.Task;
+import pro.taskana.task.api.TaskService;
+import pro.taskana.workbasket.api.WorkbasketService;
 
 /** TODO. */
 @Stateless

lib/taskana-cdi/src/test/java/pro/taskana/TaskanaRestTest.java

@@ -11,18 +11,24 @@ import javax.ws.rs.core.Response;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.exceptions.ClassificationAlreadyExistException;
-import pro.taskana.exceptions.ClassificationNotFoundException;
-import pro.taskana.exceptions.DomainNotFoundException;
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.InvalidOwnerException;
-import pro.taskana.exceptions.InvalidStateException;
-import pro.taskana.exceptions.InvalidWorkbasketException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.exceptions.TaskAlreadyExistException;
-import pro.taskana.exceptions.TaskNotFoundException;
-import pro.taskana.exceptions.WorkbasketAlreadyExistException;
-import pro.taskana.exceptions.WorkbasketNotFoundException;
+import pro.taskana.classification.api.Classification;
+import pro.taskana.classification.api.ClassificationService;
+import pro.taskana.classification.api.exceptions.ClassificationAlreadyExistException;
+import pro.taskana.classification.api.exceptions.ClassificationNotFoundException;
+import pro.taskana.common.api.exceptions.DomainNotFoundException;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.InvalidOwnerException;
+import pro.taskana.common.api.exceptions.InvalidStateException;
+import pro.taskana.workbasket.api.exceptions.InvalidWorkbasketException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.task.api.exceptions.TaskAlreadyExistException;
+import pro.taskana.task.api.exceptions.TaskNotFoundException;
+import pro.taskana.workbasket.api.exceptions.WorkbasketAlreadyExistException;
+import pro.taskana.workbasket.api.exceptions.WorkbasketNotFoundException;
+import pro.taskana.task.api.ObjectReference;
+import pro.taskana.task.api.Task;
+import pro.taskana.workbasket.api.Workbasket;
+import pro.taskana.workbasket.api.WorkbasketType;
 
 /** TODO. */
 @Path("/test")

lib/taskana-core/src/main/java/pro/taskana/TaskanaEngineConfiguration.java

@@ -1,4 +1,4 @@
-package pro.taskana.configuration;
+package pro.taskana;
 
 import java.io.File;
 import java.io.FileInputStream;
@@ -27,11 +27,13 @@ import org.apache.ibatis.datasource.pooled.PooledDataSource;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.TaskanaEngine;
-import pro.taskana.TaskanaRole;
-import pro.taskana.exceptions.SystemException;
-import pro.taskana.impl.TaskanaEngineImpl;
-import pro.taskana.impl.util.LoggerUtils;
+import pro.taskana.common.api.TaskanaEngine;
+import pro.taskana.common.api.exceptions.SystemException;
+import pro.taskana.common.internal.TaskanaEngineImpl;
+import pro.taskana.common.internal.configuration.DB;
+import pro.taskana.common.internal.configuration.DbSchemaCreator;
+import pro.taskana.common.internal.util.LoggerUtils;
+import pro.taskana.task.api.TaskanaRole;
 
 /**
  * This central class creates the TaskanaEngine and holds all the information about DB and Security.

lib/taskana-core/src/main/java/pro/taskana/classification/api/Classification.java

@@ -1,9 +1,9 @@
-package pro.taskana;
+package pro.taskana.classification.api;
 
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 import java.time.Instant;
 
-import pro.taskana.impl.ClassificationImpl;
+import pro.taskana.classification.internal.ClassificationImpl;
 
 /** Interface used to specify the Classification-Model. */
 @JsonDeserialize(as = ClassificationImpl.class)

lib/taskana-core/src/main/java/pro/taskana/classification/api/ClassificationQuery.java

@@ -1,6 +1,8 @@
-package pro.taskana;
+package pro.taskana.classification.api;
 
-import pro.taskana.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.BaseQuery;
+import pro.taskana.common.api.TimeInterval;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
 
 /** ClassificationQuery for generating dynamic sql. */
 public interface ClassificationQuery

lib/taskana-core/src/main/java/pro/taskana/classification/api/ClassificationQueryColumnName.java

@@ -1,8 +1,11 @@
-package pro.taskana;
+package pro.taskana.classification.api;
+
+import pro.taskana.common.api.QueryColumnName;
+import pro.taskana.workbasket.internal.WorkbasketQueryMapper;
 
 /**
  * Enum containing the column names for {@link
- * pro.taskana.mappings.QueryMapper#queryClassificationColumnValues}.
+ * WorkbasketQueryMapper#queryClassificationColumnValues}.
  *
  * @author jsa
  */

lib/taskana-core/src/main/java/pro/taskana/classification/api/ClassificationService.java

@@ -1,12 +1,12 @@
-package pro.taskana;
+package pro.taskana.classification.api;
 
-import pro.taskana.exceptions.ClassificationAlreadyExistException;
-import pro.taskana.exceptions.ClassificationInUseException;
-import pro.taskana.exceptions.ClassificationNotFoundException;
-import pro.taskana.exceptions.ConcurrencyException;
-import pro.taskana.exceptions.DomainNotFoundException;
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.NotAuthorizedException;
+import pro.taskana.classification.api.exceptions.ClassificationAlreadyExistException;
+import pro.taskana.classification.api.exceptions.ClassificationInUseException;
+import pro.taskana.classification.api.exceptions.ClassificationNotFoundException;
+import pro.taskana.common.api.exceptions.ConcurrencyException;
+import pro.taskana.common.api.exceptions.DomainNotFoundException;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
 
 /** This class manages the classifications. */
 public interface ClassificationService {

lib/taskana-core/src/main/java/pro/taskana/classification/api/ClassificationSummary.java

@@ -1,4 +1,4 @@
-package pro.taskana;
+package pro.taskana.classification.api;
 
 /**
  * Interface for ClassificationSummaries. This is a specific short model-object which only requieres

lib/taskana-core/src/main/java/pro/taskana/classification/api/exceptions/ClassificationAlreadyExistException.java

@@ -1,6 +1,7 @@
-package pro.taskana.exceptions;
+package pro.taskana.classification.api.exceptions;
 
-import pro.taskana.Classification;
+import pro.taskana.classification.api.Classification;
+import pro.taskana.common.api.exceptions.TaskanaException;
 
 /** Thrown, when a classification does already exits, but wanted to create with same ID+domain. */
 public class ClassificationAlreadyExistException extends TaskanaException {

lib/taskana-core/src/main/java/pro/taskana/classification/api/exceptions/ClassificationInUseException.java

@@ -1,4 +1,6 @@
-package pro.taskana.exceptions;
+package pro.taskana.classification.api.exceptions;
+
+import pro.taskana.common.api.exceptions.TaskanaException;
 
 /** Thrown if a specific task is not in the database. */
 public class ClassificationInUseException extends TaskanaException {

lib/taskana-core/src/main/java/pro/taskana/classification/api/exceptions/ClassificationNotFoundException.java

@@ -1,4 +1,6 @@
-package pro.taskana.exceptions;
+package pro.taskana.classification.api.exceptions;
+
+import pro.taskana.common.api.exceptions.NotFoundException;
 
 /** Thrown if a specific task is not in the database. */
 public class ClassificationNotFoundException extends NotFoundException {

lib/taskana-core/src/main/java/pro/taskana/classification/internal/ClassificationImpl.java

@@ -1,10 +1,10 @@
-package pro.taskana.impl;
+package pro.taskana.classification.internal;
 
 import java.time.Instant;
 import java.util.Objects;
 
-import pro.taskana.Classification;
-import pro.taskana.ClassificationSummary;
+import pro.taskana.classification.api.Classification;
+import pro.taskana.classification.api.ClassificationSummary;
 
 /** Classification entity. */
 public class ClassificationImpl extends ClassificationSummaryImpl implements Classification {
@@ -15,7 +15,7 @@ public class ClassificationImpl extends ClassificationSummaryImpl implements Cla
   private String description;
   private String applicationEntryPoint;
 
-  ClassificationImpl() {}
+  public ClassificationImpl() {}
 
   ClassificationImpl(ClassificationImpl classification) {
     this.id = classification.getId();

lib/taskana-core/src/main/java/pro/taskana/classification/internal/ClassificationMapper.java

@@ -1,4 +1,4 @@
-package pro.taskana.mappings;
+package pro.taskana.classification.internal;
 
 import org.apache.ibatis.annotations.Delete;
 import org.apache.ibatis.annotations.Insert;
@@ -8,8 +8,6 @@ import org.apache.ibatis.annotations.Results;
 import org.apache.ibatis.annotations.Select;
 import org.apache.ibatis.annotations.Update;
 
-import pro.taskana.impl.ClassificationImpl;
-
 /** This class is the mybatis mapping of classifications. */
 @SuppressWarnings({"checkstyle:LineLength", "checkstyle:Indentation"})
 public interface ClassificationMapper {

lib/taskana-core/src/main/java/pro/taskana/classification/internal/ClassificationQueryImpl.java

@@ -1,4 +1,4 @@
-package pro.taskana.impl;
+package pro.taskana.classification.internal;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -8,13 +8,14 @@ import org.apache.ibatis.session.RowBounds;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.ClassificationQuery;
-import pro.taskana.ClassificationQueryColumnName;
-import pro.taskana.ClassificationSummary;
-import pro.taskana.TimeInterval;
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.TaskanaRuntimeException;
-import pro.taskana.impl.util.LoggerUtils;
+import pro.taskana.classification.api.ClassificationQuery;
+import pro.taskana.classification.api.ClassificationQueryColumnName;
+import pro.taskana.classification.api.ClassificationSummary;
+import pro.taskana.common.api.TimeInterval;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.TaskanaRuntimeException;
+import pro.taskana.common.internal.InternalTaskanaEngine;
+import pro.taskana.common.internal.util.LoggerUtils;
 
 /**
  * Implementation of ClassificationQuery interface.

lib/taskana-core/src/main/java/pro/taskana/classification/internal/ClassificationQueryMapper.java

@@ -0,0 +1,161 @@
+package pro.taskana.classification.internal;
+
+import java.util.List;
+import org.apache.ibatis.annotations.Result;
+import org.apache.ibatis.annotations.Results;
+import org.apache.ibatis.annotations.Select;
+
+/** This class provides a mapper for all classification queries. */
+@SuppressWarnings({"checkstyle:LineLength", "checkstyle:Indentation"})
+public interface ClassificationQueryMapper {
+  @Select(
+      "<script>SELECT ID, KEY, PARENT_ID, PARENT_KEY, CATEGORY, TYPE, DOMAIN, VALID_IN_DOMAIN, CREATED, NAME, DESCRIPTION, PRIORITY, SERVICE_LEVEL, APPLICATION_ENTRY_POINT, CUSTOM_1, CUSTOM_2, CUSTOM_3, CUSTOM_4, CUSTOM_5, CUSTOM_6, CUSTOM_7, CUSTOM_8 "
+          + "FROM CLASSIFICATION "
+          + "<where>"
+          + "<if test='key != null'>AND KEY IN(<foreach item='item' collection='key' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='idIn != null'>AND ID IN(<foreach item='item' collection='idIn' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='parentId != null'>AND PARENT_ID IN(<foreach item='item' collection='parentId' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='parentKey != null'>AND PARENT_KEY IN(<foreach item='item' collection='parentKey' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='category != null'>AND CATEGORY IN(<foreach item='item' collection='category' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='type != null'>AND TYPE IN(<foreach item='item' collection='type' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='domain != null'>AND DOMAIN IN(<foreach item='item' collection='domain' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='validInDomain != null'>AND VALID_IN_DOMAIN = #{validInDomain}</if> "
+          + "<if test='createdIn !=null'> AND ( <foreach item='item' collection='createdIn' separator=' OR ' > ( <if test='item.begin!=null'> CREATED &gt;= #{item.begin} </if> <if test='item.begin!=null and item.end!=null'> AND </if><if test='item.end!=null'> CREATED &lt;=#{item.end} </if>)</foreach>)</if> "
+          + "<if test='modifiedIn !=null'> AND ( <foreach item='item' collection='modifiedIn' separator=' OR ' > ( <if test='item.begin!=null'> MODIFIED &gt;= #{item.begin} </if> <if test='item.begin!=null and item.end!=null'> AND </if><if test='item.end!=null'> MODIFIED &lt;=#{item.end} </if>)</foreach>)</if> "
+          + "<if test='nameIn != null'>AND NAME IN(<foreach item='item' collection='nameIn' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='nameLike != null'>AND (<foreach item='item' collection='nameLike' separator=' OR '>UPPER(NAME) LIKE #{item}</foreach>)</if> "
+          + "<if test='descriptionLike != null'>AND UPPER(DESCRIPTION) like #{descriptionLike}</if> "
+          + "<if test='priority != null'>AND PRIORITY IN(<foreach item='item' collection='priority' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='serviceLevelIn != null'>AND SERVICE_LEVEL IN(<foreach item='item' collection='serviceLevelIn' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='serviceLevelLike != null'>AND (<foreach item='item' collection='serviceLevelLike' separator=' OR ' >UPPER(SERVICE_LEVEL) LIKE #{item}</foreach>)</if> "
+          + "<if test='applicationEntryPointIn != null'>AND APPLICATION_ENTRY_POINT IN(<foreach item='item' collection='applicationEntryPointIn' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='applicationEntryPointLike != null'>AND (<foreach item='item' collection='applicationEntryPointLike' separator=' OR ' >UPPER(APPLICATION_ENTRY_POINT) LIKE #{item}</foreach>)</if> "
+          + "<if test='custom1In != null'>AND CUSTOM_1 IN(<foreach item='item' collection='custom1In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom1Like != null'>AND (<foreach item='item' collection='custom1Like' separator=' OR ' > UPPER(CUSTOM_1) LIKE #{item}</foreach>)</if> "
+          + "<if test='custom2In != null'>AND CUSTOM_2 IN(<foreach item='item' collection='custom2In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom2Like != null'>AND (<foreach item='item' collection='custom2Like' separator=' OR ' > UPPER(CUSTOM_2) LIKE #{item}</foreach>)</if> "
+          + "<if test='custom3In != null'>AND CUSTOM_3 IN(<foreach item='item' collection='custom3In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom3Like != null'>AND (<foreach item='item' collection='custom3Like' separator=' OR ' > UPPER(CUSTOM_3) LIKE #{item}</foreach>)</if> "
+          + "<if test='custom4In != null'>AND CUSTOM_4 IN(<foreach item='item' collection='custom4In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom4Like != null'>AND (<foreach item='item' collection='custom4Like' separator=' OR ' > UPPER(CUSTOM_4) LIKE #{item}</foreach>)</if> "
+          + "<if test='custom5In != null'>AND CUSTOM_5 IN(<foreach item='item' collection='custom5In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom5Like != null'>AND (<foreach item='item' collection='custom5Like' separator=' OR ' > UPPER(CUSTOM_5) LIKE #{item}</foreach>)</if> "
+          + "<if test='custom6In != null'>AND CUSTOM_6 IN(<foreach item='item' collection='custom6In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom6Like != null'>AND (<foreach item='item' collection='custom6Like' separator=' OR ' > UPPER(CUSTOM_6) LIKE #{item}</foreach>)</if> "
+          + "<if test='custom7In != null'>AND CUSTOM_7 IN(<foreach item='item' collection='custom7In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom7Like != null'>AND (<foreach item='item' collection='custom7Like' separator=' OR ' > UPPER(CUSTOM_7) LIKE #{item}</foreach>)</if> "
+          + "<if test='custom8In != null'>AND CUSTOM_8 IN(<foreach item='item' collection='custom8In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom8Like != null'>AND (<foreach item='item' collection='custom8Like' separator=' OR ' > UPPER(CUSTOM_8) LIKE #{item}</foreach>)</if> "
+          + "</where>"
+          + "<if test='!orderBy.isEmpty()'>ORDER BY <foreach item='item' collection='orderBy' separator=',' >${item}</foreach></if> "
+          + "<if test=\"_databaseId == 'db2'\">with UR </if> "
+          + "</script>")
+  @Results({
+    @Result(property = "id", column = "ID"),
+    @Result(property = "key", column = "KEY"),
+    @Result(property = "category", column = "CATEGORY"),
+    @Result(property = "type", column = "TYPE"),
+    @Result(property = "domain", column = "DOMAIN"),
+    @Result(property = "name", column = "NAME"),
+    @Result(property = "priority", column = "PRIORITY"),
+    @Result(property = "serviceLevel", column = "SERVICE_LEVEL"),
+    @Result(property = "parentId", column = "PARENT_ID"),
+    @Result(property = "parentKey", column = "PARENT_KEY"),
+    @Result(property = "custom1", column = "CUSTOM_1"),
+    @Result(property = "custom2", column = "CUSTOM_2"),
+    @Result(property = "custom3", column = "CUSTOM_3"),
+    @Result(property = "custom4", column = "CUSTOM_4"),
+    @Result(property = "custom5", column = "CUSTOM_5"),
+    @Result(property = "custom6", column = "CUSTOM_6"),
+    @Result(property = "custom7", column = "CUSTOM_7"),
+    @Result(property = "custom8", column = "CUSTOM_8")
+  })
+  List<ClassificationSummaryImpl> queryClassificationSummaries(
+      ClassificationQueryImpl classificationQuery);
+
+  @Select(
+      "<script>SELECT COUNT(ID) FROM CLASSIFICATION "
+          + "<where>"
+          + "<if test='key != null'>AND KEY IN(<foreach item='item' collection='key' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='idIn != null'>AND ID IN(<foreach item='item' collection='idIn' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='parentId != null'>AND PARENT_ID IN(<foreach item='item' collection='parentId' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='parentKey != null'>AND PARENT_KEY IN(<foreach item='item' collection='parentKey' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='category != null'>AND CATEGORY IN(<foreach item='item' collection='category' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='type != null'>AND TYPE IN(<foreach item='item' collection='type' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='domain != null'>AND DOMAIN IN(<foreach item='item' collection='domain' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='validInDomain != null'>AND VALID_IN_DOMAIN = #{validInDomain}</if> "
+          + "<if test='createdIn !=null'> AND ( <foreach item='item' collection='createdIn' separator=' OR ' > ( <if test='item.begin!=null'> CREATED &gt;= #{item.begin} </if> <if test='item.begin!=null and item.end!=null'> AND </if><if test='item.end!=null'> CREATED &lt;=#{item.end} </if>)</foreach>)</if> "
+          + "<if test='modifiedIn !=null'> AND ( <foreach item='item' collection='modifiedIn' separator=' OR ' > ( <if test='item.begin!=null'> MODIFIED &gt;= #{item.begin} </if> <if test='item.begin!=null and item.end!=null'> AND </if><if test='item.end!=null'> MODIFIED &lt;=#{item.end} </if>)</foreach>)</if> "
+          + "<if test='nameIn != null'>AND NAME IN(<foreach item='item' collection='nameIn' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='nameLike != null'>AND (<foreach item='item' collection='nameLike' separator=' OR '>NAME LIKE #{item}</foreach>)</if> "
+          + "<if test='descriptionLike != null'>AND DESCRIPTION like #{descriptionLike}</if> "
+          + "<if test='priority != null'>AND PRIORITY IN(<foreach item='item' collection='priority' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='serviceLevelIn != null'>AND SERVICE_LEVEL IN(<foreach item='item' collection='serviceLevelIn' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='serviceLevelLike != null'>AND (<foreach item='item' collection='serviceLevelLike' separator=' OR ' >SERVICE_LEVEL LIKE #{item}</foreach>)</if> "
+          + "<if test='applicationEntryPointIn != null'>AND APPLICATION_ENTRY_POINT IN(<foreach item='item' collection='applicationEntryPoint' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='applicationEntryPointLike != null'>AND (<foreach item='item' collection='applicationEntryPointLike' separator=' OR ' >APPLICATION_ENTRY_POINT LIKE #{item}</foreach>)</if> "
+          + "<if test='custom1In != null'>AND CUSTOM_1 IN(<foreach item='item' collection='custom1In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom1Like != null'>AND (<foreach item='item' collection='custom1Like' separator=' OR ' >CUSTOM_1 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom2In != null'>AND CUSTOM_2 IN(<foreach item='item' collection='custom2In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom2Like != null'>AND (<foreach item='item' collection='custom2Like' separator=' OR ' > CUSTOM_2 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom3In != null'>AND CUSTOM_3 IN(<foreach item='item' collection='custom3In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom3Like != null'>AND (<foreach item='item' collection='custom3Like' separator=' OR ' > CUSTOM_3 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom4In != null'>AND CUSTOM_4 IN(<foreach item='item' collection='custom4In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom4Like != null'>AND (<foreach item='item' collection='custom4Like' separator=' OR ' > CUSTOM_4 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom5In != null'>AND CUSTOM_5 IN(<foreach item='item' collection='custom5In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom5Like != null'>AND (<foreach item='item' collection='custom5Like' separator=' OR ' > CUSTOM_5 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom6In != null'>AND CUSTOM_6 IN(<foreach item='item' collection='custom6In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom6Like != null'>AND (<foreach item='item' collection='custom6Like' separator=' OR ' > CUSTOM_6 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom7In != null'>AND CUSTOM_7 IN(<foreach item='item' collection='custom7In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom7Like != null'>AND (<foreach item='item' collection='custom7Like' separator=' OR ' > CUSTOM_7 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom8In != null'>AND CUSTOM_8 IN(<foreach item='item' collection='custom8In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom8Like != null'>AND (<foreach item='item' collection='custom8Like' separator=' OR ' > CUSTOM_8 LIKE #{item}</foreach>)</if> "
+          + "</where>"
+          + "<if test=\"_databaseId == 'db2'\">with UR </if> "
+          + "</script>")
+  Long countQueryClassifications(ClassificationQueryImpl classificationQuery);
+
+  @Select(
+      "<script>SELECT DISTINCT ${columnName} "
+          + "FROM CLASSIFICATION"
+          + "<where>"
+          + "<if test='key != null'>AND KEY IN(<foreach item='item' collection='key' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='idIn != null'>AND ID IN(<foreach item='item' collection='idIn' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='parentId != null'>AND PARENT_ID IN(<foreach item='item' collection='parentId' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='parentKey != null'>AND PARENT_KEY IN(<foreach item='item' collection='parentKey' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='category != null'>AND CATEGORY IN(<foreach item='item' collection='category' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='type != null'>AND TYPE IN(<foreach item='item' collection='type' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='domain != null'>AND DOMAIN IN(<foreach item='item' collection='domain' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='validInDomain != null'>AND VALID_IN_DOMAIN = #{validInDomain}</if> "
+          + "<if test='createdIn !=null'> AND ( <foreach item='item' collection='createdIn' separator=' OR ' > ( <if test='item.begin!=null'> CREATED &gt;= #{item.begin} </if> <if test='item.begin!=null and item.end!=null'> AND </if><if test='item.end!=null'> CREATED &lt;=#{item.end} </if>)</foreach>)</if> "
+          + "<if test='modifiedIn !=null'> AND ( <foreach item='item' collection='modifiedIn' separator=' OR ' > ( <if test='item.begin!=null'> MODIFIED &gt;= #{item.begin} </if> <if test='item.begin!=null and item.end!=null'> AND </if><if test='item.end!=null'> MODIFIED &lt;=#{item.end} </if>)</foreach>)</if> "
+          + "<if test='nameIn != null'>AND NAME IN(<foreach item='item' collection='nameIn' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='nameLike != null'>AND (<foreach item='item' collection='nameLike' separator=' OR '>NAME LIKE #{item}</foreach>)</if> "
+          + "<if test='descriptionLike != null'>AND DESCRIPTION like #{descriptionLike}</if> "
+          + "<if test='priority != null'>AND PRIORITY IN(<foreach item='item' collection='priority' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='serviceLevelIn != null'>AND SERVICE_LEVEL IN(<foreach item='item' collection='serviceLevelIn' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='serviceLevelLike != null'>AND (<foreach item='item' collection='serviceLevelLike' separator=' OR ' >SERVICE_LEVEL LIKE #{item}</foreach>)</if> "
+          + "<if test='applicationEntryPointIn != null'>AND APPLICATION_ENTRY_POINT IN(<foreach item='item' collection='applicationEntryPoint' separator=',' >#{item}</foreach>)</if> "
+          + "<if test='applicationEntryPointLike != null'>AND (<foreach item='item' collection='applicationEntryPointLike' separator=' OR ' >APPLICATION_ENTRY_POINT LIKE #{item}</foreach>)</if> "
+          + "<if test='custom1In != null'>AND CUSTOM_1 IN(<foreach item='item' collection='custom1In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom1Like != null'>AND (<foreach item='item' collection='custom1Like' separator=' OR ' >CUSTOM_1 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom2In != null'>AND CUSTOM_2 IN(<foreach item='item' collection='custom2In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom2Like != null'>AND (<foreach item='item' collection='custom2Like' separator=' OR ' > CUSTOM_2 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom3In != null'>AND CUSTOM_3 IN(<foreach item='item' collection='custom3In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom3Like != null'>AND (<foreach item='item' collection='custom3Like' separator=' OR ' > CUSTOM_3 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom4In != null'>AND CUSTOM_4 IN(<foreach item='item' collection='custom4In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom4Like != null'>AND (<foreach item='item' collection='custom4Like' separator=' OR ' > CUSTOM_4 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom5In != null'>AND CUSTOM_5 IN(<foreach item='item' collection='custom5In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom5Like != null'>AND (<foreach item='item' collection='custom5Like' separator=' OR ' > CUSTOM_5 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom6In != null'>AND CUSTOM_6 IN(<foreach item='item' collection='custom6In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom6Like != null'>AND (<foreach item='item' collection='custom6Like' separator=' OR ' > CUSTOM_6 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom7In != null'>AND CUSTOM_7 IN(<foreach item='item' collection='custom7In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom7Like != null'>AND (<foreach item='item' collection='custom7Like' separator=' OR ' > CUSTOM_7 LIKE #{item}</foreach>)</if> "
+          + "<if test='custom8In != null'>AND CUSTOM_8 IN(<foreach item='item' collection='custom8In' separator=',' >#{item}</foreach>) </if> "
+          + "<if test='custom8Like != null'>AND (<foreach item='item' collection='custom8Like' separator=' OR ' > CUSTOM_8 LIKE #{item}</foreach>)</if> "
+          + "</where>"
+          + "<if test='!orderBy.isEmpty()'>ORDER BY <foreach item='item' collection='orderBy' separator=',' >${item}</foreach></if> "
+          + "<if test=\"_databaseId == 'db2'\">with UR </if> "
+          + "</script>")
+  List<String> queryClassificationColumnValues(ClassificationQueryImpl classificationQuery);
+}

lib/taskana-core/src/main/java/pro/taskana/classification/internal/ClassificationServiceImpl.java

@@ -1,4 +1,4 @@
-package pro.taskana.impl;
+package pro.taskana.classification.internal;
 
 import java.sql.SQLException;
 import java.sql.SQLIntegrityConstraintViolationException;
@@ -13,24 +13,24 @@ import org.apache.ibatis.exceptions.PersistenceException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.Classification;
-import pro.taskana.ClassificationQuery;
-import pro.taskana.ClassificationService;
-import pro.taskana.ClassificationSummary;
-import pro.taskana.TaskSummary;
-import pro.taskana.TaskanaRole;
-import pro.taskana.exceptions.ClassificationAlreadyExistException;
-import pro.taskana.exceptions.ClassificationInUseException;
-import pro.taskana.exceptions.ClassificationNotFoundException;
-import pro.taskana.exceptions.ConcurrencyException;
-import pro.taskana.exceptions.DomainNotFoundException;
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.impl.util.IdGenerator;
-import pro.taskana.jobs.ClassificationChangedJob;
-import pro.taskana.jobs.ScheduledJob;
-import pro.taskana.mappings.ClassificationMapper;
-import pro.taskana.mappings.TaskMapper;
+import pro.taskana.classification.api.Classification;
+import pro.taskana.classification.api.ClassificationQuery;
+import pro.taskana.classification.api.ClassificationService;
+import pro.taskana.classification.api.ClassificationSummary;
+import pro.taskana.classification.api.exceptions.ClassificationAlreadyExistException;
+import pro.taskana.classification.api.exceptions.ClassificationInUseException;
+import pro.taskana.classification.api.exceptions.ClassificationNotFoundException;
+import pro.taskana.common.api.exceptions.ConcurrencyException;
+import pro.taskana.common.api.exceptions.DomainNotFoundException;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.common.internal.InternalTaskanaEngine;
+import pro.taskana.common.internal.jobs.ClassificationChangedJob;
+import pro.taskana.common.internal.jobs.ScheduledJob;
+import pro.taskana.common.internal.util.IdGenerator;
+import pro.taskana.task.api.TaskSummary;
+import pro.taskana.task.api.TaskanaRole;
+import pro.taskana.task.internal.TaskMapper;
 
 /** This is the implementation of ClassificationService. */
 public class ClassificationServiceImpl implements ClassificationService {
@@ -41,7 +41,7 @@ public class ClassificationServiceImpl implements ClassificationService {
   private TaskMapper taskMapper;
   private InternalTaskanaEngine taskanaEngine;
 
-  ClassificationServiceImpl(
+  public ClassificationServiceImpl(
       InternalTaskanaEngine taskanaEngine,
       ClassificationMapper classificationMapper,
       TaskMapper taskMapper) {

lib/taskana-core/src/main/java/pro/taskana/classification/internal/ClassificationSummaryImpl.java

@@ -1,8 +1,8 @@
-package pro.taskana.impl;
+package pro.taskana.classification.internal;
 
 import java.util.Objects;
 
-import pro.taskana.ClassificationSummary;
+import pro.taskana.classification.api.ClassificationSummary;
 
 /** Implementation for the short summaries of a classification entity. */
 public class ClassificationSummaryImpl implements ClassificationSummary {
@@ -26,7 +26,7 @@ public class ClassificationSummaryImpl implements ClassificationSummary {
   protected String custom7;
   protected String custom8;
 
-  ClassificationSummaryImpl() {}
+  public ClassificationSummaryImpl() {}
 
   @Override
   public String getId() {

lib/taskana-core/src/main/java/pro/taskana/common/api/BaseQuery.java

@@ -1,4 +1,4 @@
-package pro.taskana;
+package pro.taskana.common.api;
 
 import java.util.List;
 

lib/taskana-core/src/main/java/pro/taskana/common/api/BulkOperationResults.java

@@ -1,4 +1,4 @@
-package pro.taskana;
+package pro.taskana.common.api;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -7,7 +7,7 @@ import java.util.Map;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.impl.util.LoggerUtils;
+import pro.taskana.common.internal.util.LoggerUtils;
 
 /**
  * Returning type for a bulk db interaction with errors. This wrapper is storing them with a

lib/taskana-core/src/main/java/pro/taskana/common/api/CustomField.java

@@ -1,4 +1,4 @@
-package pro.taskana;
+package pro.taskana.common.api;
 
 /** This enum contains the fields CUSTOM_1 - CUSTOM_10 for the task entity. */
 public enum CustomField {

lib/taskana-core/src/main/java/pro/taskana/common/api/JobService.java

@@ -1,6 +1,6 @@
-package pro.taskana;
+package pro.taskana.common.api;
 
-import pro.taskana.jobs.ScheduledJob;
+import pro.taskana.common.internal.jobs.ScheduledJob;
 
 /** Service to manage the TASKANA jobs. */
 public interface JobService {

lib/taskana-core/src/main/java/pro/taskana/common/api/KeyDomain.java

@@ -1,4 +1,4 @@
-package pro.taskana;
+package pro.taskana.common.api;
 
 import java.util.Objects;
 

lib/taskana-core/src/main/java/pro/taskana/common/api/QueryColumnName.java

@@ -1,4 +1,4 @@
-package pro.taskana;
+package pro.taskana.common.api;
 
 /**
  * This interface ist used to emulate an extensible enum for use in the Basequery interface.

lib/taskana-core/src/main/java/pro/taskana/common/api/TaskanaEngine.java

@@ -1,9 +1,14 @@
-package pro.taskana;
+package pro.taskana.common.api;
 
 import java.sql.SQLException;
 
-import pro.taskana.configuration.TaskanaEngineConfiguration;
-import pro.taskana.exceptions.NotAuthorizedException;
+import pro.taskana.TaskanaEngineConfiguration;
+import pro.taskana.classification.api.ClassificationService;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.report.api.TaskMonitorService;
+import pro.taskana.task.api.TaskService;
+import pro.taskana.task.api.TaskanaRole;
+import pro.taskana.workbasket.api.WorkbasketService;
 
 /** The TaskanaEngine represents an overall set of all needed services. */
 public interface TaskanaEngine {

lib/taskana-core/src/main/java/pro/taskana/common/api/TimeInterval.java

@@ -1,4 +1,4 @@
-package pro.taskana;
+package pro.taskana.common.api;
 
 import java.time.Instant;
 import java.util.Objects;

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/AttachmentPersistenceException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /**
  * Thrown, when an attachment should be inserted to the DB, but it does already exist.<br>

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/AutocommitFailedException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /** Thrown in ConnectionManagementMode AUTOCOMMIT when an attempt to commit fails. */
 public class AutocommitFailedException extends TaskanaRuntimeException {

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/ConcurrencyException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /**
  * This exception is thrown when an attempt is made to update an object that has already been

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/ConnectionNotSetException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /**
  * Thrown if ConnectionManagementMode is CONNECTION_MANAGED_EXTERNALLY and an attempt is made to

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/DomainNotFoundException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /**
  * This exception is thrown if a domain name is specified which is not found in the configuration.

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/InvalidArgumentException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /**
  * This exception is thrown when a method is called with invalid argument.

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/InvalidOwnerException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /**
  * This exception is thrown when the task state doesn't allow the requested operation.

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/InvalidStateException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /**
  * This exception is thrown when the task state doesn't allow the requested operation.

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/NotAuthorizedException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /** This exception is used to communicate a not authorized user. */
 public class NotAuthorizedException extends TaskanaException {

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/NotFoundException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /** This exception will be thrown if a specific object is not in the database. */
 public class NotFoundException extends TaskanaException {

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/SystemException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /** This exception is thrown when a generic taskana problem is encountered. */
 public class SystemException extends TaskanaRuntimeException {

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/TaskanaException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /**
  * common base class for Taskana's checked exceptions.

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/TaskanaRuntimeException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /**
  * Common base class for Taskana's runtime exceptions.

lib/taskana-core/src/main/java/pro/taskana/common/api/exceptions/UnsupportedDatabaseException.java

@@ -1,4 +1,4 @@
-package pro.taskana.exceptions;
+package pro.taskana.common.api.exceptions;
 
 /**
  * This exception will be thrown if the database name doesn't match to one of the desired databases.

lib/taskana-core/src/main/java/pro/taskana/common/internal/CustomPropertySelector.java

@@ -1,6 +1,6 @@
-package pro.taskana.mappings;
+package pro.taskana.common.internal;
 
-import pro.taskana.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
 
 /**
  * Determines which custom properties are to be updated.

lib/taskana-core/src/main/java/pro/taskana/common/internal/InternalTaskanaEngine.java

@@ -1,11 +1,11 @@
-package pro.taskana.impl;
+package pro.taskana.common.internal;
 
 import java.util.function.Supplier;
 import org.apache.ibatis.session.SqlSession;
 
-import pro.taskana.TaskanaEngine;
-import pro.taskana.history.HistoryEventProducer;
-import pro.taskana.taskrouting.TaskRoutingManager;
+import pro.taskana.common.api.TaskanaEngine;
+import pro.taskana.history.internal.HistoryEventProducer;
+import pro.taskana.task.internal.TaskRoutingManager;
 
 /**
  * FOR INTERNAL USE ONLY.

lib/taskana-core/src/main/java/pro/taskana/common/internal/JobMapper.java

@@ -1,4 +1,4 @@
-package pro.taskana.mappings;
+package pro.taskana.common.internal;
 
 import java.util.List;
 import java.util.Map;
@@ -10,8 +10,8 @@ import org.apache.ibatis.annotations.Results;
 import org.apache.ibatis.annotations.Select;
 import org.apache.ibatis.annotations.Update;
 
-import pro.taskana.impl.persistence.MapTypeHandler;
-import pro.taskana.jobs.ScheduledJob;
+import pro.taskana.common.internal.jobs.ScheduledJob;
+import pro.taskana.common.internal.persistence.MapTypeHandler;
 
 /** This class is the mybatis mapping of the JOB table. */
 @SuppressWarnings("checkstyle:LineLength")

lib/taskana-core/src/main/java/pro/taskana/common/internal/JobServiceImpl.java

@@ -1,13 +1,12 @@
-package pro.taskana.impl;
+package pro.taskana.common.internal;
 
 import java.time.Instant;
 import java.util.List;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.JobService;
-import pro.taskana.jobs.ScheduledJob;
-import pro.taskana.mappings.JobMapper;
+import pro.taskana.common.api.JobService;
+import pro.taskana.common.internal.jobs.ScheduledJob;
 
 /** Controls all job activities. */
 public class JobServiceImpl implements JobService {

lib/taskana-core/src/main/java/pro/taskana/common/internal/TaskanaEngineImpl.java

@@ -1,4 +1,4 @@
-package pro.taskana.impl;
+package pro.taskana.common.internal;
 
 import java.security.AccessController;
 import java.security.Principal;
@@ -26,37 +26,40 @@ import org.apache.ibatis.transaction.managed.ManagedTransactionFactory;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.ClassificationService;
-import pro.taskana.JobService;
-import pro.taskana.TaskMonitorService;
-import pro.taskana.TaskService;
-import pro.taskana.TaskanaEngine;
-import pro.taskana.TaskanaRole;
-import pro.taskana.WorkbasketService;
-import pro.taskana.configuration.DB;
-import pro.taskana.configuration.TaskanaEngineConfiguration;
-import pro.taskana.exceptions.AutocommitFailedException;
-import pro.taskana.exceptions.ConnectionNotSetException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.exceptions.SystemException;
-import pro.taskana.exceptions.TaskanaRuntimeException;
-import pro.taskana.history.HistoryEventProducer;
-import pro.taskana.impl.persistence.InstantTypeHandler;
-import pro.taskana.impl.persistence.MapTypeHandler;
-import pro.taskana.impl.util.LoggerUtils;
-import pro.taskana.mappings.AttachmentMapper;
-import pro.taskana.mappings.ClassificationMapper;
-import pro.taskana.mappings.DistributionTargetMapper;
-import pro.taskana.mappings.JobMapper;
-import pro.taskana.mappings.ObjectReferenceMapper;
-import pro.taskana.mappings.QueryMapper;
-import pro.taskana.mappings.TaskMapper;
-import pro.taskana.mappings.TaskMonitorMapper;
-import pro.taskana.mappings.WorkbasketAccessMapper;
-import pro.taskana.mappings.WorkbasketMapper;
-import pro.taskana.security.CurrentUserContext;
-import pro.taskana.security.GroupPrincipal;
-import pro.taskana.taskrouting.TaskRoutingManager;
+import pro.taskana.TaskanaEngineConfiguration;
+import pro.taskana.classification.api.ClassificationService;
+import pro.taskana.classification.internal.ClassificationMapper;
+import pro.taskana.classification.internal.ClassificationServiceImpl;
+import pro.taskana.common.api.JobService;
+import pro.taskana.common.api.TaskanaEngine;
+import pro.taskana.common.api.exceptions.AutocommitFailedException;
+import pro.taskana.common.api.exceptions.ConnectionNotSetException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.common.api.exceptions.SystemException;
+import pro.taskana.common.api.exceptions.TaskanaRuntimeException;
+import pro.taskana.common.internal.configuration.DB;
+import pro.taskana.common.internal.persistence.InstantTypeHandler;
+import pro.taskana.common.internal.persistence.MapTypeHandler;
+import pro.taskana.common.internal.security.CurrentUserContext;
+import pro.taskana.common.internal.security.GroupPrincipal;
+import pro.taskana.common.internal.util.LoggerUtils;
+import pro.taskana.history.internal.HistoryEventProducer;
+import pro.taskana.report.api.TaskMonitorService;
+import pro.taskana.report.internal.TaskMonitorMapper;
+import pro.taskana.report.internal.TaskMonitorServiceImpl;
+import pro.taskana.task.api.TaskService;
+import pro.taskana.task.api.TaskanaRole;
+import pro.taskana.task.internal.AttachmentMapper;
+import pro.taskana.task.internal.ObjectReferenceMapper;
+import pro.taskana.task.internal.TaskMapper;
+import pro.taskana.task.internal.TaskRoutingManager;
+import pro.taskana.task.internal.TaskServiceImpl;
+import pro.taskana.workbasket.api.WorkbasketService;
+import pro.taskana.workbasket.internal.DistributionTargetMapper;
+import pro.taskana.workbasket.internal.WorkbasketAccessMapper;
+import pro.taskana.workbasket.internal.WorkbasketMapper;
+import pro.taskana.workbasket.internal.WorkbasketQueryMapper;
+import pro.taskana.workbasket.internal.WorkbasketServiceImpl;
 
 /** This is the implementation of TaskanaEngine. */
 public class TaskanaEngineImpl implements TaskanaEngine {
@@ -251,7 +254,7 @@ public class TaskanaEngineImpl implements TaskanaEngine {
     configuration.addMapper(ClassificationMapper.class);
     configuration.addMapper(WorkbasketAccessMapper.class);
     configuration.addMapper(ObjectReferenceMapper.class);
-    configuration.addMapper(QueryMapper.class);
+    configuration.addMapper(WorkbasketQueryMapper.class);
     configuration.addMapper(AttachmentMapper.class);
     configuration.addMapper(JobMapper.class);
     SqlSessionFactory localSessionFactory = new SqlSessionFactoryBuilder().build(configuration);

lib/taskana-core/src/main/java/pro/taskana/common/internal/configuration/DB.java

@@ -1,6 +1,6 @@
-package pro.taskana.configuration;
+package pro.taskana.common.internal.configuration;
 
-import pro.taskana.exceptions.UnsupportedDatabaseException;
+import pro.taskana.common.api.exceptions.UnsupportedDatabaseException;
 
 /** Supported versions of databases. */
 public enum DB {

lib/taskana-core/src/main/java/pro/taskana/common/internal/configuration/DbSchemaCreator.java

@@ -1,4 +1,4 @@
-package pro.taskana.configuration;
+package pro.taskana.common.internal.configuration;
 
 import java.io.BufferedReader;
 import java.io.IOException;

lib/taskana-core/src/main/java/pro/taskana/common/internal/jobs/AbstractTaskanaJob.java

@@ -1,13 +1,13 @@
-package pro.taskana.jobs;
+package pro.taskana.common.internal.jobs;
 
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 
-import pro.taskana.TaskanaEngine;
-import pro.taskana.exceptions.TaskanaException;
-import pro.taskana.impl.TaskanaEngineImpl;
-import pro.taskana.transaction.TaskanaTransactionProvider;
+import pro.taskana.common.api.TaskanaEngine;
+import pro.taskana.common.api.exceptions.TaskanaException;
+import pro.taskana.common.internal.TaskanaEngineImpl;
+import pro.taskana.common.internal.transaction.TaskanaTransactionProvider;
 
 /** Abstract base for all background jobs of TASKANA. */
 public abstract class AbstractTaskanaJob implements TaskanaJob {

lib/taskana-core/src/main/java/pro/taskana/common/internal/jobs/ClassificationChangedJob.java

@@ -1,4 +1,4 @@
-package pro.taskana.jobs;
+package pro.taskana.common.internal.jobs;
 
 import java.util.HashMap;
 import java.util.List;
@@ -7,10 +7,10 @@ import java.util.Set;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.TaskanaEngine;
-import pro.taskana.exceptions.TaskanaException;
-import pro.taskana.impl.TaskServiceImpl;
-import pro.taskana.transaction.TaskanaTransactionProvider;
+import pro.taskana.common.api.TaskanaEngine;
+import pro.taskana.common.api.exceptions.TaskanaException;
+import pro.taskana.common.internal.transaction.TaskanaTransactionProvider;
+import pro.taskana.task.internal.TaskServiceImpl;
 
 /**
  * This class executes a job of type CLASSIFICATIONCHANGEDJOB.

lib/taskana-core/src/main/java/pro/taskana/common/internal/jobs/JobRunner.java

@@ -1,4 +1,4 @@
-package pro.taskana.jobs;
+package pro.taskana.common.internal.jobs;
 
 import java.net.InetAddress;
 import java.net.UnknownHostException;
@@ -7,12 +7,12 @@ import java.util.List;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.TaskanaEngine;
-import pro.taskana.exceptions.SystemException;
-import pro.taskana.impl.JobServiceImpl;
-import pro.taskana.impl.TaskServiceImpl;
-import pro.taskana.impl.TaskanaEngineImpl;
-import pro.taskana.transaction.TaskanaTransactionProvider;
+import pro.taskana.common.api.TaskanaEngine;
+import pro.taskana.common.api.exceptions.SystemException;
+import pro.taskana.common.internal.JobServiceImpl;
+import pro.taskana.common.internal.TaskanaEngineImpl;
+import pro.taskana.common.internal.transaction.TaskanaTransactionProvider;
+import pro.taskana.task.internal.TaskServiceImpl;
 
 /** This is the runner for Tasks jobs. */
 public class JobRunner {

lib/taskana-core/src/main/java/pro/taskana/common/internal/jobs/ScheduledJob.java

@@ -1,4 +1,4 @@
-package pro.taskana.jobs;
+package pro.taskana.common.internal.jobs;
 
 import java.time.Instant;
 import java.util.Map;

lib/taskana-core/src/main/java/pro/taskana/common/internal/jobs/TaskCleanupJob.java

@@ -1,4 +1,4 @@
-package pro.taskana.jobs;
+package pro.taskana.common.internal.jobs;
 
 import java.time.Duration;
 import java.time.Instant;
@@ -10,15 +10,15 @@ import java.util.stream.Collectors;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.BaseQuery;
-import pro.taskana.BulkOperationResults;
-import pro.taskana.TaskSummary;
-import pro.taskana.TaskanaEngine;
-import pro.taskana.TimeInterval;
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.TaskanaException;
-import pro.taskana.impl.util.LoggerUtils;
-import pro.taskana.transaction.TaskanaTransactionProvider;
+import pro.taskana.common.api.BaseQuery;
+import pro.taskana.common.api.BulkOperationResults;
+import pro.taskana.common.api.TaskanaEngine;
+import pro.taskana.common.api.TimeInterval;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.TaskanaException;
+import pro.taskana.common.internal.transaction.TaskanaTransactionProvider;
+import pro.taskana.common.internal.util.LoggerUtils;
+import pro.taskana.task.api.TaskSummary;
 
 /** Job to cleanup completed tasks after a period of time. */
 public class TaskCleanupJob extends AbstractTaskanaJob {

lib/taskana-core/src/main/java/pro/taskana/common/internal/jobs/TaskRefreshJob.java

@@ -1,4 +1,4 @@
-package pro.taskana.jobs;
+package pro.taskana.common.internal.jobs;
 
 import java.util.Arrays;
 import java.util.List;
@@ -6,11 +6,11 @@ import java.util.Map;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.TaskanaEngine;
-import pro.taskana.exceptions.TaskanaException;
-import pro.taskana.impl.TaskServiceImpl;
-import pro.taskana.impl.util.LoggerUtils;
-import pro.taskana.transaction.TaskanaTransactionProvider;
+import pro.taskana.common.api.TaskanaEngine;
+import pro.taskana.common.api.exceptions.TaskanaException;
+import pro.taskana.common.internal.transaction.TaskanaTransactionProvider;
+import pro.taskana.common.internal.util.LoggerUtils;
+import pro.taskana.task.internal.TaskServiceImpl;
 
 /**
  * This class executes a job of type CLASSIFICATIONCHANGEDJOB.

lib/taskana-core/src/main/java/pro/taskana/common/internal/jobs/TaskanaJob.java

@@ -1,6 +1,6 @@
-package pro.taskana.jobs;
+package pro.taskana.common.internal.jobs;
 
-import pro.taskana.exceptions.TaskanaException;
+import pro.taskana.common.api.exceptions.TaskanaException;
 
 /** Interface for all background TASKANA jobs. */
 public interface TaskanaJob {

lib/taskana-core/src/main/java/pro/taskana/common/internal/jobs/WorkbasketCleanupJob.java

@@ -1,4 +1,4 @@
-package pro.taskana.jobs;
+package pro.taskana.common.internal.jobs;
 
 import java.time.Duration;
 import java.time.Instant;
@@ -6,16 +6,16 @@ import java.util.List;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.BaseQuery;
-import pro.taskana.BulkOperationResults;
-import pro.taskana.TaskanaEngine;
-import pro.taskana.WorkbasketQueryColumnName;
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.exceptions.TaskanaException;
-import pro.taskana.exceptions.WorkbasketInUseException;
-import pro.taskana.exceptions.WorkbasketNotFoundException;
-import pro.taskana.transaction.TaskanaTransactionProvider;
+import pro.taskana.common.api.BaseQuery;
+import pro.taskana.common.api.BulkOperationResults;
+import pro.taskana.common.api.TaskanaEngine;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.common.api.exceptions.TaskanaException;
+import pro.taskana.common.internal.transaction.TaskanaTransactionProvider;
+import pro.taskana.workbasket.api.WorkbasketQueryColumnName;
+import pro.taskana.workbasket.api.exceptions.WorkbasketInUseException;
+import pro.taskana.workbasket.api.exceptions.WorkbasketNotFoundException;
 
 /**
  * Job to cleanup completed workbaskets after a period of time if there are no pending tasks

lib/taskana-core/src/main/java/pro/taskana/common/internal/persistence/InstantTypeHandler.java

@@ -1,4 +1,4 @@
-package pro.taskana.impl.persistence;
+package pro.taskana.common.internal.persistence;
 
 import java.sql.CallableStatement;
 import java.sql.PreparedStatement;

lib/taskana-core/src/main/java/pro/taskana/common/internal/persistence/MapTypeHandler.java

@@ -1,4 +1,4 @@
-package pro.taskana.impl.persistence;
+package pro.taskana.common.internal.persistence;
 
 import java.sql.CallableStatement;
 import java.sql.PreparedStatement;

lib/taskana-core/src/main/java/pro/taskana/common/internal/security/CurrentUserContext.java

@@ -1,6 +1,6 @@
-package pro.taskana.security;
+package pro.taskana.common.internal.security;
 
-import static pro.taskana.configuration.TaskanaEngineConfiguration.shouldUseLowerCaseForAccessIds;
+import static pro.taskana.TaskanaEngineConfiguration.shouldUseLowerCaseForAccessIds;
 
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;

lib/taskana-core/src/main/java/pro/taskana/common/internal/security/GroupPrincipal.java

@@ -1,4 +1,4 @@
-package pro.taskana.security;
+package pro.taskana.common.internal.security;
 
 import java.security.Principal;
 import java.security.acl.Group;
@@ -7,7 +7,7 @@ import java.util.Enumeration;
 import java.util.HashSet;
 import java.util.Set;
 
-import pro.taskana.impl.util.LoggerUtils;
+import pro.taskana.common.internal.util.LoggerUtils;
 
 /** Represents a group with a name and a set of members. */
 public class GroupPrincipal implements Group {

lib/taskana-core/src/main/java/pro/taskana/common/internal/security/UserPrincipal.java

@@ -1,4 +1,4 @@
-package pro.taskana.security;
+package pro.taskana.common.internal.security;
 
 import java.security.Principal;
 

lib/taskana-core/src/main/java/pro/taskana/common/internal/transaction/TaskanaCallable.java

@@ -1,4 +1,4 @@
-package pro.taskana.transaction;
+package pro.taskana.common.internal.transaction;
 
 /**
  * represents a callable Object.

lib/taskana-core/src/main/java/pro/taskana/common/internal/transaction/TaskanaTransactionProvider.java

@@ -1,4 +1,4 @@
-package pro.taskana.transaction;
+package pro.taskana.common.internal.transaction;
 
 /**
  * This class provides support for transactions.

lib/taskana-core/src/main/java/pro/taskana/common/internal/util/IdGenerator.java

@@ -1,4 +1,4 @@
-package pro.taskana.impl.util;
+package pro.taskana.common.internal.util;
 
 import java.util.UUID;
 

lib/taskana-core/src/main/java/pro/taskana/common/internal/util/LoggerUtils.java

@@ -1,4 +1,4 @@
-package pro.taskana.impl.util;
+package pro.taskana.common.internal.util;
 
 import java.util.List;
 import java.util.Map;

lib/taskana-core/src/main/java/pro/taskana/history/api/TaskanaHistory.java

@@ -1,6 +1,6 @@
 package pro.taskana.history.api;
 
-import pro.taskana.configuration.TaskanaEngineConfiguration;
+import pro.taskana.TaskanaEngineConfiguration;
 
 /** Interface for TASKANA History Service Provider. */
 public interface TaskanaHistory {

lib/taskana-core/src/main/java/pro/taskana/history/api/TaskanaHistoryEvent.java

@@ -2,7 +2,7 @@ package pro.taskana.history.api;
 
 import java.time.Instant;
 
-import pro.taskana.security.CurrentUserContext;
+import pro.taskana.common.internal.security.CurrentUserContext;
 
 /** Super class for all specific events from the TASKANA engine. */
 public class TaskanaHistoryEvent {

lib/taskana-core/src/main/java/pro/taskana/history/internal/HistoryEventProducer.java

@@ -1,11 +1,11 @@
-package pro.taskana.history;
+package pro.taskana.history.internal;
 
 import java.util.Objects;
 import java.util.ServiceLoader;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.configuration.TaskanaEngineConfiguration;
+import pro.taskana.TaskanaEngineConfiguration;
 import pro.taskana.history.api.TaskanaHistory;
 import pro.taskana.history.api.TaskanaHistoryEvent;
 

lib/taskana-core/src/main/java/pro/taskana/history/internal/events/task/ClaimCancelledEvent.java

@@ -1,6 +1,6 @@
-package pro.taskana.history.events.task;
+package pro.taskana.history.internal.events.task;
 
-import pro.taskana.Task;
+import pro.taskana.task.api.Task;
 
 /** Event fired if a task is cancelled to be claimed. */
 public class ClaimCancelledEvent extends TaskEvent {

lib/taskana-core/src/main/java/pro/taskana/history/internal/events/task/ClaimedEvent.java

@@ -1,6 +1,6 @@
-package pro.taskana.history.events.task;
+package pro.taskana.history.internal.events.task;
 
-import pro.taskana.Task;
+import pro.taskana.task.api.Task;
 
 /** Event fired if a task is claimed. */
 public class ClaimedEvent extends TaskEvent {

lib/taskana-core/src/main/java/pro/taskana/history/internal/events/task/CompletedEvent.java

@@ -1,7 +1,7 @@
-package pro.taskana.history.events.task;
+package pro.taskana.history.internal.events.task;
 
-import pro.taskana.Task;
-import pro.taskana.TaskSummary;
+import pro.taskana.task.api.Task;
+import pro.taskana.task.api.TaskSummary;
 
 /** Event fired if a task is completed. */
 public class CompletedEvent extends TaskEvent {

lib/taskana-core/src/main/java/pro/taskana/history/internal/events/task/CreatedEvent.java

@@ -1,6 +1,6 @@
-package pro.taskana.history.events.task;
+package pro.taskana.history.internal.events.task;
 
-import pro.taskana.Task;
+import pro.taskana.task.api.Task;
 
 /** Event fired if a task is created. */
 public class CreatedEvent extends TaskEvent {

lib/taskana-core/src/main/java/pro/taskana/history/internal/events/task/TaskEvent.java

@@ -1,8 +1,8 @@
-package pro.taskana.history.events.task;
+package pro.taskana.history.internal.events.task;
 
-import pro.taskana.Task;
-import pro.taskana.TaskSummary;
 import pro.taskana.history.api.TaskanaHistoryEvent;
+import pro.taskana.task.api.Task;
+import pro.taskana.task.api.TaskSummary;
 
 /** Super class for all task related events. */
 public class TaskEvent extends TaskanaHistoryEvent {

lib/taskana-core/src/main/java/pro/taskana/history/internal/events/task/TransferredEvent.java

@@ -1,10 +1,10 @@
-package pro.taskana.history.events.task;
+package pro.taskana.history.internal.events.task;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.Task;
-import pro.taskana.WorkbasketSummary;
+import pro.taskana.task.api.Task;
+import pro.taskana.workbasket.api.WorkbasketSummary;
 
 /** Event fired if a task is transferred. */
 public class TransferredEvent extends TaskEvent {

lib/taskana-core/src/main/java/pro/taskana/report/api/CategoryReport.java

@@ -1,12 +1,12 @@
-package pro.taskana.report;
+package pro.taskana.report.api;
 
 import java.util.List;
 
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.impl.report.header.TimeIntervalColumnHeader;
-import pro.taskana.impl.report.item.MonitorQueryItem;
-import pro.taskana.impl.report.structure.Report;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.report.internal.header.TimeIntervalColumnHeader;
+import pro.taskana.report.internal.item.MonitorQueryItem;
+import pro.taskana.report.internal.structure.Report;
 
 /**
  * A CategoryReport contains the total numbers of tasks of the respective category as well as the

lib/taskana-core/src/main/java/pro/taskana/report/api/ClassificationReport.java

@@ -1,18 +1,20 @@
-package pro.taskana.report;
+package pro.taskana.report.api;
 
 import java.util.List;
 
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.impl.report.header.TimeIntervalColumnHeader;
-import pro.taskana.impl.report.item.DetailedMonitorQueryItem;
-import pro.taskana.impl.report.item.MonitorQueryItem;
-import pro.taskana.impl.report.row.DetailedClassificationRow;
-import pro.taskana.impl.report.structure.Report;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.report.internal.header.TimeIntervalColumnHeader;
+import pro.taskana.report.internal.item.DetailedMonitorQueryItem;
+import pro.taskana.report.internal.item.MonitorQueryItem;
+import pro.taskana.report.internal.row.DetailedClassificationRow;
+import pro.taskana.report.internal.row.FoldableRow;
+import pro.taskana.report.internal.structure.Report;
+import pro.taskana.report.internal.structure.Row;
 
 /**
- * The ClassificationReport extends the Report. The {@link pro.taskana.impl.report.structure.Row}s
- * of the ClassificationReport are grouped by classifications.
+ * The ClassificationReport extends the Report. The {@link Row}s of the ClassificationReport are
+ * grouped by classifications.
  */
 public class ClassificationReport extends Report<MonitorQueryItem, TimeIntervalColumnHeader> {
 
@@ -30,9 +32,8 @@ public class ClassificationReport extends Report<MonitorQueryItem, TimeIntervalC
     /**
      * Returns a {@link DetailedClassificationReport} containing all tasks after applying the
      * filters. If the column headers are set the report is subdivided into clusters. Its {@link
-     * pro.taskana.impl.report.row.FoldableRow}s contain an additional list of {@link
-     * pro.taskana.impl.report.structure.Row}s for the classifications of the attachments of the
-     * tasks.
+     * FoldableRow}s contain an additional list of {@link Row}s for the classifications of the
+     * attachments of the tasks.
      *
      * @return the DetailedClassificationReport
      * @throws InvalidArgumentException if the column headers are not initialized
@@ -44,9 +45,8 @@ public class ClassificationReport extends Report<MonitorQueryItem, TimeIntervalC
 
   /**
    * The DetailedClassificationReport is a functional extension of the {@link ClassificationReport}.
-   * Its {@link pro.taskana.impl.report.row.FoldableRow}s contain an additional list of {@link
-   * pro.taskana.impl.report.structure.Row}s for the classifications of the attachments of the
-   * tasks.
+   * Its {@link FoldableRow}s contain an additional list of {@link Row}s for the classifications of
+   * the attachments of the tasks.
    */
   public static class DetailedClassificationReport
       extends Report<DetailedMonitorQueryItem, TimeIntervalColumnHeader> {

lib/taskana-core/src/main/java/pro/taskana/report/api/CustomFieldValueReport.java

@@ -1,12 +1,12 @@
-package pro.taskana.report;
+package pro.taskana.report.api;
 
 import java.util.List;
 
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.impl.report.header.TimeIntervalColumnHeader;
-import pro.taskana.impl.report.item.MonitorQueryItem;
-import pro.taskana.impl.report.structure.Report;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.report.internal.header.TimeIntervalColumnHeader;
+import pro.taskana.report.internal.item.MonitorQueryItem;
+import pro.taskana.report.internal.structure.Report;
 
 /**
  * A CustomFieldValueReport contains the total numbers of tasks of the respective custom field as

lib/taskana-core/src/main/java/pro/taskana/report/api/TaskMonitorService.java

@@ -1,11 +1,6 @@
-package pro.taskana;
+package pro.taskana.report.api;
 
-import pro.taskana.report.CategoryReport;
-import pro.taskana.report.ClassificationReport;
-import pro.taskana.report.CustomFieldValueReport;
-import pro.taskana.report.TaskStatusReport;
-import pro.taskana.report.TimestampReport;
-import pro.taskana.report.WorkbasketReport;
+import pro.taskana.common.api.CustomField;
 
 /** The Task Monitor Service manages operations on tasks regarding the monitoring. */
 public interface TaskMonitorService {

lib/taskana-core/src/main/java/pro/taskana/report/api/TaskStatusReport.java

@@ -1,15 +1,15 @@
-package pro.taskana.report;
+package pro.taskana.report.api;
 
 import java.util.List;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
-import pro.taskana.TaskState;
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.impl.report.header.TaskStatusColumnHeader;
-import pro.taskana.impl.report.item.TaskQueryItem;
-import pro.taskana.impl.report.structure.Report;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.report.internal.header.TaskStatusColumnHeader;
+import pro.taskana.report.internal.item.TaskQueryItem;
+import pro.taskana.report.internal.structure.Report;
+import pro.taskana.task.api.TaskState;
 
 /**
  * A TaskStatusReport contains the total number of tasks, clustered in their task status.

lib/taskana-core/src/main/java/pro/taskana/report/api/TimeIntervalReportBuilder.java

@@ -1,16 +1,16 @@
-package pro.taskana.report;
+package pro.taskana.report.api;
 
 import java.util.List;
 import java.util.Map;
 
-import pro.taskana.CustomField;
-import pro.taskana.TaskState;
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.impl.SelectedItem;
-import pro.taskana.impl.report.header.TimeIntervalColumnHeader;
-import pro.taskana.impl.report.item.AgeQueryItem;
-import pro.taskana.impl.report.structure.Report;
+import pro.taskana.common.api.CustomField;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.report.internal.SelectedItem;
+import pro.taskana.report.internal.header.TimeIntervalColumnHeader;
+import pro.taskana.report.internal.item.AgeQueryItem;
+import pro.taskana.report.internal.structure.Report;
+import pro.taskana.task.api.TaskState;
 
 /**
  * "Super" Interface for all TimeIntervalReportBuilders.

lib/taskana-core/src/main/java/pro/taskana/report/api/Timestamp.java

@@ -1,6 +1,8 @@
-package pro.taskana.report;
+package pro.taskana.report.api;
 
-/** This enum contains all timestamps saved in the database table for a {@link pro.taskana.Task}. */
+import pro.taskana.task.api.Task;
+
+/** This enum contains all timestamps saved in the database table for a {@link Task}. */
 public enum Timestamp {
   CREATED,
   CLAIMED,

lib/taskana-core/src/main/java/pro/taskana/report/api/TimestampReport.java

@@ -1,13 +1,13 @@
-package pro.taskana.report;
+package pro.taskana.report.api;
 
 import java.util.List;
 
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.impl.report.header.TimeIntervalColumnHeader;
-import pro.taskana.impl.report.item.TimestampQueryItem;
-import pro.taskana.impl.report.row.TimestampRow;
-import pro.taskana.impl.report.structure.Report;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.report.internal.header.TimeIntervalColumnHeader;
+import pro.taskana.report.internal.item.TimestampQueryItem;
+import pro.taskana.report.internal.row.TimestampRow;
+import pro.taskana.report.internal.structure.Report;
 
 /** A {@link TimestampReport} displays created and competed tasks for a specific dates. */
 public class TimestampReport extends Report<TimestampQueryItem, TimeIntervalColumnHeader> {

lib/taskana-core/src/main/java/pro/taskana/report/api/WorkbasketReport.java

@@ -1,13 +1,13 @@
-package pro.taskana.report;
+package pro.taskana.report.api;
 
 import java.util.List;
 
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.impl.report.CombinedClassificationFilter;
-import pro.taskana.impl.report.header.TimeIntervalColumnHeader;
-import pro.taskana.impl.report.item.MonitorQueryItem;
-import pro.taskana.impl.report.structure.Report;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.report.internal.CombinedClassificationFilter;
+import pro.taskana.report.internal.header.TimeIntervalColumnHeader;
+import pro.taskana.report.internal.item.MonitorQueryItem;
+import pro.taskana.report.internal.structure.Report;
 
 /**
  * A WorkbasketReport contains the total numbers of tasks of the respective workbasket as well as

lib/taskana-core/src/main/java/pro/taskana/report/internal/CategoryReportBuilderImpl.java

@@ -1,17 +1,17 @@
-package pro.taskana.impl;
+package pro.taskana.report.internal;
 
 import java.util.List;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.TaskanaRole;
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.impl.report.header.TimeIntervalColumnHeader;
-import pro.taskana.impl.report.item.MonitorQueryItem;
-import pro.taskana.impl.report.preprocessor.DaysToWorkingDaysPreProcessor;
-import pro.taskana.mappings.TaskMonitorMapper;
-import pro.taskana.report.CategoryReport;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.common.internal.InternalTaskanaEngine;
+import pro.taskana.report.api.CategoryReport;
+import pro.taskana.report.internal.header.TimeIntervalColumnHeader;
+import pro.taskana.report.internal.item.MonitorQueryItem;
+import pro.taskana.report.internal.preprocessor.DaysToWorkingDaysPreProcessor;
+import pro.taskana.task.api.TaskanaRole;
 
 /** The implementation of CategoryReportBuilder. */
 public class CategoryReportBuilderImpl

lib/taskana-core/src/main/java/pro/taskana/report/internal/ClassificationReportBuilderImpl.java

@@ -1,19 +1,19 @@
-package pro.taskana.impl;
+package pro.taskana.report.internal;
 
 import java.util.List;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import pro.taskana.TaskanaRole;
-import pro.taskana.exceptions.InvalidArgumentException;
-import pro.taskana.exceptions.NotAuthorizedException;
-import pro.taskana.impl.report.header.TimeIntervalColumnHeader;
-import pro.taskana.impl.report.item.DetailedMonitorQueryItem;
-import pro.taskana.impl.report.item.MonitorQueryItem;
-import pro.taskana.impl.report.preprocessor.DaysToWorkingDaysPreProcessor;
-import pro.taskana.mappings.TaskMonitorMapper;
-import pro.taskana.report.ClassificationReport;
-import pro.taskana.report.ClassificationReport.DetailedClassificationReport;
+import pro.taskana.common.api.exceptions.InvalidArgumentException;
+import pro.taskana.common.api.exceptions.NotAuthorizedException;
+import pro.taskana.common.internal.InternalTaskanaEngine;
+import pro.taskana.report.api.ClassificationReport;
+import pro.taskana.report.api.ClassificationReport.DetailedClassificationReport;
+import pro.taskana.report.internal.header.TimeIntervalColumnHeader;
+import pro.taskana.report.internal.item.DetailedMonitorQueryItem;
+import pro.taskana.report.internal.item.MonitorQueryItem;
+import pro.taskana.report.internal.preprocessor.DaysToWorkingDaysPreProcessor;
+import pro.taskana.task.api.TaskanaRole;
 
 /** The implementation of ClassificationReportBuilder. */
 public class ClassificationReportBuilderImpl

lib/taskana-core/src/main/java/pro/taskana/report/internal/CombinedClassificationFilter.java

@@ -1,10 +1,12 @@
-package pro.taskana.impl.report;
+package pro.taskana.report.internal;
+
+import pro.taskana.report.api.WorkbasketReport;
 
 /**
  * The CombinedClassificationFilter is a pair of a classificationId for a task and a
  * classificationId for the corresponding attachment that is used to filter the {@link
- * pro.taskana.report.WorkbasketReport} by the classification of the attachment. To filter by the
- * classification of the task, the classificationId of the attachment should be null.
+ * WorkbasketReport} by the classification of the attachment. To filter by the classification of the
+ * task, the classificationId of the attachment should be null.
  */
 public class CombinedClassificationFilter {