org.hibernate.envers.internal.reader

Class CrossTypeRevisionChangesReaderImpl

java.lang.Object

org.hibernate.envers.internal.reader.CrossTypeRevisionChangesReaderImpl

All Implemented Interfaces:

CrossTypeRevisionChangesReader

public class CrossTypeRevisionChangesReaderImpl
extends java.lang.Object
implements CrossTypeRevisionChangesReader

Constructor Summary

Constructors

Constructor and Description
CrossTypeRevisionChangesReaderImpl(AuditReaderImplementor auditReaderImplementor, EnversService enversService)

Method Summary

Modifier and Type	Method and Description
java.util.List<java.lang.Object>	findEntities(java.lang.Number revision) Find all entities changed (added, updated and removed) in a given revision.
java.util.List<java.lang.Object>	findEntities(java.lang.Number revision, RevisionType revisionType) Find all entities changed (added, updated or removed) in a given revision.
java.util.Map<RevisionType,java.util.List<java.lang.Object>>	findEntitiesGroupByRevisionType(java.lang.Number revision) Find all entities changed (added, updated and removed) in a given revision grouped by modification type.
java.util.Set<Pair<java.lang.String,java.lang.Class>>	findEntityTypes(java.lang.Number revision) Returns set of entity names and corresponding Java classes modified in a given revision.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CrossTypeRevisionChangesReaderImpl

public CrossTypeRevisionChangesReaderImpl(AuditReaderImplementor auditReaderImplementor,
                                          EnversService enversService)

Method Detail

findEntities

public java.util.List<java.lang.Object> findEntities(java.lang.Number revision)
                                              throws java.lang.IllegalStateException,
                                                     java.lang.IllegalArgumentException

Description copied from interface: CrossTypeRevisionChangesReader

Find all entities changed (added, updated and removed) in a given revision. Executes n+1 SQL queries, where n is a number of different entity classes modified within specified revision.

Specified by:

findEntities in interface CrossTypeRevisionChangesReader

Parameters:

revision - Revision number.

Returns:

Snapshots of all audited entities changed in a given revision.

Throws:

java.lang.IllegalStateException - If the associated entity manager is closed.

java.lang.IllegalArgumentException - If a revision number is null, less or equal to 0.

findEntities

public java.util.List<java.lang.Object> findEntities(java.lang.Number revision,
                                                     RevisionType revisionType)
                                              throws java.lang.IllegalStateException,
                                                     java.lang.IllegalArgumentException

Description copied from interface: CrossTypeRevisionChangesReader

Find all entities changed (added, updated or removed) in a given revision. Executes n+1 SQL queries, where n is a number of different entity classes modified within specified revision.

Specified by:

findEntities in interface CrossTypeRevisionChangesReader

Parameters:

revision - Revision number.

revisionType - Type of modification.

Returns:

Snapshots of all audited entities changed in a given revision and filtered by modification type.

Throws:

java.lang.IllegalStateException - If the associated entity manager is closed.

java.lang.IllegalArgumentException - If a revision number is null, less or equal to 0.

findEntitiesGroupByRevisionType

public java.util.Map<RevisionType,java.util.List<java.lang.Object>> findEntitiesGroupByRevisionType(java.lang.Number revision)
                                                                                             throws java.lang.IllegalStateException,
                                                                                                    java.lang.IllegalArgumentException

Description copied from interface: CrossTypeRevisionChangesReader

Find all entities changed (added, updated and removed) in a given revision grouped by modification type. Executes mn+1 SQL queries, where:

• n - number of different entity classes modified within specified revision.
• m - number of different revision types. See RevisionType enum.

Specified by:

findEntitiesGroupByRevisionType in interface CrossTypeRevisionChangesReader

Parameters:

revision - Revision number.

Returns:

Map containing lists of entity snapshots grouped by modification operation (e.g. addition, update, removal).

Throws:

java.lang.IllegalStateException - If the associated entity manager is closed.

java.lang.IllegalArgumentException - If a revision number is null, less or equal to 0.

findEntityTypes

public java.util.Set<Pair<java.lang.String,java.lang.Class>> findEntityTypes(java.lang.Number revision)
                                                                      throws java.lang.IllegalStateException,
                                                                             java.lang.IllegalArgumentException

Description copied from interface: CrossTypeRevisionChangesReader

Returns set of entity names and corresponding Java classes modified in a given revision.

Specified by:

findEntityTypes in interface CrossTypeRevisionChangesReader

Parameters:

revision - Revision number.

Returns:

Set of entity names and corresponding Java classes modified in a given revision.

Throws:

java.lang.IllegalStateException - If the associated entity manager is closed.

java.lang.IllegalArgumentException - If a revision number is null, less or equal to 0.