org.hibernate.envers.reader

Class CrossTypeRevisionChangesReaderImpl

java.lang.Object

org.hibernate.envers.reader.CrossTypeRevisionChangesReaderImpl

All Implemented Interfaces:

CrossTypeRevisionChangesReader

public class CrossTypeRevisionChangesReaderImpl
extends Object
implements CrossTypeRevisionChangesReader

Author:

Lukasz Antoniak (lukasz dot antoniak at gmail dot com)

Constructor Summary

Constructors

Constructor and Description
CrossTypeRevisionChangesReaderImpl(AuditReaderImplementor auditReaderImplementor, AuditConfiguration verCfg)

Method Summary

Methods

Modifier and Type	Method and Description
List<Object>	findEntities(Number revision) Find all entities changed (added, updated and removed) in a given revision.
List<Object>	findEntities(Number revision, RevisionType revisionType) Find all entities changed (added, updated or removed) in a given revision.
Map<RevisionType,List<Object>>	findEntitiesGroupByRevisionType(Number revision) Find all entities changed (added, updated and removed) in a given revision grouped by modification type.
Set<Pair<String,Class>>	findEntityTypes(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,
                                  AuditConfiguration verCfg)

Method Detail

findEntities

public List<Object> findEntities(Number revision)
                          throws IllegalStateException,
                                 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:

IllegalStateException - If the associated entity manager is closed.

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

findEntities

public List<Object> findEntities(Number revision,
                        RevisionType revisionType)
                          throws IllegalStateException,
                                 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:

IllegalStateException - If the associated entity manager is closed.

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

findEntitiesGroupByRevisionType

public Map<RevisionType,List<Object>> findEntitiesGroupByRevisionType(Number revision)
                                                               throws IllegalStateException,
                                                                      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:

IllegalStateException - If the associated entity manager is closed.

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

findEntityTypes

public Set<Pair<String,Class>> findEntityTypes(Number revision)
                                        throws IllegalStateException,
                                               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:

IllegalStateException - If the associated entity manager is closed.

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