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## org.hibernate.envers.strategy
Class DefaultAuditStrategy

    java.lang.Object
      org.hibernate.envers.strategy.DefaultAuditStrategy

All Implemented Interfaces:
  AuditStrategy

    public class DefaultAuditStrategy

extends Object
implements AuditStrategy

Default strategy is to simply persist the audit data.

Constructor Summary
`DefaultAuditStrategy()`

Method Summary
`void` | `addAssociationAtRevisionRestriction(QueryBuilder rootQueryBuilder, String revisionProperty, String revisionEndProperty, boolean addAlias, MiddleIdData referencingIdData, String versionsMiddleEntityName, String eeOriginalIdPropertyPath, String revisionPropertyPath, String originalIdPropertyName, MiddleComponentData... componentDatas)` Update the rootQueryBuilder with an extra WHERE clause to restrict the revision for a middle-entity association.
`void` | `addEntityAtRevisionRestriction(GlobalConfiguration globalCfg, QueryBuilder rootQueryBuilder, String revisionProperty, String revisionEndProperty, boolean addAlias, MiddleIdData idData, String revisionPropertyPath, String originalIdPropertyName, String alias1, String alias2)` Update the rootQueryBuilder with an extra WHERE clause to restrict the revision for a two-entity relation.
`void` | `perform(Session session, String entityName, AuditConfiguration auditCfg, Serializable id, Object data, Object revision)` Perform the persistence of audited data for regular entities.
`void` | `performCollectionChange(Session session, AuditConfiguration auditCfg, PersistentCollectionChangeData persistentCollectionChangeData, Object revision)` Perform the persistence of audited data for collection ("middle") entities.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### DefaultAuditStrategy

    public DefaultAuditStrategy()

Method Detail

### perform

    public void perform(Session session,
                        String entityName,
                        AuditConfiguration auditCfg,
                        Serializable id,
                        Object data,
                        Object revision)

  Description copied from interface: `AuditStrategy`
  Perform the persistence of audited data for regular entities.

  Specified by:
    `perform` in interface `AuditStrategy`
  Parameters:
    `session` - Session, which can be used to persist the data.
    `entityName` - Name of the entity, in which the audited change happens
    `auditCfg` - Audit configuration
    `id` - Id of the entity.
    `data` - Audit data to persist
    `revision` - Current revision data

### performCollectionChange

    public void performCollectionChange(Session session,
                                        AuditConfiguration auditCfg,
                                        PersistentCollectionChangeData persistentCollectionChangeData,
                                        Object revision)

  Description copied from interface: `AuditStrategy`
  Perform the persistence of audited data for collection ("middle") entities.

  Specified by:
    `performCollectionChange` in interface `AuditStrategy`
  Parameters:
    `session` - Session, which can be used to persist the data.
    `auditCfg` - Audit configuration
    `persistentCollectionChangeData` - Collection change data to be persisted.
    `revision` - Current revision data

### addEntityAtRevisionRestriction

    public void addEntityAtRevisionRestriction(GlobalConfiguration globalCfg,
                                               QueryBuilder rootQueryBuilder,
                                               String revisionProperty,
                                               String revisionEndProperty,
                                               boolean addAlias,
                                               MiddleIdData idData,
                                               String revisionPropertyPath,
                                               String originalIdPropertyName,
                                               String alias1,
                                               String alias2)

  Description copied from interface: `AuditStrategy`
  Update the rootQueryBuilder with an extra WHERE clause to restrict the revision for a two-entity relation. This WHERE clause depends on the AuditStrategy, as follows:
  - For `DefaultAuditStrategy` a subquery is created:

    `e.revision = (SELECT max(...) ...)`

  - for `ValidityAuditStrategy` the revision-end column is used:

    `e.revision <= :revision and (e.endRevision > :revision or e.endRevision is null)`

  Specified by:
    `addEntityAtRevisionRestriction` in interface `AuditStrategy`
  Parameters:
    `globalCfg` - the `GlobalConfiguration`
    `rootQueryBuilder` - the `QueryBuilder` that will be updated
    `revisionProperty` - property of the revision column
    `revisionEndProperty` - property of the revisionEnd column (only used for `ValidityAuditStrategy`)
    `addAlias` - `boolean` indicator if a left alias is needed
    `idData` - id-information for the two-entity relation (only used for `DefaultAuditStrategy`)
    `revisionPropertyPath` - path of the revision property (only used for `ValidityAuditStrategy`)
    `originalIdPropertyName` - name of the id property (only used for `ValidityAuditStrategy`)
    `alias1` - an alias used for subquery (only used for `ValidityAuditStrategy`)
    `alias2` - an alias used for subquery (only used for `ValidityAuditStrategy`)

### addAssociationAtRevisionRestriction

    public void addAssociationAtRevisionRestriction(QueryBuilder rootQueryBuilder,
                                                    String revisionProperty,
                                                    String revisionEndProperty,
                                                    boolean addAlias,
                                                    MiddleIdData referencingIdData,
                                                    String versionsMiddleEntityName,
                                                    String eeOriginalIdPropertyPath,
                                                    String revisionPropertyPath,
                                                    String originalIdPropertyName,
                                                    MiddleComponentData... componentDatas)

  Description copied from interface: `AuditStrategy`
  Update the rootQueryBuilder with an extra WHERE clause to restrict the revision for a middle-entity association. This WHERE clause depends on the AuditStrategy, as follows:
  - For `DefaultAuditStrategy` a subquery is created:

    `e.revision = (SELECT max(...) ...)`

  - for `ValidityAuditStrategy` the revision-end column is used:

    `e.revision <= :revision and (e.endRevision > :revision or e.endRevision is null)`

  Specified by:
    `addAssociationAtRevisionRestriction` in interface `AuditStrategy`
  Parameters:
    `rootQueryBuilder` - the `QueryBuilder` that will be updated
    `revisionProperty` - property of the revision column
    `revisionEndProperty` - property of the revisionEnd column (only used for `ValidityAuditStrategy`)
    `addAlias` - `boolean` indicator if a left alias is needed
    `referencingIdData` - id-information for the middle-entity association (only used for `DefaultAuditStrategy`)
    `versionsMiddleEntityName` - name of the middle-entity
    `eeOriginalIdPropertyPath` - name of the id property (only used for `ValidityAuditStrategy`)
    `revisionPropertyPath` - path of the revision property (only used for `ValidityAuditStrategy`)
    `originalIdPropertyName` - name of the id property (only used for `ValidityAuditStrategy`)
    `componentDatas` - information about the middle-entity relation

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