org.itracker.persistence.dao
Class TimestampInterceptor

java.lang.Object
  org.hibernate.EmptyInterceptor
      org.itracker.persistence.dao.TimestampInterceptor

All Implemented Interfaces:

Serializable, org.hibernate.Interceptor

public class TimestampInterceptor
extends org.hibernate.EmptyInterceptor

A Hibernate Interceptor that automatically sets the createDate and lastModifiedDate of any AbstractEntity instance that is inserted or updated.

Author:

johnny

See Also:

Serialized Form

Field Summary

Fields inherited from class org.hibernate.EmptyInterceptor

INSTANCE

Constructor Summary

TimestampInterceptor()

Method Summary

boolean	onFlushDirty(Object entity, Serializable id, Object[] currentState, Object[] previousState, String[] propertyNames, org.hibernate.type.Type[] types) Called before updating the datastore.
boolean	onSave(Object entity, Serializable id, Object[] state, String[] propertyNames, org.hibernate.type.Type[] types) Called before inserting an item in the datastore.

Methods inherited from class org.hibernate.EmptyInterceptor

afterTransactionBegin, afterTransactionCompletion, beforeTransactionCompletion, findDirty, getEntity, getEntityName, instantiate, isTransient, onCollectionRecreate, onCollectionRemove, onCollectionUpdate, onDelete, onLoad, onPrepareStatement, postFlush, preFlush

Methods inherited from class java.lang.Object

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

Constructor Detail

TimestampInterceptor

public TimestampInterceptor()

Method Detail

onSave

public boolean onSave(Object entity,
                      Serializable id,
                      Object[] state,
                      String[] propertyNames,
                      org.hibernate.type.Type[] types)

Called before inserting an item in the datastore.

The interceptor may modify the state, which will be used for the SQL INSERT and propagated to the persistent object.

Automatically sets the createDate and lastModifiedDate properties.

Specified by:

onSave in interface org.hibernate.Interceptor

Overrides:

onSave in class org.hibernate.EmptyInterceptor

Returns:

true if the timestamp was set and thus the state was modified

onFlushDirty

public boolean onFlushDirty(Object entity,
                            Serializable id,
                            Object[] currentState,
                            Object[] previousState,
                            String[] propertyNames,
                            org.hibernate.type.Type[] types)

Called before updating the datastore.

Called when an object is detected to be dirty, during a flush. The interceptor may modify the detected currentState, which will be propagated to both the database and the persistent object.
Note that not all flushes end in actual synchronization with the database, in which case the new currentState will be propagated to the object, but not necessarily (immediately) to the database. It is strongly recommended that the interceptor not modify the previousState.

Automatically sets the lastModifiedDate property.

Specified by:

onFlushDirty in interface org.hibernate.Interceptor

Overrides:

onFlushDirty in class org.hibernate.EmptyInterceptor

Returns:

true if the timestamp was set and thus the currentState was modified