精通Hibernate源码

findDirty()：决定Session缓存中哪些对象是脏对象，Session的flush()方法调用此方法。如果返回null，Session就会按默认的方式进行脏检查。 Called from flush(). instantiate(Class clazz, Serializable id)：创建实体类的实例。如果返回null，Hibernate就会按默认的方式 创建实体类的实例。 Boolean isUnsaved(Object entity)：如果返回true，表示 Called when a transient entity is passed to saveOrUpdate(). void onDelete(Object entity, Serializable id, Object[] state, String[] propertyNames, Type[] types) Called before an object is deleted. boolean onFlushDirty(Object entity, Serializable id, Object[] currentState, Object[] previousState, String[] propertyNames, Type[] types) Called when an object is detected to be dirty, during a flush. boolean onLoad(Object entity, Serializable id, Object[] state, String[] propertyNames, Type[] types) Called just before an object is initialized. boolean onSave(Object entity, Serializable id, Object[] state, String[] propertyNames, Type[] types) Called before an object is saved. void postFlush(Iterator entities) Called after a flush that actually ends in execution of the SQL statements required to synchronize in-memory state with the database. void preFlush(Iterator entities) Called before a flush