org.jaffa.persistence.engines.jdbcengine.interceptor
Class LockInterceptor

java.lang.Object
  org.jaffa.persistence.engines.jdbcengine.interceptor.AbstractInterceptor
      org.jaffa.persistence.engines.jdbcengine.interceptor.LockInterceptor

public class LockInterceptor

extends AbstractInterceptor

This is the Interceptor which locks the Persistent objects in the database.

Constructor Summary

LockInterceptor()

Method Summary

Object

invoke(PersistentTransaction pt) Performs the logic associated with locking Persistent objects in the database.

Methods inherited from class org.jaffa.persistence.engines.jdbcengine.interceptor.AbstractInterceptor

getNextInterceptor, setNextInterceptor

Methods inherited from class java.lang.Object

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

Constructor Detail

LockInterceptor

public LockInterceptor()

Method Detail

invoke

public Object invoke(PersistentTransaction pt)
              throws UOWException

Performs the logic associated with locking Persistent objects in the database. This will lock each object in the PersistentTransaction's UPDATE + DELETE collection in the database, utilising the JdbcBridge. It will then pass on the control to the next Interceptor in the chain.

Specified by:

invoke in class AbstractInterceptor

Parameters:

pt - The PersistentTransaction object, on which the Interceptor is to be executed.

Returns:

the output from the next Interceptor in the chain.

Throws:

UOWException - if any error occurs.