org.objectweb.jonas_ejb.container
Class JEntitySwitchRO

java.lang.Object
  org.objectweb.jonas_ejb.container.JEntitySwitch
      org.objectweb.jonas_ejb.container.JEntitySwitchCST
          org.objectweb.jonas_ejb.container.JEntitySwitchRO

public class JEntitySwitchRO
extends JEntitySwitchCST

ReadOnly lock policy : Instance are never written to database. They are regularly read from database if bean is shared.

Author:

Philippe Durieux

Field Summary

protected long

nextRead

Fields inherited from class org.objectweb.jonas_ejb.container.JEntitySwitchCST

itContext

Fields inherited from class org.objectweb.jonas_ejb.container.JEntitySwitch

bf, blockedtx, counter, countIH, countIT, deadlockTimeout, estimestamp, FEW_SECONDS, ident, inactivityTimeout, inDirtyList, isdetached, isremoved, lazyregister, local, lockpolicy, mustReload, mustStore, myTimerService, pk, readTimeout, reentrant, remote, runningtx, shared, todiscard, txUpdates, waiters, writingtx

Constructor Summary

JEntitySwitchRO()
empty constructor.

Method Summary

protected void	initpolicy(JEntityFactory bf)
JEntityContext	mapICtx(javax.transaction.Transaction tx, JEntityContext bctx, boolean forced, boolean holdit, boolean notused) Map a context and its instance.
void	txCompleted(javax.transaction.Transaction tx, boolean committed) This transaction is now over.
void	waitmyturn(javax.transaction.Transaction tx) Wait until I'm allowed to work on this instance.

Methods inherited from class org.objectweb.jonas_ejb.container.JEntitySwitchCST

endIH, getContext4Tx, getState, passivateIH, removeContext4Tx, setContext4Tx, tryBindICtx

Methods inherited from class org.objectweb.jonas_ejb.container.JEntitySwitch

bindICtx, detachPk, discardContext, forceDiscardICtx, getBeanFactory, getBlockingTx, getEntityTimerService, getICtx, getICtx, getLocal, getPolicy, getPrimaryKey, getRemote, init, lazyRegistering, notifyTimeout, notifyWriting, registerCtx, releaseICtx, terminate

Methods inherited from class java.lang.Object

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

Field Detail

nextRead

protected long nextRead

Constructor Detail

JEntitySwitchRO

public JEntitySwitchRO()

empty constructor. Object is initialized via init() because it is implemented differently according to jorm mappers.

Method Detail

initpolicy

protected void initpolicy(JEntityFactory bf)

Overrides:

initpolicy in class JEntitySwitchCST

waitmyturn

public void waitmyturn(javax.transaction.Transaction tx)

Description copied from class: JEntitySwitchCST

Wait until I'm allowed to work on this instance. Transaction isolation may be done here, depending on lock-policy.

Overrides:

waitmyturn in class JEntitySwitchCST

Parameters:

tx - Transaction

mapICtx

public JEntityContext mapICtx(javax.transaction.Transaction tx,
                              JEntityContext bctx,
                              boolean forced,
                              boolean holdit,
                              boolean notused)

Map a context and its instance.

Overrides:

mapICtx in class JEntitySwitch

Parameters:

tx - - the Transaction object

bctx - - the JEntityContext to bind if not null

forced - - force to take this context. (case of create)

holdit - - increment count to hold it, a release will be called later.

notused - - true if we must check non-reentrance.

Returns:

JEntityContext actually mapped

txCompleted

public void txCompleted(javax.transaction.Transaction tx,
                        boolean committed)

This transaction is now over. We can dispose of the instance for another transaction or discard it.

Overrides:

txCompleted in class JEntitySwitch

Parameters:

tx - the transaction object

committed - true if transaction was committed.