org.objectweb.jonas_ejb.container
Class JEntitySwitchCRU

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

public class JEntitySwitchCRU

extends JEntitySwitchCST

Container Read Uncommitted lock-policy. Only 1 thread can write. All other threads can read, without waiting for a committed state. There is no wait. This policy is deprecated : CRW should be used instead.

Author:

Philippe Durieux

Field Summary

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

JEntitySwitchCRU()
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	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, txCompleted

Methods inherited from class java.lang.Object

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

Constructor Detail

JEntitySwitchCRU

public JEntitySwitchCRU()

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. Could use the inherited method here. This is just a simplified version for performances.

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