TransactionEntry (JBossCache API) - JBoss 4.0.1 sp1 Cache API Documentation 英文版文档

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org.jboss.cache
Class TransactionEntry

java.lang.Object
  org.jboss.cache.TransactionEntry

public class TransactionEntry
extends Object

This is the value (key being the GlobalTransaction) in the transaction table of TreeCache.
A TransactionEntry maintains

Handle to local Transactions: there can be more than 1 local TX associated with a GlobalTransaction
List of modifications (Modification)
List of nodes that were created as part of lock acquisition. These nodes can be safely deleted when a transaction is rolled back
List of locks (IdentityLock) that have been acquired by this transaction so far

Version:: $Revision: 1.13.4.1 $
Author:: Bela Ban Apr 14, 2003

Field Summary

protected List locks
          List of locks acquired by the transaction (IdentityLock)

protected List modification_list
          List of modifications (MethodCall).

protected List nodes
          List of nodes created.

protected List txs
          List.

protected List undo_list
          List.

Constructor Summary

TransactionEntry()


Method Summary

void addLock(IdentityLock l)


void addModification(org.jgroups.blocks.MethodCall m)


void addNode(Fqn fqn)


void addUndoOperation(org.jgroups.blocks.MethodCall m)


List getLocks()


List getModifications()


List getNodes()


List getTransactions()
          Returns a list of local transactions associated with this TransactionEntry

List getUndoOperations()


void releaseAllLocks(Object owner)


void setTransaction(Transaction tx)


String toString()


Methods inherited from class java.lang.Object

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

Field Detail

txs

protected List txs

List. Backpointer to the LocalTxs. Needed to remove entry from LocalTx-GlobalTx table (if non-null)

modification_list

protected List modification_list

List of modifications (MethodCall). They will be replicated on TX commit

undo_list

protected List undo_list

List. List of compensating MethodCall objects which revert the ones in modification_list. For each entry in the modification list, we have a corresponding entry in this list. A rollback will simply iterate over this list in reverse to undo the modifications. Note that these undo-ops will never be replicated.

nodes

protected List nodes

List of nodes created. Elements are fully qualified names (Fqns)

locks

protected List locks

List of locks acquired by the transaction (IdentityLock)

Constructor Detail