org.jboss.cache.transaction
Class TransactionTable

java.lang.Object
  org.jboss.cache.transaction.TransactionTable

public class TransactionTable
extends java.lang.Object

Maintains the mapping between a local Transaction and a GlobalTransaction. Also stores TransactionEntry instances under a given transaction.

Version:

$Revision: 1.4 $

Author:

Bela Ban Apr 14, 2003

Field Summary

protected java.util.Map<javax.transaction.Transaction,GlobalTransaction>	tx_map Mapping between local (javax.transaction.Transaction) and GlobalTransactions.
protected java.util.Map<GlobalTransaction,TransactionEntry>	txs Mappings between GlobalTransactions and modifications.

Constructor Summary

TransactionTable()
Constructs a new table.

Method Summary

void	addCacheLoaderModification(GlobalTransaction gtx, MethodCall m)
void	addLock(GlobalTransaction gtx, NodeLock l) Adds a lock to the global transaction.
void	addLocks(GlobalTransaction gtx, java.util.Collection locks) Adds a collection of locks to the global transaction.
void	addModification(GlobalTransaction gtx, MethodCall m) Adds a motification to the global transaction.
void	addUndoOperation(GlobalTransaction gtx, MethodCall m) Adds an undo operation to the global transaction.
TransactionEntry	get(GlobalTransaction gtx) Returns the local transaction entry for the global transaction.
GlobalTransaction	get(javax.transaction.Transaction tx) Returns the global transaction associated with the local transaction.
javax.transaction.Transaction	getLocalTransaction(GlobalTransaction gtx) Returns the local transaction associated with a GlobalTransaction.
int	getNumGlobalTransactions() Returns the number of global transactions.
int	getNumLocalTransactions() Returns the number of local transactions.
void	put(GlobalTransaction tx, TransactionEntry entry) Associates the global transaction with a transaction entry.
void	put(javax.transaction.Transaction tx, GlobalTransaction gtx) Associates the global transaction with the local transaction.
TransactionEntry	remove(GlobalTransaction tx) Removes a global transation, returns the old transaction entry.
GlobalTransaction	remove(javax.transaction.Transaction tx) Removes a local transation, returns the global transaction entry.
java.lang.String	toString() Returns summary debug information.
java.lang.String	toString(boolean print_details) Returns detailed debug information.

Methods inherited from class java.lang.Object

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

Field Detail

tx_map

protected java.util.Map<javax.transaction.Transaction,GlobalTransaction> tx_map

Mapping between local (javax.transaction.Transaction) and GlobalTransactions. New: a local TX can have a number of GTXs

txs

protected java.util.Map<GlobalTransaction,TransactionEntry> txs

Mappings between GlobalTransactions and modifications.

Constructor Detail

TransactionTable

public TransactionTable()

Constructs a new table.

Method Detail

getNumLocalTransactions

public int getNumLocalTransactions()

Returns the number of local transactions.

getNumGlobalTransactions

public int getNumGlobalTransactions()

Returns the number of global transactions.

get

public GlobalTransaction get(javax.transaction.Transaction tx)

Returns the global transaction associated with the local transaction. Returns null if tx is null or it was not found.

getLocalTransaction

public javax.transaction.Transaction getLocalTransaction(GlobalTransaction gtx)

Returns the local transaction associated with a GlobalTransaction. Not very efficient as the values have to be iterated over, don't use frequently

Parameters:

gtx - The GlobalTransaction

Returns:

Transaction. The local transaction associated with a given GlobalTransaction). This will be null if no local transaction is associated with a given GTX

put

public void put(javax.transaction.Transaction tx,
                GlobalTransaction gtx)

Associates the global transaction with the local transaction.

get

public TransactionEntry get(GlobalTransaction gtx)

Returns the local transaction entry for the global transaction. Returns null if tx is null or it was not found.

put

public void put(GlobalTransaction tx,
                TransactionEntry entry)

Associates the global transaction with a transaction entry.

remove

public TransactionEntry remove(GlobalTransaction tx)

Removes a global transation, returns the old transaction entry.

remove

public GlobalTransaction remove(javax.transaction.Transaction tx)

Removes a local transation, returns the global transaction entry.

addModification

public void addModification(GlobalTransaction gtx,
                            MethodCall m)

Adds a motification to the global transaction.

addCacheLoaderModification

public void addCacheLoaderModification(GlobalTransaction gtx,
                                       MethodCall m)

addUndoOperation

public void addUndoOperation(GlobalTransaction gtx,
                             MethodCall m)

Adds an undo operation to the global transaction.

addLock

public void addLock(GlobalTransaction gtx,
                    NodeLock l)

Adds a lock to the global transaction.

addLocks

public void addLocks(GlobalTransaction gtx,
                     java.util.Collection locks)

Adds a collection of locks to the global transaction.

toString

public java.lang.String toString()

Returns summary debug information.

Overrides:

toString in class java.lang.Object

toString

public java.lang.String toString(boolean print_details)

Returns detailed debug information.