com.arjuna.ats.internal.jts.recovery.transactions

Class TransactionCache

java.lang.Object

com.arjuna.ats.internal.jts.recovery.transactions.TransactionCache

public class TransactionCache
extends Object

The transaction cache ensures that there is no interference between different threads that may be working with the same transaction. The cache automatically removes or refreshes transactions that require no further recovery or re-recovery respectively. Various volatile information for the transaction is also kept in the cache (e.g. number of attempts to recover since first activated in this RecoveryManager run)

Version:

$Id: TransactionCache.java 2342 2006-03-30 13:06:17Z $

See Also:

CachedRecoveredTransaction, RecoveredTransaction

Constructor Summary

Constructors

Constructor and Description
TransactionCache()

Method Summary

Modifier and Type	Method and Description
static void	addResourceRecord(Uid actionUid, String theType, Uid rcUid, Resource r) Add a new resource to a recovered transaction.
static Status	get_status(Uid actionUid, String theType) Get the status of a transaction
static Status	getCachedStatus(Uid actionUid) Get the status of a transaction that is already in the cache
static Status	getOriginalStatus(Uid actionUid, String theType) Get the status of a transaction as it is in the original process (so type is not needed) NoTransaction means the original process has gone
static int	getRecoveryStatus(Uid actionUid, String theType)
static void	replayPhase2(Uid actionUid, String theType) Replays phase 2 of a transaction.

Methods inherited from class java.lang.Object

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

Constructor Detail

TransactionCache

public TransactionCache()

Method Detail

get_status

public static Status get_status(Uid actionUid,
                                String theType)
                         throws SystemException

Get the status of a transaction

Throws:

SystemException

getCachedStatus

public static Status getCachedStatus(Uid actionUid)
                              throws SystemException

Get the status of a transaction that is already in the cache

Throws:

SystemException

getOriginalStatus

public static Status getOriginalStatus(Uid actionUid,
                                       String theType)
                                throws SystemException

Get the status of a transaction as it is in the original process (so type is not needed) NoTransaction means the original process has gone

Throws:

SystemException

getRecoveryStatus

public static int getRecoveryStatus(Uid actionUid,
                                    String theType)

addResourceRecord

public static void addResourceRecord(Uid actionUid,
                                     String theType,
                                     Uid rcUid,
                                     Resource r)

Add a new resource to a recovered transaction. This is primarily to allow a new resource that has been provided through a replay_completion to be added to the transaction and thereby replacing the original resource that was passed in on register_resource.

replayPhase2

public static void replayPhase2(Uid actionUid,
                                String theType)

Replays phase 2 of a transaction.