Class OracleXAHeteroResource
- java.lang.Object
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- oracle.jdbc.xa.OracleXAResource
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- oracle.jdbc.xa.client.OracleXAResource
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- oracle.jdbc.xa.client.OracleXAHeteroResource
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- All Implemented Interfaces:
java.beans.PropertyChangeListener
,java.util.EventListener
,javax.transaction.xa.XAResource
,oracle.jdbc.diagnostics.Diagnosable
,oracle.jdbc.internal.Monitor
public class OracleXAHeteroResource extends OracleXAResource
Implements javax.transaction.xa.XAResource.
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Field Summary
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Fields inherited from class oracle.jdbc.xa.OracleXAResource
activeXid, canBeMigratablySuspended, connection, dblink, DEFAULT_XA_TIMEOUT, ORAISOLATIONMASK, ORATMREADONLY, ORATMREADWRITE, ORATMSERIALIZABLE, ORATRANSLOOSE, savedConnectionAutoCommit, savedXAConnectionAutoCommit, timeout, TMENDRSCAN, TMFAIL, TMJOIN, TMMIGRATE, TMNOFLAGS, TMNOMIGRATE, TMONEPHASE, TMPROMOTE, TMRESUME, TMSTARTRSCAN, TMSUCCESS, TMSUSPEND, XA_OK, xaconnection, xidHash
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Constructor Summary
Constructors Constructor Description OracleXAHeteroResource(java.sql.Connection pm_conn, OracleXAConnection xaconn)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
commit(javax.transaction.xa.Xid xid, boolean onePhase)
Commit work done by global transaction specified by xid.void
end(javax.transaction.xa.Xid xid, int flag)
End work performed on behalf of a transaction branch.void
forget(javax.transaction.xa.Xid xid)
Tell RM to forget about a heuristically completed txn branchint
prepare(javax.transaction.xa.Xid xid)
Ask RM to prepare for a commit of the txn specified in xid.void
rollback(javax.transaction.xa.Xid xid)
Ask RM to roll back work done on behalf of a txn branch.void
start(javax.transaction.xa.Xid xid, int flags)
Starts work on behalf of a transaction branch.-
Methods inherited from class oracle.jdbc.xa.client.OracleXAResource
doCommit, doDoTwoPhaseAction, doEnd, doForget, doPrepare, doRollback, doStart, doTwoPhaseAction
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Methods inherited from class oracle.jdbc.xa.OracleXAResource
allowGlobalTxnModeOnly, checkError, checkError, checkError, convertError, createOrUpdateXid, enterGlobalTxnMode, exitGlobalTxnMode, getConnectionDuringExceptionHandling, getDiagnosable, getMonitorLock, getPhysicalConnection, getTransactionTimeout, isOnStack, isSameRM, isXidListEmpty, isXidSuspended, recover, removeXidFromList, restoreAutoCommitModeForGlobalTransaction, resumeStacked, saveAndAlterAutoCommitModeForGlobalTransaction, setTransactionTimeout, suspendStacked, updateXidList
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface oracle.jdbc.diagnostics.Diagnosable
begin, begin, beginCurrentSql, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debugp, end, end, endCurrentSql, format, isDebugEnabled, isDiagnoseFirstFailureEnabled, isLoggable, isSensitiveEnabled, onClose, propertyChange, resumeLogging, secure, suspendLogging, trace, tracep
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Constructor Detail
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OracleXAHeteroResource
public OracleXAHeteroResource(java.sql.Connection pm_conn, OracleXAConnection xaconn) throws javax.transaction.xa.XAException
- Throws:
javax.transaction.xa.XAException
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Method Detail
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start
public void start(javax.transaction.xa.Xid xid, int flags) throws javax.transaction.xa.XAException
Starts work on behalf of a transaction branch.If TMJOIN is specified, the start is for joining an existing txn branch xid. If TMRESUME is specified, the start is to resume a suspended transaction branch specified in xid. Transaction suspend is done by calling the end method specifying the TMSUSPEND flag. If neither TMJOIN nor TMRESUME is specified and the transaction branch specified in xid already exists, the resource manager raises the duplicate transaction exception via XAER_DUPID.
start() allows Isolation flags to be set, only when beginning a new transaction. XAER_INVAL exception is raised for error cases, such as (1) when JOIN/RESUME specified on start (2) invalid Isol flag is set. The valid Isolation levels allowed are: ORATMREADONLY ORATMREADWRITE ORATMSERIALIZABLE
- Specified by:
start
in interfacejavax.transaction.xa.XAResource
- Overrides:
start
in classOracleXAResource
- Parameters:
xid
- A global transaction identifier.flag
- One of TMNOFLAGS, TMJOIN, TMNOMIGRATE or TMRESUME.- Throws:
javax.transaction.xa.XAException
- An error has occurred. Possible exceptions are XA_RB, XAER_RMERR, XAER_RMFAIL, XAER_DUPID, XAER_OUTSIDE, XAER_NOTA, XAER_INVAL, or XAER_PROTO.
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end
public void end(javax.transaction.xa.Xid xid, int flag) throws javax.transaction.xa.XAException
End work performed on behalf of a transaction branch.The resource manager dissociates the XA resource from the transaction branch specified and let the transaction be completed.
If TMSUSPEND is specified in flag, the txn branch is temporarily suspended in incomplete state. The txn context is in suspended state and must be resumed via start with TMRESUME specified. If TMFAIL is specified, the portion of work has failed. The RM may mark the transaction as rollback-only. If TMSUCCESS is specified, the portion of work has completed successfully.
- Specified by:
end
in interfacejavax.transaction.xa.XAResource
- Overrides:
end
in classOracleXAResource
- Parameters:
xid
- A global transaction identifier that is the same as what was used previously in the start method.flag
- One of TMSUCCESS, TMFAIL, or TMSUSPEND.- Throws:
javax.transaction.xa.XAException
- An error has occurred. Possible XAException values are XAER_RMERR, XAER_RMFAILED, XAER_NOTA, XAER_INVAL, XAER_PROTO, or XA_RB.
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commit
public void commit(javax.transaction.xa.Xid xid, boolean onePhase) throws javax.transaction.xa.XAException
Commit work done by global transaction specified by xid.- Specified by:
commit
in interfacejavax.transaction.xa.XAResource
- Overrides:
commit
in classOracleXAResource
- Parameters:
xid
- A global transaction identifier.onePhase
- If true, the RM should use a 1-phase commit protocol to commit the work done on behalf of xid.- Throws:
javax.transaction.xa.XAException
- Possible XAExceptions are XA_HEURHAZ, XA_HEURCOM, XA_HEURRB, XA_HEURMIX, XAER_RMERR, XAER_RMFAIL, XAER_NOTA, XAER_INVAL, or XAER_PROTO. If the resource manager did not commit the txn and the parameter onePhase is set to true, the RM may raise one of the XA_RB exceptions. Upon return, the RM has rolled back the branch's work and has released all held resources.
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prepare
public int prepare(javax.transaction.xa.Xid xid) throws javax.transaction.xa.XAException
Ask RM to prepare for a commit of the txn specified in xid.- Specified by:
prepare
in interfacejavax.transaction.xa.XAResource
- Overrides:
prepare
in classOracleXAResource
- Parameters:
xid
- A global transaction identifier.- Returns:
- A value indicating the resource manager's vote on the outcome of the txn. The possible values are: XA_RDONLY or XA_OK. If the RM wants to roll back the transaction, it should do so by raising an appropriate XAException in the prepare method.
- Throws:
javax.transaction.xa.XAException
- Possible exception values are: XA_RB, XAER_RMERR, XAER_RMFAIL, XAER_NOTA, XAER_INVAL, or XAER_PROTO.
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forget
public void forget(javax.transaction.xa.Xid xid) throws javax.transaction.xa.XAException
Tell RM to forget about a heuristically completed txn branch- Specified by:
forget
in interfacejavax.transaction.xa.XAResource
- Overrides:
forget
in classOracleXAResource
- Parameters:
xid
- A global transaction identifier.- Throws:
javax.transaction.xa.XAException
- An error has occurred. Possible exception values are XAER_RMERR, XAER_RMFAIL, XAER_NOTA, XAER_INVAL, or XAER_PROTO.
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rollback
public void rollback(javax.transaction.xa.Xid xid) throws javax.transaction.xa.XAException
Ask RM to roll back work done on behalf of a txn branch.- Specified by:
rollback
in interfacejavax.transaction.xa.XAResource
- Overrides:
rollback
in classOracleXAResource
- Parameters:
xid
- A global transaction identifier.- Throws:
javax.transaction.xa.XAException
- An error has occurred.
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