org.enhydra.jdbc.oracle

Class OracleXAConnection

java.lang.Object

org.enhydra.jdbc.standard.StandardPooledConnection

org.enhydra.jdbc.standard.StandardXAConnection

org.enhydra.jdbc.oracle.OracleXAConnection

All Implemented Interfaces:

Runnable, Referenceable, PooledConnection, XAConnection, XAResource

public final class OracleXAConnection
extends StandardXAConnection

Provides an Oracle specific instance of StandardXAConnection. Almost all of the required functionality is provided curtesy of the generic super class which looks after most of the transaction state management. Oracle's own resource manager is informed that it is part of a global transaction and looks after the detail thereafter.

Field Summary

Fields inherited from class org.enhydra.jdbc.standard.StandardXAConnection

connectionHandle, curCon, thisAutoCommit, timerThread, transactionManager, xaDataSource

Fields inherited from class org.enhydra.jdbc.standard.StandardPooledConnection

con, dataSource, log

Fields inherited from interface javax.transaction.xa.XAResource

TMENDRSCAN, TMFAIL, TMJOIN, TMNOFLAGS, TMONEPHASE, TMRESUME, TMSTARTRSCAN, TMSUCCESS, TMSUSPEND, XA_OK, XA_RDONLY

Constructor Summary

Constructors

Constructor and Description
OracleXAConnection(StandardXADataSource dataSource, String user, String password) Creates the first free connection.

Method Summary

Modifier and Type	Method and Description
void	commit(Xid xid, boolean flag) Performs a commit on this resource manager's branch of the global transaction.
void	end(Xid xid, int flags) Ends a connection's association with a global transaction.
void	forget(Xid xid) This is called by a TM when the RM has reported a heuristic completion.
boolean	isSameRM(XAResource res)
int	prepare(Xid xid) Prepares to perform a commit.
void	rollback(Xid xid) PERFORMS a rollback on this resource manager's branch of the global transaction.
void	start(Xid xid, int flags) Associates this XAConnection with a global transaction.

Methods inherited from class org.enhydra.jdbc.standard.StandardXAConnection

checkPreparedState, close, doStart, getCommitOnPrepare, getConnection, getReference, getTransactionTimeout, getXAResource, newConnectionHandle, recover, run, setCommitOnPrepare, setTransactionManager, setTransactionTimeout, toString

Methods inherited from class org.enhydra.jdbc.standard.StandardPooledConnection

addConnectionEventListener, addStatementEventListener, connectionErrorOccurred, getPhysicalConnection, removeConnectionEventListener, removeStatementEventListener, setLogger

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.sql.PooledConnection

addConnectionEventListener, addStatementEventListener, removeConnectionEventListener, removeStatementEventListener

Constructor Detail

OracleXAConnection

public OracleXAConnection(StandardXADataSource dataSource,
                          String user,
                          String password)
                   throws SQLException

Creates the first free connection.

Throws:

SQLException

Method Detail

commit

public void commit(Xid xid,
                   boolean flag)
            throws XAException

Description copied from class: StandardXAConnection

Performs a commit on this resource manager's branch of the global transaction.

Specified by:

commit in interface XAResource

Overrides:

commit in class StandardXAConnection

Throws:

XAException

end

public void end(Xid xid,
                int flags)
         throws XAException

Description copied from class: StandardXAConnection

Ends a connection's association with a global transaction.

It need not act on the current transaction. There is an interval between being returned to the pool manager and being invoked by the transaction manager during which the current connection can change.

Note that the only effect is to change the connection state.

Specified by:

end in interface XAResource

Overrides:

end in class StandardXAConnection

Throws:

XAException

forget

public void forget(Xid xid)
            throws XAException

Description copied from class: StandardXAConnection

This is called by a TM when the RM has reported a heuristic completion. It must retain the transaction context until told to forget about it.

Specified by:

forget in interface XAResource

Overrides:

forget in class StandardXAConnection

Throws:

XAException

prepare

public int prepare(Xid xid)
            throws XAException

Description copied from class: StandardXAConnection

Prepares to perform a commit. May actually perform a commit in the flag commitOnPrepare is set to true.

Specified by:

prepare in interface XAResource

Overrides:

prepare in class StandardXAConnection

Throws:

XAException

rollback

public void rollback(Xid xid)
              throws XAException

Description copied from class: StandardXAConnection

PERFORMS a rollback on this resource manager's branch of the global transaction.

Specified by:

rollback in interface XAResource

Overrides:

rollback in class StandardXAConnection

Throws:

XAException

start

public void start(Xid xid,
                  int flags)
           throws XAException

Description copied from class: StandardXAConnection

Associates this XAConnection with a global transaction. This is the only method which can associate the current connection with a global transaction. It acts only on the current connection which must have been previously established using getConnection.

Specified by:

start in interface XAResource

Overrides:

start in class StandardXAConnection

Throws:

XAException

isSameRM

public boolean isSameRM(XAResource res)
                 throws XAException

Specified by:

isSameRM in interface XAResource

Overrides:

isSameRM in class StandardXAConnection

Throws:

XAException