XAOracleManagedConnection (JBoss Connector API) - JBoss 3.2.7 connector API Documentation 英文版文档

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org.jboss.resource.adapter.jdbc.xa.oracle
Class XAOracleManagedConnection

java.lang.Object
  org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection
      org.jboss.resource.adapter.jdbc.xa.XAManagedConnection
          org.jboss.resource.adapter.jdbc.xa.oracle.XAOracleManagedConnection

All Implemented Interfaces:: javax.resource.spi.ManagedConnection, XAResource

public class XAOracleManagedConnection
extends XAManagedConnection

Specialization of XAManagedConnection that provides a workaround for oracle specific problems.

Theoretically, this wrapper could be used to convert Xid instances into oracle-specific format (i.e. add necessary padding to global and branch qualifiers) thus eliminating a need in XidFactory#setPad(boolean). However, we need to measure performance impact first.

Version:: $Revision:$
Author:: Igor Fedorenko.

Field Summary

Fields inherited from class org.jboss.resource.adapter.jdbc.xa.XAManagedConnection

currentXid, xaConnection, xaResource

Fields inherited from class org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection

con, destroyed, inManagedTransaction, jdbcAutoCommit, jdbcReadOnly, jdbcTransactionIsolation, mcf, props, setQueryTimeout, stateLock, underlyingAutoCommit, underlyingReadOnly

Fields inherited from interface javax.transaction.xa.XAResource

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

Constructor Summary

XAOracleManagedConnection(XAManagedConnectionFactory mcf, XAConnection xaConnection, Properties props, int transactionIsolation, int psCacheSize, boolean doQueryTimeout)
Constructor for XAResourceWrapper.

Method Summary

boolean isSameRM(XAResource ignored)
This is a workaround for a problem with oracle xa resource manager which requires separate transaction branch for all connections envolved into the transaction (as if these connections belong to different resource managers).

Methods inherited from class org.jboss.resource.adapter.jdbc.xa.XAManagedConnection

broadcastConnectionError, commit, destroy, end, forget, getLocalTransaction, getTransactionTimeout, getXAResource, prepare, recover, rollback, setTransactionTimeout, start

Methods inherited from class org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection

addConnectionEventListener, associateConnection, checkException, checkState, checkValid, cleanup, getConnection, getLog, getLogWriter, getMetaData, removeConnectionEventListener, setLogWriter

Methods inherited from class java.lang.Object

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

Constructor Detail

XAOracleManagedConnection

public XAOracleManagedConnection(XAManagedConnectionFactory mcf,
                                 XAConnection xaConnection,
                                 Properties props,
                                 int transactionIsolation,
                                 int psCacheSize,
                                 boolean doQueryTimeout)
                          throws SQLException

Constructor for XAResourceWrapper.
Parameters:: mcf -; xaConnection -; props -; transactionIsolation -
Throws:: SQLException

Method Detail

isSameRM

public boolean isSameRM(XAResource ignored)
                 throws XAException

This is a workaround for a problem with oracle xa resource manager which requires separate transaction branch for all connections envolved into the transaction (as if these connections belong to different resource managers).

Specified by:: isSameRM in interface XAResource
Overrides:: isSameRM in class XAManagedConnection

Returns:
Throws:: XAException -
See Also:: XAResource.isSameRM(XAResource)