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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derby.jdbc 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.derby.jdbc.EmbedXAResource

EmbedXAResource
class EmbedXAResource implements XAResource(Code)
Implements XAResource



Constructor Summary
 EmbedXAResource(EmbedPooledConnection con, ResourceAdapter ra)
    

Method Summary
final public synchronized  voidcommit(Xid xid, boolean onePhase)
     Commit the global transaction specified by xid.
Parameters:
  xid - A global transaction identifier
Parameters:
  onePhase - If true, the resource manager should use a one-phasecommit protocol to commit the work done on behalf of xid.
exception:
  XAException - An error has occurred.
final public synchronized  voidend(Xid xid, int flags)
     Ends the work performed on behalf of a transaction branch.
final public synchronized  voidforget(Xid xid)
     Tell the resource manager to forget about a heuristically completed transaction branch.
Parameters:
  xid - A global transaction identifier
exception:
  XAException - An error has occurred.
 XidgetCurrentXid()
    
public  intgetTransactionTimeout()
     Obtain the current transaction timeout value set for this XAResource instance.
final public synchronized  booleanisSameRM(XAResource xares)
     This method is called to determine if the resource manager instance represented by the target object is the same as the resouce manager instance represented by the parameter xares.
Parameters:
  xares - An XAResource object whose resource manager instance is tobe compared with the resource manager instance of the target object.
final public synchronized  intprepare(Xid xid)
     Ask the resource manager to prepare for a transaction commit of the transaction specified in xid.
Parameters:
  xid - A global transaction identifier A value indicating the resource manager's vote on the outcomeof the transaction.
final public synchronized  Xid[]recover(int flag)
     Obtain a list of prepared transaction branches from a resource manager.
final public synchronized  voidrollback(Xid xid)
    
public  booleansetTransactionTimeout(int seconds)
     Set the current transaction timeout value for this XAResource instance.
final public synchronized  voidstart(Xid xid, int flags)
     Start work on behalf of a transaction branch specified in xid If TMJOIN is specified, the start is for joining a transaction previously seen by the resource manager.


Constructor Detail
EmbedXAResource
EmbedXAResource(EmbedPooledConnection con, ResourceAdapter ra)(Code)




Method Detail
commit
final public synchronized void commit(Xid xid, boolean onePhase) throws XAException(Code)
Commit the global transaction specified by xid.
Parameters:
  xid - A global transaction identifier
Parameters:
  onePhase - If true, the resource manager should use a one-phasecommit protocol to commit the work done on behalf of xid.
exception:
  XAException - An error has occurred. Possible XAExceptions areXA_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 transaction andthe paramether onePhase is set to true, the resource manager may throw one of the XA_RB* exceptions. Upon return, theresource manager has rolled back the branch's work and has released all held resources.




end
final public synchronized void end(Xid xid, int flags) throws XAException(Code)
Ends the work performed on behalf of a transaction branch. The resource manager disassociates the XA resource from the transaction branch specified and let the transaction be completed.

If TMSUSPEND is specified in flags, the transaction branch is temporarily suspended in incomplete state. The transaction context is in suspened state and must be resumed via start with TMRESUME specified.

If TMFAIL is specified, the portion of work has failed. The resource manager may mark the transaction as rollback-only

If TMSUCCESS is specified, the portion of work has completed successfully.
Parameters:
  xid - A global transaction identifier that is the same as what wasused previously in the start method.
Parameters:
  flags - One of TMSUCCESS, TMFAIL, or TMSUSPEND
exception:
  XAException - An error has occurred.Possible XAException values are XAER_RMERR, XAER_RMFAILED, XAER_NOTA,XAER_INVAL, XAER_PROTO, or XA_RB*.




forget
final public synchronized void forget(Xid xid) throws XAException(Code)
Tell the resource manager to forget about a heuristically completed transaction branch.
Parameters:
  xid - A global transaction identifier
exception:
  XAException - An error has occurred. Possible exception valuesare XAER_RMERR, XAER_RMFAIL, XAER_NOTA, XAER_INVAL, or XAER_PROTO.



getCurrentXid
Xid getCurrentXid()(Code)
Resturns currently active xid Xid



getTransactionTimeout
public int getTransactionTimeout()(Code)
Obtain the current transaction timeout value set for this XAResource instance. If XAResource.setTransactionTimeout was not use prior to invoking this method, the return value is the default timeout set for the resource manager; otherwise, the value used in the previous setTransactionTimeout call is returned. the transaction timeout value in seconds.



isSameRM
final public synchronized boolean isSameRM(XAResource xares) throws XAException(Code)
This method is called to determine if the resource manager instance represented by the target object is the same as the resouce manager instance represented by the parameter xares.
Parameters:
  xares - An XAResource object whose resource manager instance is tobe compared with the resource manager instance of the target object. true if it's the same RM instance; otherwise false.
exception:
  XAException - An error has occurred. Possible exception valuesare XAER_RMERR, XAER_RMFAIL.



prepare
final public synchronized int prepare(Xid xid) throws XAException(Code)
Ask the resource manager to prepare for a transaction commit of the transaction specified in xid.
Parameters:
  xid - A global transaction identifier A value indicating the resource manager's vote on the outcomeof the transaction. The possible values are: XA_RDONLY or XA_OK. If theresource manager wants to roll back the transaction, it should do so byraising an appropriate XAException in the prepare method.
exception:
  XAException - An error has occurred. Possible exception valuesare: XA_RB*, XAER_RMERR, XAER_RMFAIL, XAER_NOTA, XAER_INVAL, orXAER_PROTO.



recover
final public synchronized Xid[] recover(int flag) throws XAException(Code)
Obtain a list of prepared transaction branches from a resource manager. The transaction manager calls this method during recovery to obtain the list of transaction branches that are currently in prepared or heuristically completed states.
Parameters:
  flag - One of TMSTARTRSCAN, TMENDRSCAN, TMNOFLAGS. TMNOFLAGS mustbe used when no other flags are set in flags. The resource manager returns zero or more XIDs for thetransaction branches that are currently in a prepared or heuristicallycompleted state. If an error occurs during the operation, the resourcemanager should throw the appropriate XAException.
exception:
  XAException - An error has occurred. Possible values areXAER_RMERR, XAER_RMFAIL, XAER_INVAL, and XAER_PROTO.



rollback
final public synchronized void rollback(Xid xid) throws XAException(Code)
Inform the resource manager to roll back work done on behalf of a transaction branch
Parameters:
  xid - A global transaction identifier
exception:
  XAException - - An error has occurred



setTransactionTimeout
public boolean setTransactionTimeout(int seconds)(Code)
Set the current transaction timeout value for this XAResource instance. Once set, this timeout value is effective until setTransactionTimeout is invoked again with a different value. To reset the timeout value to the default value used by the resource manager, set the value to zero. If the timeout operation is performed successfully, the method returns true; otherwise false. If a resource manager does not support transaction timeout value to be set explicitly, this method returns false.
Parameters:
  seconds - the transaction timeout value in seconds. true if transaction timeout value is set successfully;otherwise false.
exception:
  XAException - - An error has occurred. Possible exceptionvalues are XAER_RMERR, XAER_RMFAIL, or XAER_INVAL.



start
final public synchronized void start(Xid xid, int flags) throws XAException(Code)
Start work on behalf of a transaction branch specified in xid If TMJOIN is specified, the start is for joining a transaction previously seen by the resource manager. If TMRESUME is specified, the start is to resume a suspended transaction specified in the parameter xid. If neither TMJOIN nor TMRESUME is specified and the transaction specified by xid has previously been seen by the resource manager, the resource manager throws the XAException exception with XAER_DUPID error code.
Parameters:
  xid - A global transaction identifier to be associated with theresource
Parameters:
  flags - One of TMNOFLAGS, TMJOIN, or TMRESUME
exception:
  XAException - An error has occurred. Possible exceptions areXA_RB*, XAER_RMERR, XAER_RMFAIL, XAER_DUPID, XAER_OUTSIDE, XAER_NOTA,XAER_INVAL, or XAER_PROTO.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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