org.objectweb.cjdbc.controller.virtualdatabase.protocol
Class DistributedTransactionMarker

java.lang.Object
  org.objectweb.cjdbc.controller.virtualdatabase.protocol.DistributedTransactionMarker

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

Commit, ReleaseSavepoint, Rollback, RollbackToSavepoint, SetSavepoint

public abstract class DistributedTransactionMarker

extends java.lang.Object

implements java.io.Serializable

This class defines a DistributedTransactionMarker which is used to transport commit/rollback/savepoint type of commands.

Version:

1.0

Author:

Emmanuel Cecchet

See Also:

Serialized Form

Field Summary

protected long

transactionId

Constructor Summary

DistributedTransactionMarker(long transactionId)
Creates a new DistributedTransactionMarker object

Method Summary

boolean	equals(java.lang.Object obj)
abstract java.lang.Object	executeCommand(DistributedRequestManager drm) Code to be executed by the distributed request manager receiving the command.
long	getTransactionId() Returns the transactionId value.
abstract void	scheduleCommand(DistributedRequestManager drm) Schedule the command (i.e. commit or rollback).

Methods inherited from class java.lang.Object

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

Field Detail

transactionId

protected long transactionId

Constructor Detail

DistributedTransactionMarker

public DistributedTransactionMarker(long transactionId)

Creates a new DistributedTransactionMarker object

Parameters:

transactionId - the transaction identifier

Method Detail

scheduleCommand

public abstract void scheduleCommand(DistributedRequestManager drm)
                              throws java.sql.SQLException

Schedule the command (i.e. commit or rollback). This method blocks until the command is scheduled.

Parameters:

drm - a distributed request manager

Throws:

java.sql.SQLException - if an error occurs.

executeCommand

public abstract java.lang.Object executeCommand(DistributedRequestManager drm)
                                         throws java.sql.SQLException

Code to be executed by the distributed request manager receiving the command.

Parameters:

drm - a distributed request manager

Returns:

an Object to be sent back to the caller

Throws:

java.sql.SQLException - if an error occurs.

getTransactionId

public long getTransactionId()

Returns the transactionId value.

Returns:

Returns the transactionId.

equals

public boolean equals(java.lang.Object obj)

See Also:

Object.equals(java.lang.Object)