org.eclipse.persistence.sessions.coordination
Class Command

java.lang.Object
  org.eclipse.persistence.sessions.coordination.Command

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

MergeChangeSetCommand

public abstract class Command
extends java.lang.Object
implements java.io.Serializable

Purpose: Provide an extendable framework class for a Command object that can be remotely executed.

Description: Is the root command class from which all other remotely executable commands must extend. A Command is invoked by calling propagateCommand() on a local CommandManager, and is executed on each remote service by each remote CommandManager invoking processCommand() on its local

See Also:

CommandManager, CommandProcessor, Serialized Form

Author:

Steven Vo

Since:

OracleAS TopLink 10g (9.0.4)

Constructor Summary

Command()

Method Summary

abstract void	executeWithSession(org.eclipse.persistence.internal.sessions.AbstractSession session) INTERNAL: If the CommandProcessor is a TopLink session then this method will get executed.
ServiceId	getServiceId() PUBLIC: Return the service identifier of the service where the command originated
boolean	isInternalCommand() INTERNAL: Determine whether this command is public or internal to TopLink.
void	setServiceId(ServiceId newServiceId) ADVANCED: Set the service identifier of the service where the command originated

Methods inherited from class java.lang.Object

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

Constructor Detail

Command

public Command()

Method Detail

executeWithSession

public abstract void executeWithSession(org.eclipse.persistence.internal.sessions.AbstractSession session)

INTERNAL: If the CommandProcessor is a TopLink session then this method will get executed.

Parameters:

session - The session that can be used to execute the command on.

getServiceId

public ServiceId getServiceId()

PUBLIC: Return the service identifier of the service where the command originated

Returns:

The unique identifier of the sending RCM service

setServiceId

public void setServiceId(ServiceId newServiceId)

ADVANCED: Set the service identifier of the service where the command originated

Parameters:

newServiceId - The unique identifier of the sending RCM service

isInternalCommand

public boolean isInternalCommand()

INTERNAL: Determine whether this command is public or internal to TopLink. User commands must return false.