org.eclipse.persistence.sessions.coordination
Class Command

java.lang.Object
  extended by org.eclipse.persistence.sessions.coordination.Command
All Implemented Interfaces:
Serializable
Direct Known Subclasses:
MergeChangeSetCommand

public abstract class Command
extends Object
implements 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

Since:
OracleAS TopLink 10g (9.0.4)
Author:
Steven Vo
See Also:
CommandManager, CommandProcessor, Serialized Form

Constructor Summary
Command()
           
 
Method Summary
abstract  void executeWithSession(org.eclipse.persistence.internal.sessions.AbstractSession session)
          INTERNAL: If the CommandProcessor is a EclipseLink 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 EclipseLink.
 void setServiceId(ServiceId newServiceId)
          ADVANCED: Set the service identifier of the service where the command originated
 
Methods inherited from class java.lang.Object
equals, 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 EclipseLink 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 EclipseLink. User commands must return false.