org.eclipse.emf.mapping.command
Class InitializeCopyOverrideCommand

java.lang.Object
  extended by org.eclipse.emf.common.command.AbstractCommand
      extended by org.eclipse.emf.mapping.command.InitializeCopyOverrideCommand
All Implemented Interfaces:
Command
Direct Known Subclasses:
Ecore2EcoreEditor.Ecore2EcoreInitializeCopyOverrideCommand

public class InitializeCopyOverrideCommand
extends AbstractCommand

This command overrides the InitializeCopyCommand for cross-domain copies. This implementation is a no-op unless the objects are suitable ECore classes, in which case it copies the name and possibly the eType. Application specific subclasses should override execute() to complete the initialization, if necessary.


Nested Class Summary
 
Nested classes/interfaces inherited from class org.eclipse.emf.common.command.AbstractCommand
AbstractCommand.NonDirtying
 
Field Summary
protected  InitializeCopyCommand initializeCommand
          This is command we're overriding
protected  MappingDomain mappingDomain
          This keeps track of the mapping domain in which the command operates.
 
Fields inherited from class org.eclipse.emf.common.command.AbstractCommand
description, isExecutable, isPrepared, label
 
Constructor Summary
InitializeCopyOverrideCommand(MappingDomain domain, InitializeCopyCommand initializeCommand)
          This creates a command instance that initializes a copied object
 
Method Summary
 void execute()
          Performs the command activity required for the effect.
 java.util.Collection<?> getAffectedObjects()
          Returns an empty list.
 java.util.Collection<?> getResult()
          Returns an empty list.
protected  boolean prepare()
          Called at most once in AbstractCommand.canExecute() to give the command an opportunity to ready itself for execution.
 void redo()
          Performs the command activity required to redo the effect after undoing the effect.
 java.lang.String toString()
          This gives an abbreviated name using this object's own class' name, without package qualification, followed by a space separated list of field:value pairs.
 void undo()
          Throws a runtime exception.
 
Methods inherited from class org.eclipse.emf.common.command.AbstractCommand
canExecute, canUndo, chain, dispose, getDescription, getLabel, setDescription, setLabel
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

mappingDomain

protected MappingDomain mappingDomain
This keeps track of the mapping domain in which the command operates.


initializeCommand

protected InitializeCopyCommand initializeCommand
This is command we're overriding

Constructor Detail

InitializeCopyOverrideCommand

public InitializeCopyOverrideCommand(MappingDomain domain,
                                     InitializeCopyCommand initializeCommand)
This creates a command instance that initializes a copied object

Method Detail

prepare

protected boolean prepare()
Description copied from class: AbstractCommand
Called at most once in AbstractCommand.canExecute() to give the command an opportunity to ready itself for execution. The returned value is stored in AbstractCommand.canExecute(). In other words, you can override this method to initialize and to yield a cached value for the all subsequent calls to canExecute.

Overrides:
prepare in class AbstractCommand
Returns:
whether the command is executable.

execute

public void execute()
Description copied from interface: Command
Performs the command activity required for the effect. The effect of calling execute when canExecute returns false, or when canExecute hasn't been called, is undefined.


undo

public void undo()
Description copied from class: AbstractCommand
Throws a runtime exception.

Specified by:
undo in interface Command
Overrides:
undo in class AbstractCommand

redo

public void redo()
Description copied from interface: Command
Performs the command activity required to redo the effect after undoing the effect. The effect, if any, of calling redo before undo is called is undefined. Note that if you implement redo to call execute then any derived class will be restricted by that decision also.


getResult

public java.util.Collection<?> getResult()
Description copied from class: AbstractCommand
Returns an empty list.

Specified by:
getResult in interface Command
Overrides:
getResult in class AbstractCommand
Returns:
an empty list.

getAffectedObjects

public java.util.Collection<?> getAffectedObjects()
Description copied from class: AbstractCommand
Returns an empty list.

Specified by:
getAffectedObjects in interface Command
Overrides:
getAffectedObjects in class AbstractCommand
Returns:
an empty list.

toString

public java.lang.String toString()
This gives an abbreviated name using this object's own class' name, without package qualification, followed by a space separated list of field:value pairs.

Overrides:
toString in class AbstractCommand
Returns:
string representation.

Copyright 2001-2006 IBM Corporation and others.
All Rights Reserved.