Runtime

org.eclipse.gmf.runtime.emf.type.core.commands
Class DestroyReferenceCommand

java.lang.Object
  extended by org.eclipse.core.commands.operations.AbstractOperation
      extended by org.eclipse.emf.workspace.AbstractEMFOperation
          extended by org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand
              extended by org.eclipse.gmf.runtime.emf.type.core.commands.EditElementCommand
                  extended by org.eclipse.gmf.runtime.emf.type.core.commands.DestroyReferenceCommand
All Implemented Interfaces:
IUndoableOperation, ICommand, org.eclipse.gmf.runtime.common.core.internal.command.ICommandWithSettableResult

public class DestroyReferenceCommand
extends EditElementCommand

Command to destroy a reference from one element to another.


Constructor Summary
DestroyReferenceCommand(DestroyReferenceRequest request)
          Constructs a new command to destroy a model element.
 
Method Summary
 boolean canExecute()
          Checks that the element to be modified by this command is of the correct kind.
protected  CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info)
          Implemented by subclasses to perform the model changes.
protected  org.eclipse.emf.ecore.EObject getContainer()
          Gets element that contains the reference.
protected  org.eclipse.emf.ecore.EReference getContainingFeature()
          Gets the feature in the container that contains the reference.
protected  org.eclipse.emf.ecore.EObject getReferencedObject()
          Gets the referenced object.
 
Methods inherited from class org.eclipse.gmf.runtime.emf.type.core.commands.EditElementCommand
getAffectedFiles, getEClass, getEClassToEdit, getElementToEdit, getRequest, isOK, setEClass, setElementToEdit
 
Methods inherited from class org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand
aggregateStatuses, cleanup, compose, didRedo, didUndo, doExecute, doRedo, doUndo, getAffectedFiles, getCommandResult, getWorkspaceFiles, getWorkspaceFiles, internalSetResult, reduce, setResult
 
Methods inherited from class org.eclipse.emf.workspace.AbstractEMFOperation
canRedo, canUndo, didCommit, dispose, execute, getChange, getEditingDomain, getOptions, redo, undo
 
Methods inherited from class org.eclipse.core.commands.operations.AbstractOperation
addContext, getContexts, getLabel, hasContext, removeContext, setLabel, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.eclipse.gmf.runtime.common.core.command.ICommand
setLabel
 
Methods inherited from interface org.eclipse.core.commands.operations.IUndoableOperation
addContext, canRedo, canUndo, dispose, execute, getContexts, getLabel, hasContext, redo, removeContext, undo
 

Constructor Detail

DestroyReferenceCommand

public DestroyReferenceCommand(DestroyReferenceRequest request)
Constructs a new command to destroy a model element.

Parameters:
request - the destroy element requestO
Method Detail

doExecuteWithResult

protected CommandResult doExecuteWithResult(IProgressMonitor monitor,
                                            IAdaptable info)
                                     throws ExecutionException
Description copied from class: AbstractTransactionalCommand
Implemented by subclasses to perform the model changes. These changes are applied by manipulation of the EMF metamodel's API, not by executing commands on the editing domain's command stack.

Specified by:
doExecuteWithResult in class AbstractTransactionalCommand
Parameters:
monitor - the progress monitor provided by the operation history
info - the adaptable provided by the operation history
Returns:
the result of the execution
Throws:
ExecutionException - if, for some reason, I fail to complete the operation

getContainer

protected org.eclipse.emf.ecore.EObject getContainer()
Gets element that contains the reference.

Returns:
the element that contains the reference

getContainingFeature

protected org.eclipse.emf.ecore.EReference getContainingFeature()
Gets the feature in the container that contains the reference.

Returns:
the feature in the container that contains the reference.

getReferencedObject

protected org.eclipse.emf.ecore.EObject getReferencedObject()
Gets the referenced object.

Returns:
the referenced object.

canExecute

public boolean canExecute()
Description copied from class: EditElementCommand
Checks that the element to be modified by this command is of the correct kind.

Specified by:
canExecute in interface IUndoableOperation
Overrides:
canExecute in class EditElementCommand

Runtime

Guidelines for using Eclipse APIs.

Copyright (c) IBM Corp., Borland Software Corp., and others 2005,2006. All rights reserved.