/*******************************************************************************
* Copyright (c) 2010-2015 Henshin developers. All rights reserved.
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* TU Berlin, University of Luxembourg, SES S.A.
*******************************************************************************/
/**
*
*/
package de.tub.tfs.henshin.editor.commands;
import java.util.List;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.gef.commands.Command;
/**
* @author nam
*
* @param <T>
* @param <Child_T>
*/
public class SimpleAddEObjectCommand<T extends EObject, Child_T extends EObject>
extends Command {
final protected EStructuralFeature containingFeature;
final protected Child_T newObject;
final protected T parent;
int idx = -1;
/**
* @param model
* @param containingFeature
* @param parent
*/
public SimpleAddEObjectCommand(final Child_T model,
final EStructuralFeature containingFeature, final T parent) {
this.newObject = model;
this.parent = parent;
this.containingFeature = containingFeature;
}
/**
* @param model
* @param containingFeature
* @param parent
*/
public SimpleAddEObjectCommand(final Child_T model,
final EStructuralFeature containingFeature, final T parent,int idx) {
this.newObject = model;
this.parent = parent;
this.containingFeature = containingFeature;
this.idx = idx;
}
/**
* @param model
* @param featureID
* @param parent
*/
public SimpleAddEObjectCommand(final Child_T model, int featureID,
final T parent,int idx) {
this(model, parent.eClass().getEStructuralFeature(featureID), parent);
this.idx = idx;
}
/**
* @param model
* @param featureID
* @param parent
*/
public SimpleAddEObjectCommand(final Child_T model, int featureID,
final T parent) {
this(model, parent.eClass().getEStructuralFeature(featureID), parent);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.gef.commands.Command#canExecute()
*/
@Override
public boolean canExecute() {
return newObject != null && parent != null;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.gef.commands.Command#execute()
*/
@SuppressWarnings("unchecked")
@Override
public void execute() {
if (idx < 0)
((List<Object>) parent.eGet(containingFeature)).add(newObject);
else
((List<Object>) parent.eGet(containingFeature)).add(idx,newObject);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.gef.commands.Command#undo()
*/
@SuppressWarnings("unchecked")
@Override
public void undo() {
((List<Object>) parent.eGet(containingFeature)).remove(newObject);
}
}