/*
* Copyright 2005 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.eclipse.flow.common.editor.core.command;
import org.drools.eclipse.flow.common.editor.core.ElementContainer;
import org.drools.eclipse.flow.common.editor.core.ElementWrapper;
import org.eclipse.gef.commands.Command;
/**
* A command for adding an element.
*/
public class AddElementCommand extends Command {
private ElementWrapper child;
private ElementContainer parent;
public boolean canExecute() {
return parent.canAddElement(child);
}
public void execute() {
parent.addElement(child);
child.setParent(parent);
}
protected ElementContainer getParent() {
return parent;
}
protected ElementWrapper getChild() {
return child;
}
public void setChild(ElementWrapper newChild) {
child = newChild;
}
public void setParent(ElementContainer newParent) {
parent = newParent;
}
public void undo() {
parent.removeElement(child);
child.setParent(null);
}
}