taverna-edits-api/src/main/java/org/apache/taverna/workflow/edits/AddIterationStrategyEdit.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.taverna.workflow.edits;

import org.apache.taverna.scufl2.api.iterationstrategy.IterationStrategyStack;
import org.apache.taverna.scufl2.api.iterationstrategy.IterationStrategyTopNode;

/**
 * Adds an IterationStrategyTopNode to an IterationStrategyStack.
 *
 * @author David Withers
 */
public class AddIterationStrategyEdit extends AbstractEdit<IterationStrategyStack> {
	private final IterationStrategyTopNode iterationStrategyTopNode;

	public AddIterationStrategyEdit(IterationStrategyStack iterationStrategyStack,
			IterationStrategyTopNode iterationStrategyTopNode) {
		super(iterationStrategyStack);
		this.iterationStrategyTopNode = iterationStrategyTopNode;
	}

	@Override
	public void doEditAction(IterationStrategyStack iterationStrategyStack) {
		iterationStrategyStack.add(iterationStrategyTopNode);
	}

	@Override
	public void undoEditAction(IterationStrategyStack iterationStrategyStack) {
		iterationStrategyStack.remove(iterationStrategyTopNode);
	}
}