// Copyright 2012 Georg-August-Universität Göttingen, Germany // // 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 de.ugoe.cs.autoquest.usability.util; import java.util.Collections; import java.util.List; import org.apache.commons.lang.StringUtils; import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskTreeNode; import de.ugoe.cs.autoquest.tasktrees.treeifc.NodeVisitor; /** *
* TODO comment *
* * @author Alexander Deicke */ public class NullNode implements ITaskTreeNode { /* (non-Javadoc) * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskTreeNode#getName() */ public String getName() { return StringUtils.EMPTY; } /* (non-Javadoc) * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskTreeNode#getDescription() */ public String getDescription() { return StringUtils.EMPTY; } /* (non-Javadoc) * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskTreeNode#getChildren() */ public List