1 package org.apache.maven.shared.dependency.tree.traversal; 2 3 /* 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 */ 21 22 import org.apache.maven.shared.dependency.tree.DependencyNode; 23 24 /** 25 * Defines a hierarchical visitor for processing dependency node trees. 26 * 27 * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a> 28 * @version $Id: DependencyNodeVisitor.java 661727 2008-05-30 14:21:49Z bentmann $ 29 * @since 1.1 30 */ 31 public interface DependencyNodeVisitor 32 { 33 /** 34 * Starts the visit to the specified dependency node. 35 * 36 * @param node 37 * the dependency node to visit 38 * @return <code>true</code> to visit the specified dependency node's children, <code>false</code> to skip the 39 * specified dependency node's children and proceed to its next sibling 40 */ 41 boolean visit( DependencyNode node ); 42 43 /** 44 * Ends the visit to to the specified dependency node. 45 * 46 * @param node 47 * the dependency node to visit 48 * @return <code>true</code> to visit the specified dependency node's next sibling, <code>false</code> to skip 49 * the specified dependency node's next siblings and proceed to its parent 50 */ 51 boolean endVisit( DependencyNode node ); 52 }