| /* |
| * 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.uima.internal.util; |
| |
| import java.util.Vector; |
| |
| /** |
| * A simple graph class. |
| * |
| * @see org.apache.uima.internal.util.GraphNode |
| */ |
| public class Graph { |
| |
| protected GraphNode root; |
| |
| /** @return The root of the graph. */ |
| public GraphNode getRoot() { |
| return this.root; |
| } |
| |
| /** |
| * Set the root of the graph. |
| * |
| * @param root |
| * The root node. |
| */ |
| public void setRoot(GraphNode root) { |
| this.root = root; |
| } |
| |
| protected static int getNodeCode(GraphNode n, Vector nodes) { |
| int max = nodes.size(); |
| for (int i = 0; i < max; i++) { |
| if (n == nodes.get(i)) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| public static void collectNodes(GraphNode n, Vector nodes) { |
| if (getNodeCode(n, nodes) >= 0) { |
| return; |
| } |
| nodes.add(n); |
| int max = n.getNbrSucc(); |
| for (int i = 0; i < max; i++) { |
| collectNodes(n.getSuccessor(i), nodes); |
| } |
| } |
| |
| } |