1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 package org.apache.bcel.util; 19 20 import java.util.LinkedList; 21 22 import org.apache.bcel.classfile.JavaClass; 23 24 /** 25 * Utility class implementing a (typesafe) queue of JavaClass 26 * objects. 27 * 28 * @version $Id$ 29 */ 30 public class ClassQueue { 31 32 /** 33 * @deprecated (since 6.0) will be made private; do not access 34 */ 35 @Deprecated 36 protected LinkedList<JavaClass> vec = new LinkedList<>(); // TODO not used externally 37 38 enqueue( final JavaClass clazz )39 public void enqueue( final JavaClass clazz ) { 40 vec.addLast(clazz); 41 } 42 43 dequeue()44 public JavaClass dequeue() { 45 return vec.removeFirst(); 46 } 47 48 empty()49 public boolean empty() { 50 return vec.isEmpty(); 51 } 52 53 54 @Override toString()55 public String toString() { 56 return vec.toString(); 57 } 58 } 59