001// ***************************************************************************************************************************
002// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.  See the NOTICE file *
003// * distributed with this work for additional information regarding copyright ownership.  The ASF licenses this file        *
004// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance            *
005// * with the License.  You may obtain a copy of the License at                                                              *
006// *                                                                                                                         *
007// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
008// *                                                                                                                         *
009// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an  *
010// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the        *
011// * specific language governing permissions and limitations under the License.                                              *
012// ***************************************************************************************************************************
013package org.apache.juneau.internal;
014
015import java.util.*;
016
017/**
018 * {@link TreeSet} for {@link Class} objects.
019 */
020public class ClassTreeSet extends TreeSet<Class<?>> {
021
022   private static final long serialVersionUID = 1L;
023
024   private static final Comparator<Class<?>> COMPARATOR = new Comparator<Class<?>>() {
025      @Override
026      public int compare(Class<?> o1, Class<?> o2) {
027         return o1.getName().compareTo(o2.getName());
028      }
029   };
030
031   /**
032    * Constructor.
033    */
034   public ClassTreeSet() {
035      super(COMPARATOR);
036   }
037
038   /**
039    * Constructor.
040    *
041    * @param c Initial contents of set.
042    */
043   public ClassTreeSet(Collection<Class<?>> c) {
044      super(COMPARATOR);
045      addAll(c);
046   }
047}