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 package org.apache.commons.collections.primitives.decorators; 18 19 import java.io.Serializable; 20 21 import org.apache.commons.collections.primitives.LongList; 22 23 /** 24 * 25 * @since Commons Primitives 1.0 26 * @version $Revision: 480463 $ $Date: 2006-11-29 03:15:23 -0500 (Wed, 29 Nov 2006) $ 27 * 28 * @author Rodney Waldhoff 29 */ 30 public final class UnmodifiableLongList extends BaseUnmodifiableLongList implements Serializable { 31 UnmodifiableLongList(LongList list) { 32 this.proxied = list; 33 } 34 35 public static final LongList wrap(LongList list) { 36 if(null == list) { 37 return null; 38 } else if(list instanceof UnmodifiableLongList) { 39 return list; 40 } else if(list instanceof Serializable) { 41 return new UnmodifiableLongList(list); 42 } else { 43 return new NonSerializableUnmodifiableLongList(list); 44 } 45 } 46 47 protected LongList getProxiedList() { 48 return proxied; 49 } 50 51 private LongList proxied = null; 52 }