001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.commons.collections; 018 019 import java.util.Collection; 020 021 /** 022 * Defines a collection that is bounded in size. 023 * <p> 024 * The size of the collection can vary, but it can never exceed a preset 025 * maximum number of elements. This interface allows the querying of details 026 * associated with the maximum number of elements. 027 * 028 * @see CollectionUtils#isFull 029 * @see CollectionUtils#maxSize 030 * 031 * @since Commons Collections 3.0 032 * @version $Revision: 646777 $ $Date: 2008-04-10 13:33:15 +0100 (Thu, 10 Apr 2008) $ 033 * 034 * @author Herve Quiroz 035 * @author Stephen Colebourne 036 */ 037 public interface BoundedCollection extends Collection { 038 039 /** 040 * Returns true if this collection is full and no new elements can be added. 041 * 042 * @return <code>true</code> if the collection is full 043 */ 044 boolean isFull(); 045 046 /** 047 * Gets the maximum size of the collection (the bound). 048 * 049 * @return the maximum number of elements the collection can hold 050 */ 051 int maxSize(); 052 053 }