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.io.filefilter; 18 19 import java.io.File; 20 21 /** 22 * A file filter that always returns true. 23 * 24 * @since Commons IO 1.0 25 * @version $Revision: 471628 $ $Date: 2006-11-06 05:06:45 +0100 (Mo, 06 Nov 2006) $ 26 * 27 * @author Stephen Colebourne 28 */ 29 public class TrueFileFilter implements IOFileFilter { 30 31 /** 32 * Singleton instance of true filter. 33 * @since Commons IO 1.3 34 */ 35 public static final IOFileFilter TRUE = new TrueFileFilter(); 36 /** 37 * Singleton instance of true filter. 38 * Please use the identical TrueFileFilter.TRUE constant. 39 * The new name is more JDK 1.5 friendly as it doesn't clash with other 40 * values when using static imports. 41 */ 42 public static final IOFileFilter INSTANCE = TRUE; 43 44 /** 45 * Restrictive consructor. 46 */ 47 protected TrueFileFilter() { 48 } 49 50 /** 51 * Returns true. 52 * 53 * @param file the file to check 54 * @return true 55 */ 56 public boolean accept(File file) { 57 return true; 58 } 59 60 /** 61 * Returns true. 62 * 63 * @param dir the directory to check 64 * @param name the filename 65 * @return true 66 */ 67 public boolean accept(File dir, String name) { 68 return true; 69 } 70 71 }