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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.vfs2.filter;
18  
19  import java.io.Serializable;
20  
21  import org.apache.commons.vfs2.FileFilter;
22  import org.apache.commons.vfs2.FileSelectInfo;
23  
24  /**
25   * A file filter that always returns true.
26   *
27   * @author This code was originally ported from Apache Commons IO File Filter
28   * @see "http://commons.apache.org/proper/commons-io/"
29   * @since 2.4
30   */
31  public class TrueFileFilter implements FileFilter, Serializable {
32  
33      private static final long serialVersionUID = 1L;
34  
35      /**
36       * Singleton instance of true filter.
37       */
38      public static final FileFilter TRUE = new TrueFileFilter();
39  
40      /**
41       * Restrictive constructor.
42       */
43      protected TrueFileFilter() {
44      }
45  
46      /**
47       * Returns true.
48       *
49       * @param fileInfo the file to check (ignored)
50       *
51       * @return Always {@code true}
52       */
53      @Override
54      public boolean accept(final FileSelectInfo fileInfo) {
55          return true;
56      }
57  
58  }