ChainableReader


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   */
18  package org.apache.tools.ant.filters;
19  
20  import java.io.Reader  ;
21  
22  /**
23   * Interface indicating that a reader may be chained to another one.
24   *
25   */
26  public interface ChainableReader {
27      /**
28       * Returns a reader with the same configuration as this one,
29       * but filtering input from the specified reader.
30       *
31       * @param rdr the reader which the returned reader should be filtering
32       *
33       * @return a reader with the same configuration as this one, but
34       *         filtering input from the specified reader
35       */
36      Reader   chain(Reader   rdr);
37  }
38

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