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Java > Open Source Codes > org > apache > lucene > analysis > Tokenizer


1 package org.apache.lucene.analysis;
2
3 /**
4  * Copyright 2004 The Apache Software Foundation
5  *
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18
19 import java.io.Reader JavaDoc;
20 import java.io.IOException JavaDoc;
21
22 /** A Tokenizer is a TokenStream whose input is a Reader.
23   <p>
24   This is an abstract class.
25  */
26
27 public abstract class Tokenizer extends TokenStream {
28   /** The text source for this Tokenizer. */
29   protected Reader JavaDoc input;
30
31   /** Construct a tokenizer with null input. */
32   protected Tokenizer() {}
33
34   /** Construct a token stream processing the given input. */
35   protected Tokenizer(Reader JavaDoc input) {
36     this.input = input;
37   }
38
39   /** By default, closes the input Reader. */
40   public void close() throws IOException JavaDoc {
41     input.close();
42   }
43 }
44
45
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