Lucene.Net
3.0.3
Lucene.Net is a port of the Lucene search engine library, written in C# and targeted at .NET runtime users.
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core
Analysis
TokenFilter.cs
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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namespace
Lucene.Net.Analysis
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{
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/// <summary> A TokenFilter is a TokenStream whose input is another TokenStream.
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/// <p/>
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/// This is an abstract class; subclasses must override <see cref="TokenStream.IncrementToken()" />.
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///
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/// </summary>
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/// <seealso cref="TokenStream">
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/// </seealso>
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public
abstract
class
TokenFilter
:
TokenStream
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{
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/// <summary>The source of tokens for this filter. </summary>
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protected
internal
TokenStream
input;
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private
bool
isDisposed;
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/// <summary>Construct a token stream filtering the given input. </summary>
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protected
internal
TokenFilter
(
TokenStream
input):base(input)
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{
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this.input = input;
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}
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/// <summary>Performs end-of-stream operations, if any, and calls then <c>end()</c> on the
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/// input TokenStream.<p/>
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/// <b>NOTE:</b> Be sure to call <c>super.end()</c> first when overriding this method.
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/// </summary>
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public
override
void
End()
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{
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input.
End
();
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}
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protected
override
void
Dispose(
bool
disposing)
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{
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if
(isDisposed)
return
;
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if
(disposing)
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{
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if
(input != null)
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{
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input.
Close
();
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}
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}
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//input = null;
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isDisposed =
true
;
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}
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/// <summary>Reset the filter as well as the input TokenStream. </summary>
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public
override
void
Reset()
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{
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input.
Reset
();
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}
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}
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}
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