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