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SOLR-763 -- Add support for Lucene's PositionFilter 

git-svn-id: https://svn.apache.org/repos/asf/lucene/solr/trunk@739247 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Shalin Shekhar Mangar 2009-01-30 11:38:23 +00:00
parent 8da6192f6b
commit ffb4b37e8d
2 changed files with 47 additions and 0 deletions
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2
CHANGES.txt
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@ -141,6 +141,8 @@ New Features
30. SOLR-865: Adding support for document updates in binary format and corresponding support in Solrj client.
(Noble Paul via shalin)
31. SOLR-763: Add support for Lucene's PositionFilter (Mck SembWever via shalin)
Optimizations
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45
src/java/org/apache/solr/analysis/PositionFilterFactory.java Normal file
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@ -0,0 +1,45 @@
/**
* 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.
*/
package org.apache.solr.analysis;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.position.PositionFilter;
import java.util.Map;
/**
* Set the positionIncrement of all tokens to the "positionIncrement", except the first return token which retains its
* original positionIncrement value. The default positionIncrement value is zero.
*
* @version $Id$
* @see org.apache.lucene.analysis.position.PositionFilter
* @since solr 1.4
*/
public class PositionFilterFactory extends BaseTokenFilterFactory {
private int positionIncrement;
public void init(Map<String, String> args) {
super.init(args);
positionIncrement = getInt("positionIncrement", 0);
}
public PositionFilter create(TokenStream input) {
return new PositionFilter(input, positionIncrement);
}
}