| /* |
| * 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. |
| */ |
| |
| /** |
| * {@link org.apache.lucene.analysis.TokenFilter} and {@link org.apache.lucene.analysis.Analyzer} |
| * implementations that use Snowball stemmers. |
| * |
| * <p>This project provides pre-compiled version of the Snowball stemmers based on revision 500 of |
| * the Tartarus Snowball repository, together with classes integrating them with the Lucene search |
| * engine. |
| * |
| * <p>A few changes has been made to the static Snowball code and compiled stemmers: |
| * |
| * <ul> |
| * <li>Class SnowballProgram is made abstract and contains new abstract method stem() to avoid |
| * reflection in Lucene filter class SnowballFilter. |
| * <li>All use of StringBuffers has been refactored to StringBuilder for speed. |
| * <li>Snowball BSD license header has been added to the Java classes to avoid having RAT adding |
| * ASL headers. |
| * </ul> |
| * |
| * <p>See the Snowball <a href ="http://snowball.tartarus.org/">home page</a> for more information |
| * about the algorithms. |
| * |
| * <p><b>IMPORTANT NOTICE ON BACKWARDS COMPATIBILITY!</b> |
| * |
| * <p>An index created using the Snowball module in Lucene 2.3.2 and below might not be compatible |
| * with the Snowball module in Lucene 2.4 or greater. |
| * |
| * <p>For more information about this issue see: https://issues.apache.org/jira/browse/LUCENE-1142 |
| */ |
| package org.apache.lucene.analysis.snowball; |