| /* |
| * 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> |
| * <p> |
| * A few changes has been made to the static Snowball code and compiled stemmers: |
| * </p> |
| * <ul> |
| * <li>Class SnowballProgram is made abstract and contains new abstract method stem() to avoid reflection in Lucene filter class SnowballFilter.</li> |
| * <li>All use of StringBuffers has been refactored to StringBuilder for speed.</li> |
| * <li>Snowball BSD license header has been added to the Java classes to avoid having RAT adding ASL headers.</li> |
| * </ul> |
| * <p> |
| * See the Snowball <a href ="http://snowball.tartarus.org/">home page</a> for more information about the algorithms. |
| * </p> |
| * |
| * <p> |
| * <b>IMPORTANT NOTICE ON BACKWARDS COMPATIBILITY!</b> |
| * </p> |
| * <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> |
| * <p> |
| * For more information about this issue see: |
| * https://issues.apache.org/jira/browse/LUCENE-1142 |
| * </p> |
| */ |
| package org.apache.lucene.analysis.snowball; |