pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / analyzers / common / src / java / org / apache / lucene / analysis / nl / DutchStemFilter.java

diff --git a/lucene-java-3.4.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/nl/DutchStemFilter.java b/lucene-java-3.4.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/nl/DutchStemFilter.java
deleted file mode 100644 (file)
index 74c2749..0000000
--- a/lucene-java-3.4.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/nl/DutchStemFilter.java
+++ /dev/null
@@ -1,140 +0,0 @@
-package org.apache.lucene.analysis.nl;
-
-/**
- * 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.
- */
-
-import java.io.IOException;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-
-import org.apache.lucene.analysis.KeywordMarkerFilter;// for javadoc
-import org.apache.lucene.analysis.TokenFilter;
-import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.snowball.SnowballFilter;
-import org.apache.lucene.analysis.tokenattributes.KeywordAttribute;
-import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
-
-/**
- * A {@link TokenFilter} that stems Dutch words. 
- * <p>
- * It supports a table of words that should
- * not be stemmed at all. The stemmer used can be changed at runtime after the
- * filter object is created (as long as it is a {@link DutchStemmer}).
- * </p>
- * <p>
- * To prevent terms from being stemmed use an instance of
- * {@link KeywordMarkerFilter} or a custom {@link TokenFilter} that sets
- * the {@link KeywordAttribute} before this {@link TokenStream}.
- * </p>
- * @see KeywordMarkerFilter
- * @deprecated Use {@link SnowballFilter} with 
- * {@link org.tartarus.snowball.ext.DutchStemmer} instead, which has the
- * same functionality. This filter will be removed in Lucene 5.0
- */
-@Deprecated
-public final class DutchStemFilter extends TokenFilter {
-  /**
-   * The actual token in the input stream.
-   */
-  private DutchStemmer stemmer = new DutchStemmer();
-  private Set<?> exclusions = null;
-  
-  private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
-  private final KeywordAttribute keywordAttr = addAttribute(KeywordAttribute.class);
-
-  public DutchStemFilter(TokenStream _in) {
-    super(_in);
-  }
-
-  /**
-   * Builds a DutchStemFilter that uses an exclusion table.
-   * @deprecated use {@link KeywordAttribute} with {@link KeywordMarkerFilter} instead.
-   */
-  @Deprecated
-  public DutchStemFilter(TokenStream _in, Set<?> exclusiontable) {
-    this(_in);
-    exclusions = exclusiontable;
-  }
-  
-  /**
-   * @param stemdictionary Dictionary of word stem pairs, that overrule the algorithm
-   */
-  public DutchStemFilter(TokenStream _in,  Map<?,?> stemdictionary) {
-    this(_in);
-    stemmer.setStemDictionary(stemdictionary);
-  }
-
-  /**
-   * @param stemdictionary Dictionary of word stem pairs, that overrule the algorithm
-   * @deprecated use {@link KeywordAttribute} with {@link KeywordMarkerFilter} instead.
-   */
-  @Deprecated
-  public DutchStemFilter(TokenStream _in, Set<?> exclusiontable, Map<?,?> stemdictionary) {
-    this(_in, exclusiontable);
-    stemmer.setStemDictionary(stemdictionary);
-  }
-
-  /**
-   * Returns the next token in the stream, or null at EOS
-   */
-  @Override
-  public boolean incrementToken() throws IOException {
-    if (input.incrementToken()) {
-      final String term = termAtt.toString();
-
-      // Check the exclusion table.
-      if (!keywordAttr.isKeyword() && (exclusions == null || !exclusions.contains(term))) {
-        final String s = stemmer.stem(term);
-        // If not stemmed, don't waste the time adjusting the token.
-        if ((s != null) && !s.equals(term))
-          termAtt.setEmpty().append(s);
-      }
-      return true;
-    } else {
-      return false;
-    }
-  }
-
-  /**
-   * Set a alternative/custom {@link DutchStemmer} for this filter.
-   */
-  public void setStemmer(DutchStemmer stemmer) {
-    if (stemmer != null) {
-      this.stemmer = stemmer;
-    }
-  }
-
-  /**
-   * Set an alternative exclusion list for this filter.
-   * @deprecated use {@link KeywordAttribute} with {@link KeywordMarkerFilter} instead.
-   */
-  @Deprecated
-  public void setExclusionTable(HashSet<?> exclusiontable) {
-    exclusions = exclusiontable;
-  }
-
-  /**
-   * Set dictionary for stemming, this dictionary overrules the algorithm,
-   * so you can correct for a particular unwanted word-stem pair.
-   */
-  public void setStemDictionary(HashMap<?,?> dict) {
-    if (stemmer != null)
-      stemmer.setStemDictionary(dict);
-  }
-}
\ No newline at end of file