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    1   package org.apache.lucene.queryParser.standard.config;
    2   
    3   /**
    4    * Licensed to the Apache Software Foundation (ASF) under one or more
    5    * contributor license agreements.  See the NOTICE file distributed with
    6    * this work for additional information regarding copyright ownership.
    7    * The ASF licenses this file to You under the Apache License, Version 2.0
    8    * (the "License"); you may not use this file except in compliance with
    9    * the License.  You may obtain a copy of the License at
   10    *
   11    *     http://www.apache.org/licenses/LICENSE-2.0
   12    *
   13    * Unless required by applicable law or agreed to in writing, software
   14    * distributed under the License is distributed on an "AS IS" BASIS,
   15    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   16    * See the License for the specific language governing permissions and
   17    * limitations under the License.
   18    */
   19   
   20   import org.apache.lucene.analysis.Analyzer;
   21   import org.apache.lucene.queryParser.core.config.QueryConfigHandler;
   22   import org.apache.lucene.queryParser.standard.processors.AnalyzerQueryNodeProcessor;
   23   import org.apache.lucene.util.AttributeImpl;
   24   
   25   /**
   26    * This attribute is used by {@link AnalyzerQueryNodeProcessor} processor and
   27    * must be defined in the {@link QueryConfigHandler}. It provides to this
   28    * processor the {@link Analyzer}, if there is one, which will be used to
   29    * analyze the query terms. <br/>
   30    * 
   31    * @see org.apache.lucene.queryParser.standard.config.AnalyzerAttribute
   32    */
   33   public class AnalyzerAttributeImpl extends AttributeImpl 
   34   				implements AnalyzerAttribute {
   35   
   36     private static final long serialVersionUID = -6804760312723049526L;
   37   
   38     private Analyzer analyzer;
   39   
   40     public AnalyzerAttributeImpl() {
   41       analyzer = null; //default value 2.4
   42     }
   43   
   44     public void setAnalyzer(Analyzer analyzer) {
   45       this.analyzer = analyzer;
   46     }
   47   
   48     public Analyzer getAnalyzer() {
   49       return this.analyzer;
   50     }
   51   
   52     @Override
   53     public void clear() {
   54       throw new UnsupportedOperationException();
   55     }
   56   
   57     @Override
   58     public void copyTo(AttributeImpl target) {
   59       throw new UnsupportedOperationException();
   60     }
   61   
   62     @Override
   63     public boolean equals(Object other) {
   64   
   65       if (other instanceof AnalyzerAttributeImpl) {
   66       	AnalyzerAttributeImpl analyzerAttr = (AnalyzerAttributeImpl) other;
   67   
   68         if (analyzerAttr.analyzer == this.analyzer
   69             || (this.analyzer != null && analyzerAttr.analyzer != null && this.analyzer
   70                 .equals(analyzerAttr.analyzer))) {
   71   
   72           return true;
   73   
   74         }
   75   
   76       }
   77   
   78       return false;
   79   
   80     }
   81   
   82     @Override
   83     public int hashCode() {
   84       return (this.analyzer == null) ? 0 : this.analyzer.hashCode();
   85     }
   86   
   87     @Override
   88     public String toString() {
   89       return "<analyzerAttribute analyzer='" + this.analyzer + "'/>";
   90     }
   91   
   92   }

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