pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / src / java / org / apache / lucene / search / ScoreCachingWrappingScorer.java

diff --git a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/search/ScoreCachingWrappingScorer.java b/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/search/ScoreCachingWrappingScorer.java
deleted file mode 100644 (file)
index c5c58d5..0000000
--- a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/search/ScoreCachingWrappingScorer.java
+++ /dev/null
@@ -1,86 +0,0 @@
-package org.apache.lucene.search;
-
-/**
- * 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;
-
-/**
- * A {@link Scorer} which wraps another scorer and caches the score of the
- * current document. Successive calls to {@link #score()} will return the same
- * result and will not invoke the wrapped Scorer's score() method, unless the
- * current document has changed.<br>
- * This class might be useful due to the changes done to the {@link Collector}
- * interface, in which the score is not computed for a document by default, only
- * if the collector requests it. Some collectors may need to use the score in
- * several places, however all they have in hand is a {@link Scorer} object, and
- * might end up computing the score of a document more than once.
- */
-public class ScoreCachingWrappingScorer extends Scorer {
-
-  private final Scorer scorer;
-  private int curDoc = -1;
-  private float curScore;
-  
-  /** Creates a new instance by wrapping the given scorer. */
-  public ScoreCachingWrappingScorer(Scorer scorer) {
-    super(scorer.getSimilarity(), scorer.weight);
-    this.scorer = scorer;
-  }
-
-  @Override
-  protected boolean score(Collector collector, int max, int firstDocID) throws IOException {
-    return scorer.score(collector, max, firstDocID);
-  }
-
-  @Override
-  public Similarity getSimilarity() {
-    return scorer.getSimilarity();
-  }
-  
-  @Override
-  public float score() throws IOException {
-    int doc = scorer.docID();
-    if (doc != curDoc) {
-      curScore = scorer.score();
-      curDoc = doc;
-    }
-    
-    return curScore;
-  }
-
-  @Override
-  public int docID() {
-    return scorer.docID();
-  }
-
-  @Override
-  public int nextDoc() throws IOException {
-    return scorer.nextDoc();
-  }
-  
-  @Override
-  public void score(Collector collector) throws IOException {
-    scorer.score(collector);
-  }
-  
-  @Override
-  public int advance(int target) throws IOException {
-    return scorer.advance(target);
-  }
-  
-}