pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / facet / src / java / org / apache / lucene / util / encoding / DGapIntEncoder.java

diff --git a/lucene-java-3.4.0/lucene/contrib/facet/src/java/org/apache/lucene/util/encoding/DGapIntEncoder.java b/lucene-java-3.4.0/lucene/contrib/facet/src/java/org/apache/lucene/util/encoding/DGapIntEncoder.java
deleted file mode 100644 (file)
index 43bcb4e..0000000
--- a/lucene-java-3.4.0/lucene/contrib/facet/src/java/org/apache/lucene/util/encoding/DGapIntEncoder.java
+++ /dev/null
@@ -1,69 +0,0 @@
-package org.apache.lucene.util.encoding;
-
-import java.io.IOException;
-import java.io.OutputStream;
-
-/**
- * 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.
- */
-
-/**
- * An {@link IntEncoderFilter} which encodes the gap between the given values,
- * rather than the values themselves. This encoder usually yields better
- * encoding performance space-wise (i.e., the final encoded values consume less
- * space) if the values are 'close' to each other.
- * <p>
- * <b>NOTE:</b> this encoder assumes the values are given to
- * {@link #encode(int)} in an ascending sorted manner, which ensures only
- * positive values are encoded and thus yields better performance. If you are
- * not sure whether the values are sorted or not, it is possible to chain this
- * encoder with {@link SortingIntEncoder} to ensure the values will be
- * sorted before encoding.
- * 
- * @lucene.experimental
- */
-public class DGapIntEncoder extends IntEncoderFilter {
-
-  private int prev = 0;
-
-  /** Initializes with the given encoder. */
-  public DGapIntEncoder(IntEncoder encoder) {
-    super(encoder);
-  }
-
-  @Override
-  public void encode(int value) throws IOException {
-    encoder.encode(value - prev);
-    prev = value;
-  }
-
-  @Override
-  public IntDecoder createMatchingDecoder() {
-    return new DGapIntDecoder(encoder.createMatchingDecoder());
-  }
-  
-  @Override
-  public void reInit(OutputStream out) {
-    super.reInit(out);
-    prev = 0;
-  }
-
-  @Override
-  public String toString() {
-    return "DGap (" + encoder.toString() + ")";
-  }
-  
-}