pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / grouping / src / java / org / apache / lucene / search / grouping / TermAllGroupsCollector.java

diff --git a/lucene-java-3.4.0/lucene/contrib/grouping/src/java/org/apache/lucene/search/grouping/TermAllGroupsCollector.java b/lucene-java-3.4.0/lucene/contrib/grouping/src/java/org/apache/lucene/search/grouping/TermAllGroupsCollector.java
deleted file mode 100644 (file)
index 2494276..0000000
--- a/lucene-java-3.4.0/lucene/contrib/grouping/src/java/org/apache/lucene/search/grouping/TermAllGroupsCollector.java
+++ /dev/null
@@ -1,109 +0,0 @@
-package org.apache.lucene.search.grouping;
-
-/*
- * 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 org.apache.lucene.index.IndexReader;
-import org.apache.lucene.search.FieldCache;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-
-/**
- * A collector that collects all groups that match the
- * query. Only the group value is collected, and the order
- * is undefined.  This collector does not determine
- * the most relevant document of a group.
- *
- * <p/>
- * Implementation detail: an int hash set (SentinelIntSet)
- * is used to detect if a group is already added to the
- * total count.  For each segment the int set is cleared and filled
- * with previous counted groups that occur in the new
- * segment.
- *
- * @lucene.experimental
- */
-public class TermAllGroupsCollector extends AbstractAllGroupsCollector<String> {
-
-  private static final int DEFAULT_INITIAL_SIZE = 128;
-
-  private final String groupField;
-  private final SentinelIntSet ordSet;
-  private final List<String> groups;
-
-  private FieldCache.StringIndex index;
-
-  /**
-   * Expert: Constructs a {@link AbstractAllGroupsCollector}
-   *
-   * @param groupField  The field to group by
-   * @param initialSize The initial allocation size of the
-   *                    internal int set and group list
-   *                    which should roughly match the total
-   *                    number of expected unique groups. Be aware that the
-   *                    heap usage is 4 bytes * initialSize.
-   */
-  public TermAllGroupsCollector(String groupField, int initialSize) {
-    ordSet = new SentinelIntSet(initialSize, -1);
-    groups = new ArrayList<String>(initialSize);
-    this.groupField = groupField;
-  }
-
-  /**
-   * Constructs a {@link AbstractAllGroupsCollector}. This sets the
-   * initial allocation size for the internal int set and group
-   * list to 128.
-   *
-   * @param groupField The field to group by
-   */
-  public TermAllGroupsCollector(String groupField) {
-    this(groupField, DEFAULT_INITIAL_SIZE);
-  }
-
-  public void collect(int doc) throws IOException {
-    int key = index.order[doc];
-    if (!ordSet.exists(key)) {
-      ordSet.put(key);
-      String term = key == 0 ? null : index.lookup[key];
-      groups.add(term);
-    }
-  }
-
-  /**
-   * {@inheritDoc}
-   */
-  public Collection<String> getGroups() {
-    return groups;
-  }
-
-  public void setNextReader(IndexReader reader, int docBase) throws IOException {
-    index = FieldCache.DEFAULT.getStringIndex(reader, groupField);
-
-    // Clear ordSet and fill it with previous encountered groups that can occur in the current segment.
-    ordSet.clear();
-    for (String countedGroup : groups) {
-      int ord = index.binarySearchLookup(countedGroup);
-      if (ord >= 0) {
-        ordSet.put(ord);
-      }
-    }
-  }
-
-}