pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / src / java / org / apache / lucene / index / FieldSortedTermVectorMapper.java

diff --git a/lucene-java-3.5.0/lucene/src/java/org/apache/lucene/index/FieldSortedTermVectorMapper.java b/lucene-java-3.5.0/lucene/src/java/org/apache/lucene/index/FieldSortedTermVectorMapper.java
new file mode 100644 (file)
index 0000000..e329061
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+++ b/lucene-java-3.5.0/lucene/src/java/org/apache/lucene/index/FieldSortedTermVectorMapper.java
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+package org.apache.lucene.index;
+
+import java.util.*;
+
+/**
+ * Copyright 2007 The Apache Software Foundation
+ * <p/>
+ * Licensed 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
+ * <p/>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p/>
+ * 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.
+ */
+
+/**
+ * For each Field, store a sorted collection of {@link TermVectorEntry}s
+ * <p/>
+ * This is not thread-safe.
+ */
+public class FieldSortedTermVectorMapper extends TermVectorMapper{
+  private Map<String,SortedSet<TermVectorEntry>> fieldToTerms = new HashMap<String,SortedSet<TermVectorEntry>>();
+  private SortedSet<TermVectorEntry> currentSet;
+  private String currentField;
+  private Comparator<TermVectorEntry> comparator;
+
+  /**
+   *
+   * @param comparator A Comparator for sorting {@link TermVectorEntry}s
+   */
+  public FieldSortedTermVectorMapper(Comparator<TermVectorEntry> comparator) {
+    this(false, false, comparator);
+  }
+
+
+  public FieldSortedTermVectorMapper(boolean ignoringPositions, boolean ignoringOffsets, Comparator<TermVectorEntry> comparator) {
+    super(ignoringPositions, ignoringOffsets);
+    this.comparator = comparator;
+  }
+
+  @Override
+  public void map(String term, int frequency, TermVectorOffsetInfo[] offsets, int[] positions) {
+    TermVectorEntry entry = new TermVectorEntry(currentField, term, frequency, offsets, positions);
+    currentSet.add(entry);
+  }
+
+  @Override
+  public void setExpectations(String field, int numTerms, boolean storeOffsets, boolean storePositions) {
+    currentSet = new TreeSet<TermVectorEntry>(comparator);
+    currentField = field;
+    fieldToTerms.put(field, currentSet);
+  }
+
+  /**
+   * Get the mapping between fields and terms, sorted by the comparator
+   *
+   * @return A map between field names and {@link java.util.SortedSet}s per field.  SortedSet entries are {@link TermVectorEntry}
+   */
+  public Map<String,SortedSet<TermVectorEntry>> getFieldToTerms() {
+    return fieldToTerms;
+  }
+
+
+  public Comparator<TermVectorEntry> getComparator() {
+    return comparator;
+  }
+}