pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / src / java / org / apache / lucene / util / MapBackedSet.java

diff --git a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/util/MapBackedSet.java b/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/util/MapBackedSet.java
deleted file mode 100644 (file)
index 9db05ec..0000000
--- a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/util/MapBackedSet.java
+++ /dev/null
@@ -1,73 +0,0 @@
-package org.apache.lucene.util;
-
-/**
- * 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.Serializable;
-import java.util.AbstractSet;
-import java.util.Iterator;
-import java.util.Map;
-
-/**
- * A Set implementation that wraps an actual Map based
- * implementation.
- * 
- * @lucene.internal
- */
-public final class MapBackedSet<E> extends AbstractSet<E> implements Serializable {
-
-  private static final long serialVersionUID = -6761513279741915432L;
-
-  private final Map<E, Boolean> map;
-
-  /**
-   * Creates a new instance which wraps the specified {@code map}.
-   */
-  public MapBackedSet(Map<E, Boolean> map) {
-    this.map = map;
-  }
-
-  @Override
-  public int size() {
-    return map.size();
-  }
-
-  @Override
-  public boolean contains(Object o) {
-    return map.containsKey(o);
-  }
-
-  @Override
-  public boolean add(E o) {
-    return map.put(o, Boolean.TRUE) == null;
-  }
-
-  @Override
-  public boolean remove(Object o) {
-    return map.remove(o) != null;
-  }
-
-  @Override
-  public void clear() {
-    map.clear();
-  }
-
-  @Override
-  public Iterator<E> iterator() {
-    return map.keySet().iterator();
-  }
-}