/tags/release-0.0.0-rc0/hive/external/serde/src/java/org/apache/hadoop/hive/serde2/objectinspector/SettableMapObjectInspector.java

/**
 * 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.
 */
package org.apache.hadoop.hive.serde2.objectinspector;

/**
 * SettableMapObjectInspector.
 *
 */
public interface SettableMapObjectInspector extends MapObjectInspector {

  /**
   * Create an empty map.
   */
  Object create();

  /**
   * Add a key-value pair to the map. Return the map.
   */
  Object put(Object map, Object key, Object value);

  /**
   * Remove a key-value pair from the map. Return the map.
   */
  Object remove(Object map, Object key);

  /**
   * Clear the map. Return the map.
   */
  Object clear(Object map);
}