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

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Java | 45 lines | 7 code | 5 blank | 33 comment | 0 complexity | a503c935f1e7faf7a08aed5656f299d0 MD5 | raw file
 1/**
 2 * Licensed to the Apache Software Foundation (ASF) under one
 3 * or more contributor license agreements.  See the NOTICE file
 4 * distributed with this work for additional information
 5 * regarding copyright ownership.  The ASF licenses this file
 6 * to you under the Apache License, Version 2.0 (the
 7 * "License"); you may not use this file except in compliance
 8 * with the License.  You may obtain a copy of the License at
 9 *
10 *     http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18package org.apache.hadoop.hive.serde2.objectinspector;
19
20/**
21 * SettableMapObjectInspector.
22 *
23 */
24public interface SettableMapObjectInspector extends MapObjectInspector {
25
26  /**
27   * Create an empty map.
28   */
29  Object create();
30
31  /**
32   * Add a key-value pair to the map. Return the map.
33   */
34  Object put(Object map, Object key, Object value);
35
36  /**
37   * Remove a key-value pair from the map. Return the map.
38   */
39  Object remove(Object map, Object key);
40
41  /**
42   * Clear the map. Return the map.
43   */
44  Object clear(Object map);
45}