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

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Java | 50 lines | 24 code | 6 blank | 20 comment | 2 complexity | c0cd9d146e186d7a4baf475ff388bafe 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.lazy.objectinspector.primitive;
19
20import org.apache.hadoop.hive.serde2.io.ByteWritable;
21import org.apache.hadoop.hive.serde2.lazy.LazyByte;
22import org.apache.hadoop.hive.serde2.objectinspector.primitive.ByteObjectInspector;
23import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorUtils;
24
25/**
26 * A WritableByteObjectInspector inspects a ByteWritable Object.
27 */
28public class LazyByteObjectInspector extends
29    AbstractPrimitiveLazyObjectInspector<ByteWritable> implements
30    ByteObjectInspector {
31
32  LazyByteObjectInspector() {
33    super(PrimitiveObjectInspectorUtils.byteTypeEntry);
34  }
35
36  @Override
37  public byte get(Object o) {
38    return getPrimitiveWritableObject(o).get();
39  }
40
41  @Override
42  public Object copyObject(Object o) {
43    return o == null ? null : new LazyByte((LazyByte) o);
44  }
45
46  @Override
47  public Object getPrimitiveJavaObject(Object o) {
48    return o == null ? null : Byte.valueOf(get(o));
49  }
50}