org.apache.hadoop.hive.serde2.lazybinary.LazyBinaryBoolean Maven / Gradle / Ivy
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* 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.lazybinary;
import org.apache.hadoop.hive.serde2.lazy.ByteArrayRef;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.WritableBooleanObjectInspector;
import org.apache.hadoop.io.BooleanWritable;
/**
* LazyBinaryObject for boolean which takes one byte
*
*
* Part of the code is adapted from Apache Harmony Project.
*
* As with the specification, this implementation relied on code laid out in Henry S. Warren, Jr.'s Hacker's
* Delight, (Addison Wesley, 2002) as well as The Aggregate's Magic Algorithms.
*
*
*/
public class LazyBinaryBoolean extends
LazyBinaryPrimitive {
public LazyBinaryBoolean(WritableBooleanObjectInspector oi) {
super(oi);
data = new BooleanWritable();
}
public LazyBinaryBoolean(LazyBinaryBoolean copy) {
super(copy);
data = new BooleanWritable(copy.data.get());
}
@Override
public void init(ByteArrayRef bytes, int start, int length) {
assert (1 == length);
byte val = bytes.getData()[start];
if (val == 0) {
data.set(false);
} else if (val == 1) {
data.set(true);
}
}
}