/*!
* Copyright 2010 - 2013 Pentaho Corporation.  All rights reserved.
*
* Licensed 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.io.DoubleWritable;
import org.apache.hadoop.hive.serde2.lazy.ByteArrayRef;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.WritableDoubleObjectInspector;

/**
 * LazyBinaryObject for double which takes eight bytes.
 */
public class LazyBinaryDouble extends
    LazyBinaryPrimitive<WritableDoubleObjectInspector, DoubleWritable> {

  LazyBinaryDouble(WritableDoubleObjectInspector oi) {
    super(oi);
    data = new DoubleWritable();
  }

  LazyBinaryDouble(LazyBinaryDouble copy) {
    super(copy);
    data = new DoubleWritable(copy.data.get());
  }

  @Override
  public void init(ByteArrayRef bytes, int start, int length) {
    assert (8 == length);
    data.set(Double.longBitsToDouble(LazyBinaryUtils.byteArrayToLong(bytes
        .getData(), start)));
  }
}