/***********************************************************************************************************************
*
* Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
*
* 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 eu.stratosphere.api.common.typeutils.base;
import eu.stratosphere.api.common.typeutils.TypeSerializer;
import eu.stratosphere.core.memory.DataInputView;
import eu.stratosphere.core.memory.DataOutputView;
import java.io.IOException;
public class DoubleSerializer extends TypeSerializer<Double> {
private static final long serialVersionUID = 1L;
public static final DoubleSerializer INSTANCE = new DoubleSerializer();
private static final Double ZERO = Double.valueOf(0);
@Override
public boolean isImmutableType() {
return true;
}
@Override
public boolean isStateful() {
return false;
}
@Override
public Double createInstance() {
return ZERO;
}
@Override
public Double copy(Double from, Double reuse) {
return from;
}
@Override
public int getLength() {
return 8;
}
@Override
public void serialize(Double record, DataOutputView target) throws IOException {
target.writeDouble(record.doubleValue());
}
@Override
public Double deserialize(Double reuse, DataInputView source) throws IOException {
return Double.valueOf(source.readDouble());
}
@Override
public void copy(DataInputView source, DataOutputView target) throws IOException {
target.writeDouble(source.readDouble());
}
}