/*
* 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 com.facebook.presto.operator.aggregation.state;
import com.facebook.presto.spi.block.Block;
import com.facebook.presto.spi.block.BlockBuilder;
import com.facebook.presto.spi.function.AccumulatorStateSerializer;
import com.facebook.presto.spi.type.Type;
import static com.facebook.presto.spi.type.BigintType.BIGINT;
public class NullableLongStateSerializer
implements AccumulatorStateSerializer<NullableLongState>
{
@Override
public Type getSerializedType()
{
return BIGINT;
}
@Override
public void serialize(NullableLongState state, BlockBuilder out)
{
if (state.isNull()) {
out.appendNull();
}
else {
BIGINT.writeLong(out, state.getLong());
}
}
@Override
public void deserialize(Block block, int index, NullableLongState state)
{
state.setNull(false);
state.setLong(BIGINT.getLong(block, index));
}
}