io.trino.operator.aggregation.multimapagg.MultimapAggregationState Maven / Gradle / Ivy
/*
* 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 io.trino.operator.aggregation.multimapagg;
import io.trino.spi.block.MapBlockBuilder;
import io.trino.spi.block.ValueBlock;
import io.trino.spi.function.AccumulatorState;
import io.trino.spi.function.AccumulatorStateMetadata;
@AccumulatorStateMetadata(
stateFactoryClass = MultimapAggregationStateFactory.class,
stateSerializerClass = MultimapAggregationStateSerializer.class,
typeParameters = {"K", "V"},
serializedType = "map(K, array(V))")
public interface MultimapAggregationState
extends AccumulatorState
{
void add(ValueBlock keyBlock, int keyPosition, ValueBlock valueBlock, int valuePosition);
void merge(MultimapAggregationState other);
void writeAll(MapBlockBuilder out);
}