io.trino.operator.aggregation.AggregationMaskBuilder 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;
import io.trino.spi.Page;
import io.trino.spi.block.Block;
import java.util.Optional;
public interface AggregationMaskBuilder
{
/**
* Create an AggregationMask that only selects positions that pass the specified
* mask block, and do not have null for non-null arguments. The returned mask
* can be further modified if desired, but it should not be used after the next
* call to this method. Internally implementations are allowed to reuse position
* arrays across multiple calls.
*/
AggregationMask buildAggregationMask(Page arguments, Optional optionalMaskBlock);
}