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/*
* 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.function.AccumulatorStateFactory;
import io.trino.spi.function.Convention;
import io.trino.spi.function.OperatorDependency;
import io.trino.spi.function.OperatorType;
import io.trino.spi.function.TypeParameter;
import io.trino.spi.type.Type;
import java.lang.invoke.MethodHandle;
import static io.trino.spi.function.InvocationConvention.InvocationArgumentConvention.FLAT;
import static io.trino.spi.function.InvocationConvention.InvocationArgumentConvention.VALUE_BLOCK_POSITION_NOT_NULL;
import static io.trino.spi.function.InvocationConvention.InvocationReturnConvention.BLOCK_BUILDER;
import static io.trino.spi.function.InvocationConvention.InvocationReturnConvention.FAIL_ON_NULL;
import static io.trino.spi.function.InvocationConvention.InvocationReturnConvention.FLAT_RETURN;
import static java.util.Objects.requireNonNull;
public class MultimapAggregationStateFactory
implements AccumulatorStateFactory
{
private final Type keyType;
private final MethodHandle keyReadFlat;
private final MethodHandle keyWriteFlat;
private final MethodHandle keyHashFlat;
private final MethodHandle keyDistinctFlatBlock;
private final MethodHandle keyHashBlock;
private final Type valueType;
private final MethodHandle valueReadFlat;
private final MethodHandle valueWriteFlat;
public MultimapAggregationStateFactory(
@TypeParameter("K") Type keyType,
@OperatorDependency(
operator = OperatorType.READ_VALUE,
argumentTypes = "K",
convention = @Convention(arguments = FLAT, result = BLOCK_BUILDER)) MethodHandle keyReadFlat,
@OperatorDependency(
operator = OperatorType.READ_VALUE,
argumentTypes = "K",
convention = @Convention(arguments = VALUE_BLOCK_POSITION_NOT_NULL, result = FLAT_RETURN)) MethodHandle keyWriteFlat,
@OperatorDependency(
operator = OperatorType.HASH_CODE,
argumentTypes = "K",
convention = @Convention(arguments = FLAT, result = FAIL_ON_NULL)) MethodHandle keyHashFlat,
@OperatorDependency(
operator = OperatorType.IS_DISTINCT_FROM,
argumentTypes = {"K", "K"},
convention = @Convention(arguments = {FLAT, VALUE_BLOCK_POSITION_NOT_NULL}, result = FAIL_ON_NULL)) MethodHandle keyDistinctFlatBlock,
@OperatorDependency(
operator = OperatorType.HASH_CODE,
argumentTypes = "K",
convention = @Convention(arguments = VALUE_BLOCK_POSITION_NOT_NULL, result = FAIL_ON_NULL)) MethodHandle keyHashBlock,
@TypeParameter("V") Type valueType,
@OperatorDependency(
operator = OperatorType.READ_VALUE,
argumentTypes = "V",
convention = @Convention(arguments = FLAT, result = BLOCK_BUILDER)) MethodHandle valueReadFlat,
@OperatorDependency(
operator = OperatorType.READ_VALUE,
argumentTypes = "V",
convention = @Convention(arguments = VALUE_BLOCK_POSITION_NOT_NULL, result = FLAT_RETURN)) MethodHandle valueWriteFlat)
{
this.keyType = requireNonNull(keyType, "keyType is null");
this.keyReadFlat = requireNonNull(keyReadFlat, "keyReadFlat is null");
this.keyWriteFlat = requireNonNull(keyWriteFlat, "keyWriteFlat is null");
this.keyHashFlat = requireNonNull(keyHashFlat, "keyHashFlat is null");
this.keyDistinctFlatBlock = requireNonNull(keyDistinctFlatBlock, "keyDistinctFlatBlock is null");
this.keyHashBlock = requireNonNull(keyHashBlock, "keyHashBlock is null");
this.valueType = requireNonNull(valueType, "valueType is null");
this.valueReadFlat = requireNonNull(valueReadFlat, "valueReadFlat is null");
this.valueWriteFlat = requireNonNull(valueWriteFlat, "valueWriteFlat is null");
}
@Override
public MultimapAggregationState createSingleState()
{
return new SingleMultimapAggregationState(keyType, keyReadFlat, keyWriteFlat, keyHashFlat, keyDistinctFlatBlock, keyHashBlock, valueType, valueReadFlat, valueWriteFlat);
}
@Override
public MultimapAggregationState createGroupedState()
{
return new GroupedMultimapAggregationState(keyType, keyReadFlat, keyWriteFlat, keyHashFlat, keyDistinctFlatBlock, keyHashBlock, valueType, valueReadFlat, valueWriteFlat);
}
}
