io.prestosql.operator.aggregation.arrayagg.ArrayAggregationStateFactory Maven / Gradle / Ivy

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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.prestosql.operator.aggregation.arrayagg;

import io.prestosql.spi.function.AccumulatorStateFactory;
import io.prestosql.spi.type.Type;

public class ArrayAggregationStateFactory
        implements AccumulatorStateFactory
{
    private final Type type;

    public ArrayAggregationStateFactory(Type type)
    {
        this.type = type;
    }

    @Override
    public ArrayAggregationState createSingleState()
    {
        return new SingleArrayAggregationState(type);
    }

    @Override
    public Class getSingleStateClass()
    {
        return SingleArrayAggregationState.class;
    }

    @Override
    public ArrayAggregationState createGroupedState()
    {
        return new GroupArrayAggregationState(type);
    }

    @Override
    public Class getGroupedStateClass()
    {
        return GroupArrayAggregationState.class;
    }
}