com.hazelcast.org.apache.calcite.adapter.enumerable.impl.AggResetContextImpl Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you 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.hazelcast.org.apache.calcite.adapter.enumerable.impl;
import com.hazelcast.org.apache.calcite.adapter.enumerable.AggResetContext;
import com.hazelcast.org.apache.calcite.adapter.enumerable.NestedBlockBuilderImpl;
import com.hazelcast.org.apache.calcite.linq4j.tree.BlockBuilder;
import com.hazelcast.org.apache.calcite.linq4j.tree.Expression;
import com.hazelcast.org.apache.calcite.rel.core.AggregateCall;
import java.util.List;
/**
* Implementation of
* {@link com.hazelcast.org.apache.calcite.adapter.enumerable.AggResetContext}.
*/
public abstract class AggResetContextImpl extends NestedBlockBuilderImpl
implements AggResetContext {
private final List accumulator;
/**
* Creates aggregate reset context.
*
* @param block Code block that will contain the added initialization
* @param accumulator Accumulator variables that store the intermediate
* aggregate state
*/
protected AggResetContextImpl(BlockBuilder block, List accumulator) {
super(block);
this.accumulator = accumulator;
}
@Override public List accumulator() {
return accumulator;
}
public AggregateCall call() {
throw new UnsupportedOperationException();
}
}