com.hazelcast.org.apache.calcite.adapter.enumerable.impl.WinAggResetContextImpl 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.WinAggResetContext;
import com.hazelcast.org.apache.calcite.linq4j.tree.BlockBuilder;
import com.hazelcast.org.apache.calcite.linq4j.tree.Expression;
import java.util.List;
/**
* Implementation of
* {@link com.hazelcast.org.apache.calcite.adapter.enumerable.WinAggResetContext}.
*/
public class WinAggResetContextImpl extends AggResetContextImpl
implements WinAggResetContext {
private final Expression index;
private final Expression startIndex;
private final Expression endIndex;
private final Expression frameRowCount;
private final Expression partitionRowCount;
private final Expression hasRows;
/**
* Creates window aggregate reset context.
* @param block code block that will contain the added initialization
* @param accumulator accumulator variables that store the intermediate
* aggregate state
* @param index index of the current row in the partition
* @param startIndex index of the very first row in partition
* @param endIndex index of the very last row in partition
* @param hasRows boolean expression that tells if the partition has rows
* @param frameRowCount number of rows in the current frame
* @param partitionRowCount number of rows in the current partition
*/
public WinAggResetContextImpl(BlockBuilder block,
List accumulator, Expression index,
Expression startIndex, Expression endIndex,
Expression hasRows,
Expression frameRowCount, Expression partitionRowCount) {
super(block, accumulator);
this.index = index;
this.startIndex = startIndex;
this.endIndex = endIndex;
this.frameRowCount = frameRowCount;
this.partitionRowCount = partitionRowCount;
this.hasRows = hasRows;
}
@Override public Expression index() {
return index;
}
@Override public Expression startIndex() {
return startIndex;
}
@Override public Expression endIndex() {
return endIndex;
}
@Override public Expression hasRows() {
return hasRows;
}
@Override public Expression getFrameRowCount() {
return frameRowCount;
}
@Override public Expression getPartitionRowCount() {
return partitionRowCount;
}
}