/**
* Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
*
* 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 com.linkedin.pinot.core.query.selection.comparator;
import com.linkedin.pinot.core.common.Block;
import com.linkedin.pinot.core.common.BlockSingleValIterator;
public class DocIdDoubleValComparator implements IDocIdValComparator {
int orderToggleMultiplier = 1;
private final BlockSingleValIterator blockValSetIterator;
public DocIdDoubleValComparator(Block block, boolean ascending) {
blockValSetIterator = (BlockSingleValIterator) block.getBlockValueSet().iterator();
if (!ascending) {
orderToggleMultiplier = -1;
}
}
public int compare(int docId1, int docId2) {
blockValSetIterator.skipTo(docId1);
double val1 = blockValSetIterator.nextDoubleVal();
blockValSetIterator.skipTo(docId2);
double val2 = blockValSetIterator.nextDoubleVal();
return Double.compare(val1, val2) * orderToggleMultiplier;
}
}