/*
* 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 org.apache.lucene.facet;
import org.apache.lucene.util.PriorityQueue;
/** Keeps highest results, first by largest float value,
* then tie break by smallest ord. */
public class TopOrdAndFloatQueue extends PriorityQueue<TopOrdAndFloatQueue.OrdAndValue> {
/** Holds a single entry. */
public static final class OrdAndValue {
/** Ordinal of the entry. */
public int ord;
/** Value associated with the ordinal. */
public float value;
/** Default constructor. */
public OrdAndValue() {
}
}
/** Sole constructor. */
public TopOrdAndFloatQueue(int topN) {
super(topN, false);
}
@Override
protected boolean lessThan(OrdAndValue a, OrdAndValue b) {
if (a.value < b.value) {
return true;
} else if (a.value > b.value) {
return false;
} else {
return a.ord > b.ord;
}
}
}