1
package org.apache.lucene.search.payloads;
3
import org.apache.lucene.search.Explanation;
5
* Licensed to the Apache Software Foundation (ASF) under one or more
6
* contributor license agreements. See the NOTICE file distributed with
7
* this work for additional information regarding copyright ownership.
8
* The ASF licenses this file to You under the Apache License, Version 2.0
9
* (the "License"); you may not use this file except in compliance with
10
* the License. You may obtain a copy of the License at
12
* http://www.apache.org/licenses/LICENSE-2.0
14
* Unless required by applicable law or agreed to in writing, software
15
* distributed under the License is distributed on an "AS IS" BASIS,
16
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17
* See the License for the specific language governing permissions and
18
* limitations under the License.
22
* Calculates the minimum payload seen
25
public class MinPayloadFunction extends PayloadFunction {
28
public float currentScore(int docId, String field, int start, int end, int numPayloadsSeen, float currentScore, float currentPayloadScore) {
29
if (numPayloadsSeen == 0) {
30
return currentPayloadScore;
32
return Math.min(currentPayloadScore, currentScore);
37
public float docScore(int docId, String field, int numPayloadsSeen, float payloadScore) {
38
return numPayloadsSeen > 0 ? payloadScore : 1;
42
public Explanation explain(int doc, int numPayloadsSeen, float payloadScore) {
43
Explanation expl = new Explanation();
44
float minPayloadScore = (numPayloadsSeen > 0 ? payloadScore : 1);
45
expl.setValue(minPayloadScore);
46
expl.setDescription("MinPayloadFunction(...)");
50
public int hashCode() {
53
result = prime * result + this.getClass().hashCode();
58
public boolean equals(Object obj) {
63
if (getClass() != obj.getClass())