| /* |
| * 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.queries.payloads; |
| |
| /** |
| * Calculates the minimum payload seen |
| * |
| **/ |
| public class MinPayloadFunction extends PayloadFunction { |
| |
| @Override |
| public float currentScore(int docId, String field, int start, int end, int numPayloadsSeen, float currentScore, float currentPayloadScore) { |
| if (numPayloadsSeen == 0) { |
| return currentPayloadScore; |
| } else { |
| return Math.min(currentPayloadScore, currentScore); |
| } |
| } |
| |
| @Override |
| public float docScore(int docId, String field, int numPayloadsSeen, float payloadScore) { |
| return numPayloadsSeen > 0 ? payloadScore : 1; |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + this.getClass().hashCode(); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (getClass() != obj.getClass()) |
| return false; |
| return true; |
| } |
| |
| } |