+++ /dev/null
-package org.apache.lucene.search.payloads;
-
-import org.apache.lucene.search.Explanation;
-/**
- * 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.
- */
-
-/**
- * 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 Explanation explain(int doc, int numPayloadsSeen, float payloadScore) {
- Explanation expl = new Explanation();
- float minPayloadScore = (numPayloadsSeen > 0 ? payloadScore : 1);
- expl.setValue(minPayloadScore);
- expl.setDescription("MinPayloadFunction(...)");
- return expl;
- }
- @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;
- }
-
-}