| /* |
| * 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.solr.search.stats; |
| |
| import java.io.IOException; |
| |
| import org.apache.lucene.index.Term; |
| import org.apache.lucene.search.CollectionStatistics; |
| import org.apache.lucene.search.Query; |
| import org.apache.lucene.search.TermStatistics; |
| import org.apache.lucene.search.Weight; |
| import org.apache.solr.search.SolrIndexSearcher; |
| |
| /** |
| * The purpose of this class is only to provide two pieces of information |
| * necessary to create {@link Weight} from a {@link Query}, that is |
| * {@link TermStatistics} for a term and {@link CollectionStatistics} for the |
| * whole collection. |
| */ |
| public abstract class StatsSource { |
| |
| public abstract TermStatistics termStatistics(SolrIndexSearcher localSearcher, Term term, int docFreq, long totalTermFreq) |
| throws IOException; |
| |
| public abstract CollectionStatistics collectionStatistics(SolrIndexSearcher localSearcher, String field) |
| throws IOException; |
| } |