/*
* 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.index.TermContext;
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, TermContext context)
throws IOException;
public abstract CollectionStatistics collectionStatistics(SolrIndexSearcher localSearcher, String field)
throws IOException;
}