| /* |
| * 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.core; |
| import java.io.IOException; |
| |
| import org.apache.lucene.index.DirectoryReader; |
| import org.apache.lucene.index.IndexWriter; |
| import org.apache.lucene.store.Directory; |
| import org.apache.solr.common.util.NamedList; |
| import org.apache.solr.util.plugin.NamedListInitializedPlugin; |
| |
| /** |
| * Factory used to build a new IndexReader instance. |
| */ |
| public abstract class IndexReaderFactory implements NamedListInitializedPlugin { |
| /** |
| * init will be called just once, immediately after creation. |
| * <p> |
| * The args are user-level initialization parameters that may be specified |
| * when declaring an indexReaderFactory in solrconfig.xml |
| * |
| */ |
| @Override |
| public void init(@SuppressWarnings("rawtypes") NamedList args) { |
| Object v = args.get("setTermIndexDivisor"); |
| if (v != null) { |
| throw new IllegalArgumentException("Illegal parameter 'setTermIndexDivisor'"); |
| } |
| } |
| |
| /** |
| * Creates a new IndexReader instance using the given Directory. |
| * |
| * @param indexDir indexDir index location |
| * @param core {@link SolrCore} instance where this reader will be used. NOTE: |
| * this SolrCore instance may not be fully configured yet, but basic things like |
| * {@link SolrCore#getCoreDescriptor()}, {@link SolrCore#getLatestSchema()} and |
| * {@link SolrCore#getSolrConfig()} are valid. |
| * @return An IndexReader instance |
| * @throws IOException If there is a low-level I/O error. |
| */ |
| public abstract DirectoryReader newReader(Directory indexDir, SolrCore core) |
| throws IOException; |
| |
| /** |
| * Creates a new IndexReader instance using the given IndexWriter. |
| * <p> |
| * This is used for opening the initial reader in NRT mode |
| * |
| * @param writer IndexWriter |
| * @param core {@link SolrCore} instance where this reader will be used. NOTE: |
| * this SolrCore instance may not be fully configured yet, but basic things like |
| * {@link SolrCore#getCoreDescriptor()}, {@link SolrCore#getLatestSchema()} and |
| * {@link SolrCore#getSolrConfig()} are valid. |
| * @return An IndexReader instance |
| * @throws IOException If there is a low-level I/O error. |
| */ |
| public abstract DirectoryReader newReader(IndexWriter writer, SolrCore core) |
| throws IOException; |
| } |