/* * Licensed to ElasticSearch and Shay Banon under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. ElasticSearch 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.elasticsearch.index.cache.filter.none; import org.apache.lucene.index.IndexReader; import org.apache.lucene.search.Filter; import org.elasticsearch.common.inject.Inject; import org.elasticsearch.common.settings.Settings; import org.elasticsearch.index.AbstractIndexComponent; import org.elasticsearch.index.Index; import org.elasticsearch.index.cache.filter.FilterCache; import org.elasticsearch.index.settings.IndexSettings; /** * */ public class NoneFilterCache extends AbstractIndexComponent implements FilterCache { @Inject public NoneFilterCache(Index index, @IndexSettings Settings indexSettings) { super(index, indexSettings); logger.debug("Using no filter cache"); } @Override public String type() { return "none"; } @Override public void close() { // nothing to do here } @Override public Filter cache(Filter filterToCache) { return filterToCache; } @Override public boolean isCached(Filter filter) { return false; } @Override public void clear(String reason) { // nothing to do here } @Override public void clear(IndexReader reader) { // nothing to do here } @Override public EntriesStats entriesStats() { return new EntriesStats(0, 0); } @Override public long evictions() { return 0; } }