| //This class access the private class QueryCacheStoreQuery. |
| //So this has to be in kodo.datacache package |
| /* |
| * 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.openjpa.persistence.datacache; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.openjpa.datacache.QueryCacheStoreQuery.CachedList; |
| import org.apache.openjpa.kernel.Broker; |
| import org.apache.openjpa.kernel.BrokerImpl; |
| import org.apache.openjpa.kernel.QueryImpl; |
| import org.apache.openjpa.kernel.StoreQuery; |
| import org.apache.openjpa.lib.rop.ListResultList; |
| import org.apache.openjpa.lib.rop.ListResultObjectProvider; |
| import org.apache.openjpa.lib.rop.ResultObjectProvider; |
| |
| /** |
| * <p> |
| * Used to mark cached query results for testing. |
| * </p> |
| */ |
| public class CacheTestBroker extends BrokerImpl { |
| |
| |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| protected QueryImpl newQueryImpl(String language, StoreQuery sq) { |
| return new CacheTestQuery(this, language, sq); |
| } |
| |
| public static class CachedQueryResult extends ListResultList { |
| |
| |
| private static final long serialVersionUID = 1L; |
| |
| public CachedQueryResult(List list) { |
| super(list); |
| } |
| } |
| |
| private static class CacheTestQuery extends QueryImpl { |
| |
| |
| private static final long serialVersionUID = 1L; |
| |
| public CacheTestQuery(Broker broker, String language, |
| StoreQuery query) { |
| super(broker, language, query); |
| } |
| |
| @Override |
| protected Object toResult(StoreQuery q, StoreQuery.Executor ex, |
| ResultObjectProvider rop, StoreQuery.Range range) |
| throws Exception { |
| boolean cached = rop instanceof ListResultObjectProvider |
| && (((ListResultObjectProvider) rop) |
| .getDelegate() instanceof CachedList || |
| ((ListResultObjectProvider) rop) |
| .getDelegate() == Collections.EMPTY_LIST); |
| Object res = super.toResult(q, ex, rop, range); |
| if (cached && res instanceof List) |
| return new CachedQueryResult((List) res); |
| return res; |
| } |
| } |
| } |