001    /*
002     * Cumulus4j - Securing your data in the cloud - http://cumulus4j.org
003     * Copyright (C) 2011 NightLabs Consulting GmbH
004     *
005     * This program is free software: you can redistribute it and/or modify
006     * it under the terms of the GNU Affero General Public License as
007     * published by the Free Software Foundation, either version 3 of the
008     * License, or (at your option) any later version.
009     *
010     * This program is distributed in the hope that it will be useful,
011     * but WITHOUT ANY WARRANTY; without even the implied warranty of
012     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013     * GNU Affero General Public License for more details.
014     *
015     * You should have received a copy of the GNU Affero General Public License
016     * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017     */
018    package org.cumulus4j.store.query;
019    
020    import java.util.Collection;
021    import java.util.Map;
022    
023    import org.cumulus4j.store.PersistenceManagerConnection;
024    import org.datanucleus.ClassLoaderResolver;
025    import org.datanucleus.query.compiler.QueryCompilation;
026    import org.datanucleus.store.query.Query;
027    
028    /**
029     * JDO-specific sub-class of {@link QueryEvaluator} binding the JDO-agnostic query logic
030     * to the JDO API.
031     * @author Marco หงุ่ยตระกูล-Schulze - marco at nightlabs dot de
032     */
033    public class JDOQueryEvaluator extends QueryEvaluator {
034    
035            public JDOQueryEvaluator(Query query, QueryCompilation compilation, Map<String, Object> parameterValues,
036                            ClassLoaderResolver clr, PersistenceManagerConnection pmConn)
037            {
038                    super("JDOQL", query, compilation, parameterValues, clr, pmConn);
039            }
040    
041            @Override
042            protected Collection<Object> evaluateSubquery(
043                            Query subquery, QueryCompilation compilation, Object outerCandidate
044            )
045            {
046                    JDOQueryEvaluator evaluator = new JDOQueryEvaluator(getQuery(), compilation, getParameterValues(),
047                                    getClassLoaderResolver(), getPersistenceManagerConnection());
048                    return evaluator.execute();
049            }
050    }