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* 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
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* KIND, either express or implied. See the License for the
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package org.apache.isis.objectstore.jdo.datanucleus.persistence.queries;
import java.util.List;
import javax.jdo.Query;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
import org.apache.isis.core.runtime.persistence.query.PersistenceQueryFindAllInstances;
import org.apache.isis.core.runtime.system.persistence.PersistenceSession;
public class PersistenceQueryFindAllInstancesProcessor extends PersistenceQueryProcessorAbstract<PersistenceQueryFindAllInstances> {
private static final Logger LOG = LoggerFactory.getLogger(PersistenceQueryFindAllInstancesProcessor.class);
public PersistenceQueryFindAllInstancesProcessor(final PersistenceSession persistenceSession) {
super(persistenceSession);
}
public List<ObjectAdapter> process(final PersistenceQueryFindAllInstances persistenceQuery) {
final ObjectSpecification specification = persistenceQuery.getSpecification();
Class<?> cls = specification.getCorrespondingClass();
final Query jdoQuery = persistenceSession.newJdoQuery(cls);
// http://www.datanucleus.org/servlet/jira/browse/NUCCORE-1103
jdoQuery.addExtension("datanucleus.multivaluedFetch", "none");
if (LOG.isDebugEnabled()) {
LOG.debug("allInstances(): class=" + specification.getFullIdentifier());
}
try {
final List<?> pojos = (List<?>) jdoQuery.execute();
return loadAdapters(pojos);
} finally {
jdoQuery.closeAll();
}
}
}