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* Licensed to the Apache Software Foundation (ASF) under one
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* 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.listener.InstanceLifecycleEvent;
import com.google.common.collect.Lists;
import org.datanucleus.enhancement.Persistable;
import org.apache.isis.core.commons.ensure.Assert;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.runtime.system.persistence.PersistenceQuery;
import org.apache.isis.core.runtime.system.persistence.PersistenceSession;
import org.apache.isis.objectstore.jdo.datanucleus.persistence.IsisLifecycleListener;
public abstract class PersistenceQueryProcessorAbstract<T extends PersistenceQuery>
implements PersistenceQueryProcessor<T> {
final PersistenceSession persistenceSession;
protected PersistenceQueryProcessorAbstract(final PersistenceSession persistenceSession) {
this.persistenceSession = persistenceSession;
}
/**
* Traversing the provided list causes (or should cause) the
* {@link IsisLifecycleListener#postLoad(InstanceLifecycleEvent) {
* to be called.
*/
protected List<ObjectAdapter> loadAdapters(final List<?> pojos) {
final List<ObjectAdapter> adapters = Lists.newArrayList();
for (final Object pojo : pojos) {
// ought not to be necessary, however for some queries it seems that the
// lifecycle listener is not called
ObjectAdapter adapter;
if(pojo instanceof Persistable) {
// an entity
persistenceSession.initializeMapAndCheckConcurrency((Persistable) pojo);
adapter = persistenceSession.getAdapterFor(pojo);
} else {
// a value type
adapter = persistenceSession.adapterFor(pojo);
}
Assert.assertNotNull(adapter);
adapters.add(adapter);
}
return adapters;
}
}