/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.persistence.orm.jdo;
import java.io.Serializable;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import javax.jdo.PersistenceManager;
import javax.jdo.PersistenceManagerFactory;
import javax.jdo.Query;
import org.smallmind.nutsnbolts.util.IterableIterator;
import org.smallmind.persistence.Durable;
import org.smallmind.persistence.UpdateMode;
import org.smallmind.persistence.cache.VectoredDao;
import org.smallmind.persistence.orm.ORMDao;
public abstract class JDODao<I extends Serializable & Comparable<I>, D extends Durable<I>> extends ORMDao<I, D, PersistenceManagerFactory, PersistenceManager> {
public JDODao (JDOProxySession proxySession) {
this(proxySession, null);
}
public JDODao (JDOProxySession proxySession, VectoredDao<I, D> vectoredDao) {
super(proxySession, vectoredDao);
}
public D get (Class<D> durableClass, I id) {
VectoredDao<I, D> vectoredDao;
D durable;
if ((vectoredDao = getVectoredDao()) == null) {
if ((durable = acquire(durableClass, id)) != null) {
return durable;
}
}
else {
if ((durable = vectoredDao.get(durableClass, id)) != null) {
return durable;
}
if ((durable = acquire(durableClass, id)) != null) {
return vectoredDao.persist(durableClass, durable, UpdateMode.SOFT);
}
}
return null;
}
@Override
public D acquire (Class<D> durableClass, I id) {
return durableClass.cast(getSession().getNativeSession().getObjectById(durableClass, id));
}
public List<D> list () {
LinkedList<D> instanceList;
Iterator instanceIter;
instanceIter = getSession().getNativeSession().getExtent(getManagedClass()).iterator();
instanceList = new LinkedList<D>();
while (instanceIter.hasNext()) {
instanceList.add(getManagedClass().cast(instanceIter.next()));
}
return instanceList;
}
public Iterable<D> scroll () {
return new IterableIterator<D>(getSession().getNativeSession().getExtent(getManagedClass()).iterator());
}
public D detach (D object) {
return getManagedClass().cast(getSession().getNativeSession().detachCopy(object));
}
public D persist (Class<D> durableClass, D durable) {
D persistentDurable;
VectoredDao<I, D> vectoredDao = getVectoredDao();
persistentDurable = durableClass.cast(getSession().getNativeSession().makePersistent(durable));
if (vectoredDao != null) {
return vectoredDao.persist(durableClass, persistentDurable, UpdateMode.HARD);
}
return persistentDurable;
}
public void delete (Class<D> durableClass, D durable) {
VectoredDao<I, D> vectoredDao = getVectoredDao();
getSession().getNativeSession().deletePersistent(durable);
if (vectoredDao != null) {
vectoredDao.delete(durableClass, durable);
}
}
public D find (QueryDetails queryDetails) {
Query query;
query = constructQuery(queryDetails);
query.setUnique(true);
return getManagedClass().cast(query.executeWithMap(queryDetails.getParameterMap()));
}
public List<D> list (QueryDetails queryDetails) {
return Collections.checkedList((List<D>)constructQuery(queryDetails).executeWithMap(queryDetails.getParameterMap()), getManagedClass());
}
private Query constructQuery (QueryDetails queryDetails) {
Query query;
Class[] importClasses;
query = getSession().getNativeSession().newQuery(queryDetails.getQuery());
query.setIgnoreCache(queryDetails.getIgnoreCache());
if ((importClasses = queryDetails.getImports()) != null) {
if (importClasses.length > 0) {
StringBuilder importBuilder;
importBuilder = new StringBuilder("import ");
for (int count = 0; count < importClasses.length; count++) {
if (count > 0) {
importBuilder.append("; ");
}
importBuilder.append(importClasses[count].getCanonicalName());
}
query.declareImports(importBuilder.toString());
}
}
return query;
}
}