/*
* Copyright 2009-2016 Tilmann Zaeschke. All rights reserved.
*
* This file is part of ZooDB.
*
* ZooDB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* ZooDB 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with ZooDB. If not, see <http://www.gnu.org/licenses/>.
*
* See the README and COPYING files for further information.
*/
package org.zoodb.jdo.spi;
import javax.jdo.PersistenceManager;
import javax.jdo.spi.StateInterrogation;
import org.zoodb.api.impl.ZooPC;
import org.zoodb.internal.ZooHandleImpl;
/**
* StateInterrogator for JDO.
* This is only used when the persistent classes implement ZooPC directly instead of
* PersistenceCapableImpl. This interrogator is then used when calling e.g. JDOHelper.isDirty().
*
*
* @author Tilmann Zaschke
*
*/
public class ZooStateInterrogator implements StateInterrogation {
private ZooPC checkZPC(Object pc) {
if (pc instanceof ZooPC) {
return (ZooPC) pc;
}
if (pc instanceof ZooHandleImpl) {
return ((ZooHandleImpl)pc).getGenericObject();
}
return null;
}
@Override
public Boolean isPersistent(Object pc) {
ZooPC zpc = checkZPC(pc);
if (zpc == null) {
return null;
}
return zpc.jdoZooIsPersistent();
}
@Override
public Boolean isTransactional(Object pc) {
ZooPC zpc = checkZPC(pc);
if (zpc == null) {
return null;
}
return zpc.jdoZooIsTransactional();
}
@Override
public Boolean isDirty(Object pc) {
ZooPC zpc = checkZPC(pc);
if (zpc == null) {
return null;
}
return zpc.jdoZooIsDirty();
}
@Override
public Boolean isNew(Object pc) {
ZooPC zpc = checkZPC(pc);
if (zpc == null) {
return null;
}
return zpc.jdoZooIsNew();
}
@Override
public Boolean isDeleted(Object pc) {
ZooPC zpc = checkZPC(pc);
if (zpc == null) {
return null;
}
return zpc.jdoZooIsDeleted();
}
@Override
public Boolean isDetached(Object pc) {
// TODO Auto-generated method stub
return null;
}
@Override
public PersistenceManager getPersistenceManager(Object pc) {
ZooPC zpc = checkZPC(pc);
if (zpc == null) {
return null;
}
return (PersistenceManager) zpc.jdoZooGetContext().getSession().getExternalSession();
}
@Override
public Object getObjectId(Object pc) {
//Especially for when returning Handles from failed optimistic commit()
ZooPC zpc = checkZPC(pc);
if (zpc == null) {
return null;
}
return zpc.jdoZooGetOid();
}
@Override
public Object getTransactionalObjectId(Object pc) {
//Especially for when returning Handles from failed optimistic commit()
ZooPC zpc = checkZPC(pc);
if (zpc == null) {
return null;
}
return zpc.jdoZooGetOid();
}
@Override
public Object getVersion(Object pc) {
// TODO Auto-generated method stub
return null;
}
@Override
public boolean makeDirty(Object pc, String fieldName) {
ZooPC zpc = checkZPC(pc);
if (zpc == null) {
return false;
}
zpc.jdoZooMarkDirty();
return true;
}
}