/**
* If ObjEntity qualifier is set, asks it to inject initial value to an object. Also performs all
* Persistent initialization operations
*/
protected void injectInitialValue(Object obj) {
// must follow this exact order of property initialization per CAY-653,
// i.e. have
// the id and the context in place BEFORE setPersistence is called
Persistent object = (Persistent) obj;
object.setObjectContext(this);
object.setPersistenceState(PersistenceState.NEW);
GraphManager graphManager = getGraphManager();
synchronized (graphManager) {
graphManager.registerNode(object.getObjectId(), object);
graphManager.nodeCreated(object.getObjectId());
}
ObjEntity entity;
try {
entity = getEntityResolver().getObjEntity(object.getClass());
} catch (CayenneRuntimeException ex) {
// ObjEntity cannot be fetched, ignored
entity = null;
}
if (entity != null) {
if (entity.getDeclaredQualifier() instanceof ValueInjector) {
((ValueInjector) entity.getDeclaredQualifier()).injectValue(object);
}
}
// invoke callbacks
getEntityResolver().getCallbackRegistry().performCallbacks(LifecycleEvent.POST_ADD, object);
}
/** @since 3.1 */
@Override
public <T extends Persistent> T localObject(T objectFromAnotherContext) {
if (objectFromAnotherContext == null) {
throw new NullPointerException("Null object argument");
}
ObjectId id = objectFromAnotherContext.getObjectId();
// first look for the ID in the local GraphManager
synchronized (getGraphManager()) {
T localObject = (T) getGraphManager().getNode(id);
if (localObject != null) {
return localObject;
}
// create a hollow object, optimistically assuming that the ID we
// got from
// 'objectFromAnotherContext' is a valid ID either in the parent
// context or in
// the DB. This essentially defers possible FaultFailureExceptions.
ClassDescriptor descriptor = getEntityResolver().getClassDescriptor(id.getEntityName());
Persistent persistent = (Persistent) descriptor.createObject();
persistent.setObjectContext(this);
persistent.setObjectId(id);
persistent.setPersistenceState(PersistenceState.HOLLOW);
getGraphManager().registerNode(id, persistent);
return (T) persistent;
}
}
