/**
* 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);
}
/**
* Returns entity qualifier expressed as DB path qualifier or null if entity has no qualifier.
*
* @since 3.0
*/
public Expression getDbQualifier() {
if (entity.getDeclaredQualifier() == null) {
return null;
}
if (normalizedQualifier == null) {
normalizedQualifier = entity.translateToDbPath(entity.getDeclaredQualifier());
}
return normalizedQualifier;
}
/**
* Returns a qualifier Expression that matches root entity of this tree and all its subentities.
*/
public Expression qualifierForEntityAndSubclasses() {
Expression qualifier = entity.getDeclaredQualifier();
if (qualifier == null) {
// match all
return null;
}
if (subentities != null) {
for (EntityInheritanceTree child : subentities) {
Expression childQualifier = child.qualifierForEntityAndSubclasses();
// if any child qualifier is null, just return null, since no filtering is
// possible
if (childQualifier == null) {
return null;
}
qualifier = qualifier.orExp(childQualifier);
}
}
return qualifier;
}