/**
* Returns <code>true</code> if the entity name needs to be filtered.
*
* <p>Implementation filteres out inherited hibernate mappings, since the select query for the
* base class will cover any inherited classes as well.
*
* <p>Note, that this method is called after it has been verified that the class has Compass
* mappings (either directly, or indirectly by an interface or a super class).
*
* @param entityname The name of the entity
* @param classMetadata The Hibernate class meta data.
* @param device The Jpa Gps device
* @return <code>true</code> if the entity should be filtered out, <code>false</code> if not.
*/
protected boolean shouldFilter(
String entityname, ClassMetadata classMetadata, Map allClassMetaData, JpaGpsDevice device) {
Class<?> clazz = classMetadata.getMappedClass();
// if it is inherited, do not add it to the classes to index, since the "from [entity]"
// query for the base class will return results for this class as well
if (classMetadata.isInherited()) {
String superClassEntityName = ((AbstractEntityPersister) classMetadata).getMappedSuperclass();
ClassMetadata superClassMetadata = (ClassMetadata) allClassMetaData.get(superClassEntityName);
Class superClass = superClassMetadata.getMappedClass();
// only filter out classes that their super class has compass mappings
if (superClass != null
&& ((CompassGpsInterfaceDevice) device.getGps())
.hasMappingForEntityForIndex(superClass)) {
if (log.isDebugEnabled()) {
log.debug(
"Entity ["
+ entityname
+ "] is inherited and super class ["
+ superClass
+ "] has compass mapping, filtering it out");
}
return true;
}
}
return false;
}
public EntityInformation[] locate(EntityManagerFactory entityManagerFactory, JpaGpsDevice device)
throws JpaGpsDeviceException {
CompassGpsInterfaceDevice gps = (CompassGpsInterfaceDevice) device.getGps();
HibernateEntityManagerFactory hibernateEntityManagerFactory =
(HibernateEntityManagerFactory) entityManagerFactory;
SessionFactory sessionFactory = hibernateEntityManagerFactory.getSessionFactory();
ArrayList<EntityInformation> entitiesList = new ArrayList<EntityInformation>();
Map allClassMetaData = sessionFactory.getAllClassMetadata();
for (Object o : allClassMetaData.keySet()) {
String entityname = (String) o;
if (!gps.hasMappingForEntityForIndex((entityname))) {
if (log.isDebugEnabled()) {
log.debug("Entity [" + entityname + "] does not have compass mapping, filtering it out");
}
continue;
}
ClassMetadata classMetadata = (ClassMetadata) allClassMetaData.get(entityname);
if (shouldFilter(entityname, classMetadata, allClassMetaData, device)) {
continue;
}
Class<?> clazz = classMetadata.getMappedClass();
ResourceMapping resourceMapping = gps.getMappingForEntityForIndex(entityname);
EntityInformation entityInformation =
new EntityInformation(
clazz,
entityname,
new HibernateJpaQueryProvider(clazz, entityname),
resourceMapping.getSubIndexHash().getSubIndexes());
entitiesList.add(entityInformation);
if (log.isDebugEnabled()) {
log.debug("Entity [" + entityname + "] will be indexed");
}
}
return entitiesList.toArray(new EntityInformation[entitiesList.size()]);
}