@Override
public PersistenceManagerEventHandlerResponse preFetch(
PersistenceManager persistenceManager,
PersistencePackage persistencePackage,
CriteriaTransferObject cto)
throws ServiceException {
try {
Class<?>[] entityClasses =
persistenceManager
.getDynamicEntityDao()
.getAllPolymorphicEntitiesFromCeiling(
Class.forName(persistencePackage.getCeilingEntityFullyQualifiedClassname()));
boolean isArchivable = false;
for (Class<?> entity : entityClasses) {
if (Status.class.isAssignableFrom(entity)) {
isArchivable = true;
break;
}
}
if (isArchivable && !persistencePackage.getPersistencePerspective().getShowArchivedFields()) {
FilterMapping filterMapping =
new FilterMapping()
.withFieldPath(new FieldPath().withTargetProperty("archiveStatus.archived"))
.withDirectFilterValues(new EmptyFilterValues())
.withRestriction(
new Restriction()
.withPredicateProvider(
new PredicateProvider<Character, Character>() {
@Override
public Predicate buildPredicate(
CriteriaBuilder builder,
FieldPathBuilder fieldPathBuilder,
From root,
String ceilingEntity,
String fullPropertyName,
Path<Character> explicitPath,
List<Character> directValues) {
return builder.or(
builder.equal(explicitPath, 'N'), builder.isNull(explicitPath));
}
}));
cto.getAdditionalFilterMappings().add(filterMapping);
}
return new PersistenceManagerEventHandlerResponse()
.withStatus(
PersistenceManagerEventHandlerResponse.PersistenceManagerEventHandlerResponseStatus
.HANDLED);
} catch (ClassNotFoundException e) {
LOG.error(
"Could not find the class "
+ persistencePackage.getCeilingEntityFullyQualifiedClassname()
+ " to "
+ "compute polymorphic entity types for. Assuming that the entity is not archivable");
return new PersistenceManagerEventHandlerResponse()
.withStatus(
PersistenceManagerEventHandlerResponse.PersistenceManagerEventHandlerResponseStatus
.NOT_HANDLED);
}
}
@Override
public Boolean canHandleAdd(PersistencePackage persistencePackage) {
try {
return persistencePackage.getCeilingEntityFullyQualifiedClassname() != null
&& AdminUser.class.isAssignableFrom(
Class.forName(persistencePackage.getCeilingEntityFullyQualifiedClassname()))
&& persistencePackage.getPersistencePerspectiveItems().isEmpty();
} catch (ClassNotFoundException e) {
throw new RuntimeException(e);
}
}