@Path("deleteprop/{typename}/{propname}")
@GET
public XMLEntityMappings deleteProp(
@PathParam("typename") String typeName, @PathParam("propname") String propName)
throws Exception {
ClassAccessor entity =
JpaMapHelper.findClassAccessor(DynamicMetaSource.getEntityMaps(), typeName);
Attribute<?, ?> attr = JpaMetamodelHelper.getAttribute(typeName, propName);
if (JpaMapHelper.findPropertyBbyMappedBy(
JpaMetamodelHelper.getAttributeType(attr).getSimpleName(), propName)
!= null) {
throw new CodedExceptionImpl(
PROP_REFERED,
"Deletion can not be performed. Target Property is referred by other types");
}
EntityManager eManager = App.getEM();
eManager.getTransaction().begin();
Connection connection = eManager.unwrap(Connection.class);
for (String sql : JpaHelper.deletePropDBStructure(eManager, typeName, propName)) {
LOGGER.info(sql);
connection.createStatement().execute(sql);
}
eManager.getTransaction().commit();
JpaMapHelper.deleteProp(entity, propName);
App.getPersistenceUnit().refresh(false);
mapPersister.save(DynamicMetaSource.getEntityMaps());
return DynamicMetaSource.getEntityMaps();
}
@Path("deletetype/{typename}")
@GET
public XMLEntityMappings deleteType(@PathParam("typename") String typeName) throws Exception {
List<Attribute<?, ?>> attrs = JpaMetamodelHelper.findReferringProps(typeName, true);
if (!attrs.isEmpty()) {
throw new CodedExceptionImpl(
TYPE_REFERED, "Deletion can not be performed. Target type is referred by other types");
}
EntityManager eManager = App.getEM();
eManager.getTransaction().begin();
Connection connection = eManager.unwrap(Connection.class);
for (String sql : JpaHelper.deletePropDBStructure(eManager, typeName)) {
LOGGER.info(sql);
connection.createStatement().execute(sql);
}
eManager.getTransaction().commit();
JpaMapHelper.deleteClassAccessor(DynamicMetaSource.getEntityMaps(), typeName);
App.getPersistenceUnit().refresh(false);
mapPersister.save(DynamicMetaSource.getEntityMaps());
return DynamicMetaSource.getEntityMaps();
}