/**
* Returns the names of DbAtributes that comprise the primary key of the parent DbEntity.
*
* @since 3.0
*/
public Collection<String> getPrimaryKeyNames() {
DbEntity dbEntity = getDbEntity();
// abstract entities may have no DbEntity mapping
if (dbEntity == null) {
return Collections.emptyList();
}
Collection<DbAttribute> pkAttributes = dbEntity.getPrimaryKeys();
Collection<String> names = new ArrayList<String>(pkAttributes.size());
for (DbAttribute pk : pkAttributes) {
names.add(pk.getName());
}
return Collections.unmodifiableCollection(names);
}
