MDSConstructor¶

public interface MDSConstructor¶: This interface provides methods to create a class for the given entity. The implementation of this interface should also construct other classes like repository, service interface and implementation for this service interface.

Methods¶

constructEntities¶

boolean constructEntities()¶

Creates a class definition and inserts it into the MDS class loader, based on data from database. The implementation of this method should also create a repository, interface (when it’s necessary) and implementation of this interface.

After executing this method, it should be possible to create an instance of the given class definition and save it to the database by javax.jdo.PersistenceManager provided by DataNucleus.

An interface related with class definition should be created only for entities from outside bundles and if the bundle does not define its own interface.

Parameters:	buildDDE – `true` if class definitions for entities from outside bundles should also be created; otherwise `false`.
Returns:	`true` if there were entities for which class definitions should be created; otherwise `false`.

updateFields¶

void updateFields(Long entityId, Map<String, String> fieldNameChanges)¶

Updates the field names of an entity. This method alters the database schema by changing column names to the new value. This is done for the entity instances, history instances and trash instances.

Parameters:	entityId – The ID of an entity to update fieldNameChanges – A map, indexed by current field names and values being updated field names.