Documentation

In HyperIoTPreUpdateAction, the execute method is executed just before the entity is saved within the database.

Pre Save Action Class Hierarchy

To define a custom behavior hooked to a pre-update action, simply register a component as follows:

@Component(service = HyperIoTPreUpdateAction.class, property = {"type=<entity_package_with_className>"})
public class MyPreAction <T extends HyperIoTBaseEntity> implements HyperIoTPreUpdateAction<T> {

    @Override
    public void execute(T entity) {
      ....
    }
}

The “magic” happens all in the OSGi annotation :

@Component(service = HyperIoTPreUpdateAction.class, property = {"type=mypackage.MyEntity"})

By implementing the interface and specifying via property OSGi type the entity to which you want to “capture” you can easily perform custom logic in the life cycle of any entity within the HyperIoT Framework.

N.B. “With great power comes great responsibility” cit.