Package io.ebean.event

Interface BeanPersistController

  • All Known Implementing Classes:
    BeanPersistAdapter
    public interface BeanPersistController
    Used to enhance or override the default bean persistence mechanism.

    Note that if want to totally change the finding, you need to use a BeanQueryAdapter rather than using postLoad().

    Note that getTransaction() on the PersistRequest returns the transaction used for the insert, update, delete or fetch. To explicitly use this same transaction you should use this transaction via methods on Database. 

    

   Object extaBeanToSave = ...;
   Transaction t = request.getTransaction();
   Database server = request.getEbeanServer();
   database.save(extraBeanToSave, t);

    It is worth noting that BeanPersistListener is different in three main ways from BeanPersistController postXXX methods.

    • BeanPersistListener only sees successfully committed events. BeanController pre and post methods occur before the commit or a rollback and will see events that are later rolled back
    • BeanPersistListener runs in a background thread and will not effect the response time of the actual persist where as BeanController code will
    • BeanPersistListener can be notified of events from other servers in a cluster.

    A BeanPersistController is either found automatically via class path search or can be added programmatically via DatabaseConfig.add().

    • Method Detail

      • getExecutionOrder

        int getExecutionOrder()
        When there are multiple BeanPersistController's for a given entity type this controls the order in which they are executed.

        Lowest values are executed first.

        Returns:
        an int used to control the order BeanPersistController's are executed

      • isRegisterFor

        boolean isRegisterFor​(Class<?> cls)
        Return true if this BeanPersistController should be registered for events on this entity type.

      • preInsert

        boolean preInsert​(BeanPersistRequest<?> request)
        Prior to the insert perform some action. Return true if you want the default functionality to continue.

        Return false if you have completely replaced the insert functionality and do not want the default insert to be performed.

      • preUpdate

        boolean preUpdate​(BeanPersistRequest<?> request)
        Prior to the update perform some action. Return true if you want the default functionality to continue.

        Return false if you have completely replaced the update functionality and do not want the default update to be performed.

      • preDelete

        boolean preDelete​(BeanPersistRequest<?> request)
        Prior to the delete perform some action. Return true if you want the default functionality to continue.

        Return false if you have completely replaced the delete functionality and do not want the default delete to be performed.

      • preSoftDelete

        boolean preSoftDelete​(BeanPersistRequest<?> request)
        Prior to a soft delete perform some action. Return true if you want the default functionality to continue.