EJB preguntas y respuestas de entrevista
Question: What is the difference between find and select methods in EJB?Answer: A select method can return a persistent field (or a collection thereof) of a related entity bean. A finder method can return only a local or remote interface (or a collection of interfaces).Because it is not exposed in any of the local or remote interfaces, a select method cannot be invoked by a client. It can be invoked only by the methods implemented within the entity bean class. A select method is usually invoked by either a business or a home method. A select method is defined in the entity bean class. For bean-managed persistence, a finder method is defined in the entity bean class, but for container-managed persistence it is not. |
Guardar para repaso
Guarda este elemento en marcadores, marcalo como dificil o agregalo a un conjunto de repaso.
Inicia sesion para guardar marcadores, preguntas dificiles y conjuntos de repaso.
Es util? Si No
Lo mas util segun los usuarios:
- What are the different kinds of enterprise beans?
- What is Entity Bean?
- What is Session Bean?
- What is the difference between Container-Managed Persistent (CMP) bean and Bean-Managed Persistent(BMP)?
- What are the methods of Entity Bean?