EJB 3.0 Transacciones y seguridad Tutor: Ing. Juan E. Talavera Horn 2010.
EJB 3.0 Message Driven Beans –Timers -AOP Tutor: Ing. Juan E. Talavera Horn 2010.
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Transcript of EJB 3.0 Message Driven Beans –Timers -AOP Tutor: Ing. Juan E. Talavera Horn 2010.
![Page 1: EJB 3.0 Message Driven Beans –Timers -AOP Tutor: Ing. Juan E. Talavera Horn 2010.](https://reader036.fdocuments.net/reader036/viewer/2022081506/5665b4591a28abb57c90c153/html5/thumbnails/1.jpg)
EJB 3.0Message Driven Beans –Timers -AOP
Tutor: Ing. Juan E. Talavera Horn
2010
![Page 2: EJB 3.0 Message Driven Beans –Timers -AOP Tutor: Ing. Juan E. Talavera Horn 2010.](https://reader036.fdocuments.net/reader036/viewer/2022081506/5665b4591a28abb57c90c153/html5/thumbnails/2.jpg)
Mensajes
Destination
![Page 3: EJB 3.0 Message Driven Beans –Timers -AOP Tutor: Ing. Juan E. Talavera Horn 2010.](https://reader036.fdocuments.net/reader036/viewer/2022081506/5665b4591a28abb57c90c153/html5/thumbnails/3.jpg)
Software para mensajes
MOM – Message Oriented Middleware JMS – Java Messaging System Sistemas de mensajes propietarios
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Modelos de mensajes
Point-to-point Publish - Subscribe
![Page 5: EJB 3.0 Message Driven Beans –Timers -AOP Tutor: Ing. Juan E. Talavera Horn 2010.](https://reader036.fdocuments.net/reader036/viewer/2022081506/5665b4591a28abb57c90c153/html5/thumbnails/5.jpg)
Modelo point-to-point
No se asegura el órden de entregaSi hay más de un interesado, se selecciona aleatoriamente a quien entregar
![Page 6: EJB 3.0 Message Driven Beans –Timers -AOP Tutor: Ing. Juan E. Talavera Horn 2010.](https://reader036.fdocuments.net/reader036/viewer/2022081506/5665b4591a28abb57c90c153/html5/thumbnails/6.jpg)
Modelo publish - subscribe
Broadcast de información a través de sistemas
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Cliente de un MDB - Productor
![Page 8: EJB 3.0 Message Driven Beans –Timers -AOP Tutor: Ing. Juan E. Talavera Horn 2010.](https://reader036.fdocuments.net/reader036/viewer/2022081506/5665b4591a28abb57c90c153/html5/thumbnails/8.jpg)
Cliente de un MDB
![Page 9: EJB 3.0 Message Driven Beans –Timers -AOP Tutor: Ing. Juan E. Talavera Horn 2010.](https://reader036.fdocuments.net/reader036/viewer/2022081506/5665b4591a28abb57c90c153/html5/thumbnails/9.jpg)
Reglas para MDBs
La clase del MDB debe implementar alguna interfaz Message Listener
La clase debe ser concreta Debe ser un POJO, y no una subclase de otro
MDB Debe ser clase pública Debe tener un constructor sin argumentos Debe implementar los métodos definidos en la
interfaz Message Listener No debe lanzar ninguna RuntimeException
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Ejemplo de MDB
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Ejemplo de MDB
![Page 12: EJB 3.0 Message Driven Beans –Timers -AOP Tutor: Ing. Juan E. Talavera Horn 2010.](https://reader036.fdocuments.net/reader036/viewer/2022081506/5665b4591a28abb57c90c153/html5/thumbnails/12.jpg)
Ejemplo de MDB
![Page 13: EJB 3.0 Message Driven Beans –Timers -AOP Tutor: Ing. Juan E. Talavera Horn 2010.](https://reader036.fdocuments.net/reader036/viewer/2022081506/5665b4591a28abb57c90c153/html5/thumbnails/13.jpg)
Ejemplo de MDB
![Page 14: EJB 3.0 Message Driven Beans –Timers -AOP Tutor: Ing. Juan E. Talavera Horn 2010.](https://reader036.fdocuments.net/reader036/viewer/2022081506/5665b4591a28abb57c90c153/html5/thumbnails/14.jpg)
Multithreading y pooling
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Timers
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Aspect Oriented Programming
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Interceptores
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@Interceptors
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@Interceptors
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@Interceptors
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Prioridades