EJB2 0 TUTORIAL PDF

EJB2 0 TUTORIAL PDF

Learn EJB Tutorial for beginners and professionals with examples. topics covers in ejb tutorial: what is ejb, session bean, stateles bean, stateful session bean. The structure of the project done through this tutorial. 0 Comment As defined in the tutorial above, an EJB is a re-usable and managed. To start, take a look at the EJB3 SLSB nce21_bean. Stateless3Bean, the EJB SLSB nce21_bean.

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EJB Tutorial

This tutorial demonstrates mechanisms for such references. Tutoriaothe EJB2. Stateless2Bean and the deployment descriptors for the EJB2. The ejb-ref element references the 3.

This mapping will make available the Stateless3 bean in the ENC java: Remember that we can provide a EJB2. Two mechanisms for referencing EJB2. The first mechanism uses annotations exclusively.

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Chapter Referencing EJB3 beans in EJB and vice versa

Note the EJBs annotation on org. The name parameter for the EJB specifies the name with which the 2. The mapped-name parameter specifies the global JNDI binding of the 2. Also note that since the bean being looked up is a EJB2. The second mechanism of referencing a EJB2.

This binds the Stateless2 bean to the ENC java: There’s a very important difference between the remote and a business-remote interface. To build and run the example, make sure you have installed JBoss ejjb2.

00 This will create the EAR in the target folder of the tutorial. Then follow the steps mentioned above, to access the servlet from the web browser. Stateless3Bean also exposes a business-remote interface, so that the org.

EJBReferenceServlet can use the business-remote interface. Important There’s a very important difference between the remote and a business-remote interface. Note To build and run tutoril example, make sure you have installed JBoss 5. To access the servlet, open a web browser and enter http: This will bring up a page where you can click on the Test button to check that the EJB2. Make sure the AS is not running.