A deployment descriptor is a configuration file for a web application or EJB application which is to be deployed to web or EJB container. The deployment descriptor should contain standard structural information for all enterprise beans in an EJB application. The file name is ejb-jar.xml The descriptor of EJB informs the EJB server about the classes that make up the implementation of bean, the both home and remote interfaces. A standard deployment descriptor should contain structural information for each enterprise bean.
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