A sample ejb-jar.xml (EJB 3.0)

ejb-jar.xml is optional starting from EJB 3.0. Annotations are extensively used to declare metadata in place of descriptor elements. In certain cases, ejb-jar.xml is still necessary, and 2 such cases I can think of are the declaration of env-entry and default interceptor.

<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
version="3.0" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd">
<description>admin email</description>


This ejb-jar.xml assumes that TestBean is already annotated with either @Stateless or @Stateful. The descriptor adds a env-entry resource to this session bean's naming environment. This env-entry can be injected into TestBean class, or looked up in TestBean's naming environment.

The interceptor-binding element binds Interceptor1 to all EJBs packaged in the current ejb jar.


Данечкин said...

you can use interceptors without ejb-jar.xml
you can annotate your bean with


javahowto said...

@Interceptors can only be used for class-level and method-level interceptors. For default interceptors, which apply to all EJBs in the ejb jar, you have to use ejb-jar.xml.

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