Java Deployment Descriptor

• The deployment descriptor objects are used to establish the runtime service settings for an enterprise bean
• This object defines the enviromental properties , along with the enterprise bean class name, the
• JNDI namespace,the home and remote interface name
• It has two types depending on the requirements,Session descriptor and entity descriptor
• The deployment descriptor also contains detailed inforamtion about how the bean should execute regarding transaction and security
• The deployment descriptor provides the full description of all files in the ejb jar
• Deployment descriptor is defined in a XML based format having some standard tags and attributes