Configuring the ejb-jar.xml File - Oracle.
Working With the ejb-jar.xml File. For TopLink Workbench relational projects that use EJB 2.0 CMP persistence, use the ejb-jar.xml file to store persistence information for the application server. With TopLink Workbench, you can import information from an existing ejb-jar.xml file into your project, or you can create and update the ejb-jar.xml file from your project.
Writing Deployment Descriptor of Stateless Session Bean In this section we will write the deployment descriptor for the session bean. We need the deployment descriptor for application (application.xml), ejb deployment descriptors (ejb-jar.xml and weblogic-ejb-jar.xml) and web.xml files.
The format is similar to ejb-jar.xml, using some of the same namespaces and providing some other additional namespaces. The contents of jboss-ejb3.xml are merged with the contents of ejb-jar.xml, with the jboss-ejb3.xml items taking precedence.
This test is similar to simple-stateless, with two major differences. In this case all the classes are regular POJOs without annotations. The EJB-specific metadata is provided via an XML descriptor.
If both ejb-jar.xml and application-client.xml files exist in the JAR file, the product might consider a JAR file intended to be an application client module to be an EJB module or a JAR file intended to be an EJB module to be an application client module. A JAR file should not contain more than one kind of deployment descriptor.
Enterprise JavaBeans (EJB) is one of several Java APIs for modular construction of enterprise software.EJB is a server-side software component that encapsulates business logic of an application. An EJB web container provides a runtime environment for web related software components, including computer security, Java servlet lifecycle management, transaction processing, and other web services.
Check that deployment descriptors are created in Configuration Files (in projects view). Open them - ejb-jar.xml and sun-ejb-jar.xml(this one is glassfish related). Open ejb-jar.xml, general tab is opened in editor, you can see form where just Display Name is filled - it contain name of the project. XML view shows physical content of xml file.
Dear readers, these EJB 3.0 Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of EJB 3.0.As per my experience good interviewers hardly plan to ask any particular question during your interview, normally questions start with some basic concept of the subject and later they continue based on.
Furthermore, configuring these container interceptors is similar to configuring the Java EE interceptors for EJBs. In fact, it uses the same xsd elements that are allowed in ejb-jar.xml for 3.1 version of ejb-jar deployment descriptor.
Write an EJB (Enterprise Java Bean) to implement the server functionality and place it on the JBoss Server. Test the EJB by writing a servlet. Step 1: Writing a simple Ejb to retrieve current stock value. Session Bean interacts with the client and is non persistent in nature. It consists of the following components. Remote bean interface.
Container interceptors use the standard Java EE interceptor libraries, meaning they use the same XSD elements that are allowed in ejb-jar.xml file for the 3.2 version of the ejb-jar deployment descriptor. Because they are based on the standard Java EE interceptor libraries, container interceptors may only be configured using deployment.
More than a new point release, the new EJB 2.0 specification embodies dramatic changes, including those found in the CMP component model and a new bean type, that enhance the flexibility and portability in your application development. Be one of the first to learn the capabilities of that new spec, released as a public draft this month.
Deploying an EJB JAR to JBoss. In the JDeveloper integrated development environment, you can create generic J2EE EJBs. JDeveloper also supports direct deployment of EJB applications to a standalone OC4J instance, Oracle Application Server, and WebLogic 6.1 or 7.0SP1.
