Java™ Application Development on Linux - Dator

23.2 Lend Me Your EAR: Enterprise Packaging and Deployment511Example 23.4 Sample jboss.xml filetest/Moneyejb/MoneyThe two tags define the mapping: You use the jndi-name in thelookup() method and it will (try to) find the EJB named with the ejb-nametag. The ejb-name tag is also used in the ejb-jar.xml file. This provides theassociation between the two, and the mapping from the JNDI name to EJB isthereby defined.To summarize, if we want to build an EJB-JAR file, we will need to gatherall the class files in their appropriate classpath directory structures. Then wewill need to write two XML files and place them in the META-INF directoryalong with the MANIFEST.MF file. The two XML files will define the EJB piecesand provide a name mapping for locating this bean. Then put all these piecestogether into a JAR file, and you have an EJB-JAR file.23.2.2 Using Our BeanWe have put a lot of pieces in place to get a bean that we can call from acrossthe enterprise. But what does that call look like? How might we make use ofthe bean?The first step is to make contact with the JNDI service and locate thehome interface for the bean. It looks like the section of code in Example 23.5.