However, an optional deployment descriptor can be included and it will then override the defaults and the settings given by the annotations in the source code. JEE 5, on the other hand, relies on default values, and as long as the default values are acceptable, you do not need to include a deployment descriptor.

In previous J2EE versions, deployment descriptors were necessary to tell the application server how to deploy the modules and how clients should locate EJB interfaces, for example. JEE 5 Application EAR file EAR DD EAR Ext DD EAR Bind DD EAR Ext PME DD EJB EJB Module 3.0 Module Web Module Web Module Java Utility Java Utility Module JAR EJB DD EJB Bind DD Web DD Web Bind DD EJB Ext DD EJB Ext PME DD Web Ext DD Web Ext PME DD Web Svcs DD Resource Resource Adapter Adapter Application Client Module JPA Persistence Unit Resource DD Client DD Client Bind DD Persistence DD ORM DD Client Ext DD Client Ext PME DD Figure 1 JEE 5 EAR file structure 2 WebSphere Application Server V7: Packaging Applications for Deployment 3 One major difference between JEE 5 applications and previous J2EE applications is that, if the source code is properly annotated, in many cases the EAR file or modules do not need to contain any deployment descriptors. With the introduction of JEE 5 developing, packaging and deploying Java enterprise applications have been greatly simplified.Īs with previous versions of the Java 2 Enterprise Edition (J2EE ) specification JEE 5 applications are packaged in Enterprise Archive (EAR) files.Īn EAR file can contain Web Archive (WAR) files, EJB modules (packaged as EJB JARs), Resource Adapter Archive (RAR) files, Java Utility Projects (packaged as JAR files), and Application Client modules.

Db2Jcc Cisuz.Jar File Code With InformationĪnnotations also reduce the number of classes and interfaces the developer needs to manage within the project.

Db2jcc license cisuz.jar file download