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h1. EJB3 Examples

All examples come with JUnit unit tests that can be run in any IDE, Maven or Ant without special plugins using OpenEJB as an embedded EJB container.  The easiest way to run the examples in your IDE is to use maven ({{mvn eclipse:eclipse}} or {{mvn idea:idea}}) to generate project descriptors.

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|| title || description || APIs used ||
| {div:class=Cel1}*[Simple Stateless|Simple Stateless Example]*{div} | Simple EJB3 *@Stateless* bean with local and remote business interfaces and unit test. |  - javax.ejb.Remote
 - javax.ejb.Local
 - javax.ejb.Stateless
|
| *[Simple Stateful|Simple Stateful Example]* | Simple EJB3 *@Stateful* bean with local and remote business interfaces and unit test. |  - javax.ejb.Remote
 - javax.ejb.Stateful
|
| *[EJB 2.1 Compatibility|EJB 2.1 Compatibility Example]* | Shows an EJB 3.0 Stateful bean with Business interfaces and EJB 2.1 interfaces (now called "component" interfaces) using the *@LocalHome* and *@RemoteHome*. Four interfaces in total. |  - javax.ejb.CreateException
 - javax.ejb.EJBHome
 - javax.ejb.EJBLocalHome
 - javax.ejb.EJBLocalObject
 - javax.ejb.EJBObject
 - javax.ejb.Init
 - javax.ejb.Local
 - javax.ejb.LocalHome
 - javax.ejb.Remote
 - javax.ejb.RemoteHome
 - javax.ejb.Remove
 - javax.ejb.Stateful
|
| *[Injection of env-entry|Injection of env-entry Example]* | Shows how *@Resource* can be used to inject *{{env-entry}}* values declared in an ejb-jar.xml file |  - javax.annotation.Resource
 - javax.ejb.Local
 - javax.ejb.Remote
 - javax.ejb.Stateful
|
| *[Injection of env-entry 2|Custom Injection]* | Same as the above example but shows how to use a *properties file* to declare the injection values and demonstrates how to get injection of *more types* such as java.util.Date, java.lang.Class, java.net.URI and more.  _OpenEJB specific feature_. |  - javax.annotation.Resource
 - javax.ejb.Stateless
|
| *[Injection of other EJBs|Injection of other EJBs Example]* | Shows use of *@EJB* in a Stateless to have another Stateless bean injected into it. |  - javax.ejb.EJB
 - javax.ejb.Local
 - javax.ejb.Remote
 - javax.ejb.Stateless
|
| *[Injection of DataSource|Injection of DataSource Example]* | Shows use of *@Resource* to have a JDBC *DataSource* injected into a Stateful bean.  The Stateful bean does basic INSERT, SELECT and DELETE SQL operations. |  - javax.annotation.PostConstruct
 - javax.annotation.Resource
 - javax.ejb.Stateful
 - javax.sql.DataSource
|
| *[Injection of EntityManager|Injection of EntityManager Example]* | Shows use of *@Resource* to have an *EntityManager* with an *EXTENDED* persistence context injected into a @Stateful Statefulbean.  An EJB 3 @Entity bean is used with the EntityManager to create, persist and merge data to a database. |  - javax.ejb.Stateful
 - javax.persistence.Entity
 - javax.persistence.EntityManager
 - javax.persistence.PersistenceContext
 - javax.persistence.PersistenceContextType
 - javax.persistence.Query
|
| *[Embedded and Remotable]* | Demonstrates how to use an OpenEJB feature that allows people embedding OpenEJB into their applications to support remote clients in other VMs.  This is not required for unit testing. |  - javax.ejb.Remote
 - javax.ejb.Stateful
|
| *[Helloworld Weblogic]* | Demonstrates OpenEJBs ability to understand and support the WebLogic deployment descriptors so people using that platform in production can still use OpenEJB in their IDE or build to unit test their EJB applications. |  - javax.ejb.CreateException
 - javax.ejb.EJBLocalHome
 - javax.ejb.EJBLocalObject
 - javax.ejb.LocalHome
 - javax.ejb.Stateless
|
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