ejb

问题 May be the best way is doing it manually. But in a large project you need some tool to assist you. It was the idea that led me to search a tool. Are there any EJB migration tools available for migrating EJB 2.0 to 3.x. 回答1: It was only under development for a short time, but for a period we did have an eclipse plugin that would read in ejb-jar.xml files and then update the source and insert the annotations. It's been used a handful of times by the person who wrote it (Jonathan Gallimore) and

问题 my current problem in general is, that i have two Wildfly 8.2.0Final instances running on my machine. I know, there are similar questions, but none of them really help with my problem. One of them holds a restful application that triggers a stateless session bean SenderBean when it receives a GET. Afterwards, this stateless session bean should invoke a method from a remote stateless session bean PrintBean , which is located on the other wildfly instance. I'll start of by explaining what i

问题 my current problem in general is, that i have two Wildfly 8.2.0Final instances running on my machine. I know, there are similar questions, but none of them really help with my problem. One of them holds a restful application that triggers a stateless session bean SenderBean when it receives a GET. Afterwards, this stateless session bean should invoke a method from a remote stateless session bean PrintBean , which is located on the other wildfly instance. I'll start of by explaining what i

问题 I am trying to write a simple stateless sesssion bean but I have problem with narrow reference I give in lookup time. I got class cast exeption I use eclipse IDE my bean class package codes; import java.rmi.RemoteException; import javax.ejb.EJBException; import javax.ejb.SessionBean; import javax.ejb.SessionContext; public class SinaBean implements SessionBean { /** * */ private static final long serialVersionUID = 1L; public String getHello() { return "hello"; } public void ejbCreate(){ }

问题 I am confused between these two nuances: Is EJB itself middleware, or is there any middleware used in the deployment of EJB? Same goes for RMI- is RMI itself middleware or is middleware used in RMI? 回答1: Define Middleware, if it is in the middle what is it between? I agree with the basic idea of this Wikipedia definition: Middleware is a computer software that provides services to software applications beyond those available from the operating system. It can be described as "software glue".[1

问题 I' have a problem with injecting StoreBean into Restful service. I have reduecd code little bit to get a point. Here is the code(DataStoreBean): @Local(DataStore.class) @Stateless public class DataStoreBean implements DataStore { public String get() { return "works"; } } and here is code for RestEndpoint: @RequestScoped @Path("/DataStore") @Produces(MediaType.APPLICATION_JSON) @Consumes(MediaType.APPLICATION_JSON) public class DataStoreRestEndpoint { @EJB DataStoreBean dataStore; @GET @Path("

问题 I am currently using Glassfish v2.1 and I have set up a queue to send and receive messages from with Sesion beans and MDBs respectively. However, I have noticed that I can send only a maximum of 1000 messages to the queue. Is there any reason why I cannot send more than 1000 messages to the queue? I do have a "developer" profile setup for the glassfish domain. Could that be the reason? Or is there some resource configuration setting that I need to modify? I have setup the sun-resources.xml

问题 This question already has answers here : When to use Stateful session bean over Stateless session bean? (2 answers) Closed 5 years ago . I'm new to EJB, and I'm trying to understand the diference between Stateless and Stateful bean, so I made a simple example to test them. @Stateless public class Service { private int num; public Service(){ } public int getNum() { return num; } public void setNum() { this.num++; } } @WebServlet("/Controller1") public class Controller1 extends HttpServlet {

问题 This question already has answers here : When to use Stateful session bean over Stateless session bean? (2 answers) Closed 5 years ago . I'm new to EJB, and I'm trying to understand the diference between Stateless and Stateful bean, so I made a simple example to test them. @Stateless public class Service { private int num; public Service(){ } public int getNum() { return num; } public void setNum() { this.num++; } } @WebServlet("/Controller1") public class Controller1 extends HttpServlet {

问题 I have am deploying 2 EARs onto JBoss AS 7.1.0.Alpha1-SNAPSHOT (post 7.0.1.Final version). Both deploy fine. I have an EJB Singleton class packaged within a JAR, within one of the EARs: @Startup @Singleton // one of @Local(Store.class), @Remote(Store.class), @LocalBean @TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED) @Transactional(TransactionPropagation.SUPPORTS) public class StoreFront implements Store { ... public interface Store { ... When it deploys, it says the EJB is bound