hi all .............
here is my small example :
1.Fierst Remote Interface
| import javax.ejb.Remote;
|
| @Remote
| public interface Person {
| public void addPersonName(String a);
| public void printNames();
| }
|
2. And It's Implementation :
| import java.util.ArrayList;
| import javax.ejb.Remote;
| import javax.ejb.Stateful;
| import javax.ejb.TransactionAttribute;
| import javax.ejb.TransactionAttributeType;
|
| @Stateful
| @Remote(Person.class)
| public class PersonBean implements Person
| {
| ArrayList<String> list = new ArrayList<String>();
| @TransactionAttribute(TransactionAttributeType.REQUIRED)
| public void addPersonName(String name)
| {
| list.add(name);
| }
| @TransactionAttribute(TransactionAttributeType.SUPPORTS)
| public void printNames()
| {
| for (int i = 0; i < list.size(); i++)
| {
| System.out.println("Name = "+list.get(i));
| }
| }
| }
|
3. Second Remote Interface :
| import javax.ejb.Remote;
| @Remote
| public interface UsePerson {
| public void callPrint()throws Exception;
| }
|
4. And It's Implementation :
| @Stateful
| @Remote(Fasade.class)
| public class UsePersonBean implements UsePerson
| {
| @EJB
| Person person;
| @TransactionAttribute(TransactionAttributeType.REQUIRED)
| public void callPrint() throws Exception
| {
| try
| {
| test.printNames();
| }
| catch (Exception e)
| {
| e.printStackTrace();
| }
| }
|
| }
|
5. Client code :
| public class TestClient
| {
| public static void main(String[] args)
| {
| try
| {
| Properties jndiProps = new Properties();
| jndiProps.setProperty(Context.INITIAL_CONTEXT_FACTORY,
|
"org.jnp.interfaces.NamingContextFactory");
| jndiProps.setProperty(Context.URL_PKG_PREFIXES,
| "org.jboss.naming:org.jnp.interface");
| jndiProps.setProperty(Context.PROVIDER_URL,
| "jnp://127.0.0.1:1099");
| InitialContext ctx = new InitialContext(jndiProps);
|
| UsePerson useperson = (UsePerson)
ctx.lookup("UsePersonBean/remote");
| Person person = (Person)
ctx.lookup("PersonBean/remote");
| person.addPersonName("Piter");
| person.addPersonName("John");
| person.addPersonName("Miles");
| person.addPersonName("Trubambas"); // :)
| bean.callPrint();
| }
| catch (Exception e)
| {
| e.printStackTrace();
| }
| }
| }
|
my task is that i want to get current Person reference in UsePersonBean which
created by client.
i think @EJB annotation alwayes makes new reference.
could anybody tell me how i can get current session objects ??
like HTTPSession in Servlets ....
is it right if i use
| private @Resource SessionContext ctx;
|
but somewhere i found that "private @Resource SessionContext ctx;" and "@EJB
annotation" are the same.
thanks.
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