1 Reply Latest reply on Mar 26, 2010 7:16 PM by thokuest

Possible to use @EJB or @In for ejb3 packed in another archive?

mike82 Mar 26, 2010 11:33 AM

I keep trying to instantate my session bean from another jar archive in seam. I managed to instantate it via jndi lookup:

InitialContext ctx = new InitialContext();
                        MyBeanLocal ctjc = 
                                (MyBeanLocal)ctx.lookup(
                                                "MyBean /local");

and finally entity manager (aquired there by @PersistenceContext) is created (not null). However I still can't achieve the same thing using @EJB or @In annotation. Is it possible? I tried all arguments, beanName, beanInterface, mappedName, name and each time my session bean is null or created like POJO.

My components.xml has jndi-pattern set up like this:

<core:init debug="true" jndi-pattern="#{ejbName}/local"/>

So I guess if it would be possible to use annotation Seam would find my bean?

1. Re: Possible to use @EJB or @In for ejb3 packed in another archive?

thokuest Mar 26, 2010 7:16 PM (in response to mike82)

I see two options to obtain EJBs from an external archive:

1) Define your EJB components via components.xml

<?xml version="1.0" encoding="UTF-8"?>
<components ...>
    <!-- [...] -->

    <component name="ctjc" jndi-name="MyBean/local" class="package.MyBeanLocal" ... />

    <!-- [...] -->
</components>

2) Using @Factory annotation

@Name("ejbFactory")
@AutoCreate
public class EJBFactory {
    // ...
    private @Logger Log log;

    private Object lookup(String jndiName) {
        Context ctx = new InitialContext();

        try {
            return ctx.lookup(jndiName);
        } catch (Exception e) {
            log.warn("EJB lookup failed", e);
            return null;
        }
    }

    @Factory(autoCreate=true, ...)
    public MyBeanLocal getCtjc() {
        return (MyBeanLocal) lookup("MyBean/local");
    }
    // ...
}

You should be able to use your EJB in your components as follows:

public class FancyComponent {
    // ...
    private @In MyBeanLocal ctjc;
    // ...
}

I hope that helps!