The only time a lookup is needed

[Himai Minh]

On Frits' notes, p.63,

7.1 @EJB - injecting an EJB
The only time a lookup is needed is when the @EJB and @Resource is declared on the bean class.

I believe a lookup is also needed when an EJB is injected, like this example on p.66:

@EJB (lookup="java:app/echoejb/TheFirstBean")  //a lookup is needed for injection.
FirstBI anotherFirst;
...

@Stateless (name="TheFirstBean")
public class FirstBean implements FirstBI {...}

[Frits Walraven]

What I meant by that remark is that the lookup is not needed in line number 9.

@Stateless
@LocalBean
public class InjectedBean {
 @EJB EchoBeanRemote echo; 
 @Resource SessionContext context;

  public String getInjectedBean(String phrase) {
    EchoBeanRemote g = (EchoBeanRemote) context.lookup ("java:comp/env/nl.notes.ejb.InjectedBean/echo");
    return g.echo(phrase);
  }
}

The following code would be sufficient:

@Stateless
@LocalBean
public class InjectedBean {
 @EJB EchoBeanRemote echo; 
 @Resource SessionContext context;

  public String getInjectedBean(String phrase) {
    echo(phrase);
  }
}

Although the code above doesn't look like it has a lookup of the EJB it certainly does a lookup because "Each injection of an object corresponds to a JNDI lookup" (page 63)