Friday 22 April 2011

JavaEE: Using @EJB annotation

Shows use of @EJB in a Stateless to have another Stateless bean injected into it.Using Jboss 5 + Seam framework


Bean:
@Stateless
@Name(DataStoreImpl.COMPONENT_NAME)
@Scope(ScopeType.STATELESS)
public class DataStoreImpl implements DataStoreLocal{
        public static final String COMPONENT_NAME = "dataStoreImpl";

 @EJB
 protected Test test;

 public String getData() {
  // using test
 }
}
Local business interface:
@Local
public interface DataStoreLocal {
 
 public String getData();
 
}
Call:
DataStoreLocal data = (DataStoreLocal) Component.getInstance(
     DataStoreImpl.COMPONENT_NAME, true);

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