problem for executing EJB QL in CMP

[caesarkim]

I have a cmp like this.

public abstract class RegistrationBean implements EntityBean
{
/*****
// extra code.
***/

public abstract Collection ejbFindByUsername(String username)throws FinderException;

public Collection ejbGetUsernameByUsername(String username) throws FinderException
{
return ejbFindByUsername(username);
}
}

public interface RegistrationHome extends EJBHome
{
public Collection getByUsername(String username) throws FinderException;

public RegistrationRemote create(Integer id) throws CreateException, RemoteException;

public RegistrationRemote findByPrimaryKey(Integer id) throws FinderException, RemoteException;
}

public interface RegistrationRemote extends EJBObject
{
public Collection GetByUsername(String username) throws FinderException,RemoteException;
}

/******************* ejb-jar.xml **********************/

<query-method>
<method-name>findByUsername</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>
</query-method>
<ejb-ql>
SELECT OBJECT( c ) FROM ADMINISTRATOR AS c WHERE c.username = ?1
</ejb-ql>


/******************************************************/

I want to access "GetByUserName" in client side, but i am a little bit confused about how to access it.

please show me how to do it..


thanks...