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entity bean client view question

Prashant Neginahal
Ranch Hand

Joined: Sep 14, 2002
Posts: 77
Hi All,
In EJB spec, it is given as below at page no 119.

A client can get a reference to an existing entity object�s remote interface in any of the following ways:

1) Receive the reference as a parameter in a method call (input parameter or result).
2) Find the entity object using a finder method defined in the entity bean�s remote home interface.
3) Obtain the reference from the entity object�s handle. (see Section 9.11)

Can somebody explain first one? I assume client can receive reference as ONLY RETURN parameter in method call. What is input parameter mentioned in the bracket.

Thanks,
Prashant


Thanks, <br />Prashant<br />SCJP, SCBCD
Keerthi P
Ranch Hand

Joined: Aug 19, 2003
Posts: 203
Assume you have two clients C1 and C2 accessing an entity bean E1. C1 looksup E1 and passes the reference to the beans remote object to a C2's method as a parameter. This is just one case substantiating the point 1. Its a simple thing, but sounds so difficult in the spec - An entity bean's remote object's reference can be received as a parameter of a method.


Cheers.<br />Keerthi<br />(SCJP, SCWCD, SCBCD)
Prashant Neginahal
Ranch Hand

Joined: Sep 14, 2002
Posts: 77
Thanx Keerthi. Indeed it is simple but sounds difficult to understand.

-Prashant
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: entity bean client view question