Your description is correct.
Vlada
----- Original Message -----
From: Richard Monson-Haefel <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, November 23, 1999 8:19 AM
Subject: Primary Key types
> Its my understanding that a single field primary key can be a String or
> primitive wrapper or any Java RMI-IIOP compliant class that can be
> mapped to a corresponding field in the bean class. This means, for
> example, that an Integer class could be a primary key, but so could
> java.math.BigInteger or a java.security.Principal serializable
> implementation (purely illustrative example). In sort any class that is
> serializable, compliant to Java RMI-IIOP value types, and implements
> hashCode and equals appropriately can be a single field primary key.
>
> While a primitive wrapper can be single field primary key, a primitive
> type (int, long, double, etc.) can not. This seems to be true because
> of the semantics of the ejbCreate( ) and EJBObject.getPrimaryKey( )
> which require that a object type be returned. (CMP bean must return null
> from ejbCreate( ), which won't work if the key is a primitive.)
>
> I'm looking for a confirmation of these assumptions from a Sun EJB
> authority, but I have posted this to the EJB-INTEREST because I believe
> this information will benefit the enter community.
>
> --
> Richard Monson-Haefel
> EJB Expert for jGuru.com
> ( http://www.jguru.com )
>
> Author of Enterprise JavaBeans
> Published by O'Reilly & Associates
> ( http://www.ejbnow.com )
>
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>
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