None of this is relevant to/required for Flash Player -to- FDS communication, but to give you an example where it is relevant in Java: It's a requirement of Java RMI: http://java.sun.com/j2se/1.4.2/docs/guide/rmi/faq.html#whyserial Also, serialVersionUID can be used to implement custom class versioning between two RMI endpoints: http://www.oreilly.com/catalog/javarmi/chapter/ch10.html#80735 (Note that some of the built-in Java representations of some ActionScript types and some DataServices types have to implement Serializable because communication with ColdFusion 7 is done via RMI). Pete
________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Kevin Sent: Wednesday, May 09, 2007 1:28 PM To: [email protected] Subject: Re: [flexcoders] is Serializable needed? I must admit, being new to FDS/Java, can you give any examples of specific use cases where we would need to implement Serializable? We are using FDS with RTMP (& possibly messaging in the future). We are persisting everything with Hibernate/MySQL. >From what I can tell we don't need it, but like I said, I am new to this. Thanks! - Kevin On May 9, 2007, at 10:44 AM, Peter Farland wrote: FDS 2 does not require types to implement Serializable. The value of serialVersionUID really should be generated using the serialver command line tool that ships with the JDK... which is a pain to do each time you add a new class. If you don't need them to be Serializable, then I suggest not implementing this interface. ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Kevin Sent: Wednesday, May 09, 2007 9:15 AM To: [email protected] Subject: Re: [flexcoders] is Serializable needed? I guess it can't hurt to have them Serializable. I'll add the static final. Thanks, Kevin On May 9, 2007, at 9:02 AM, Sean Sell wrote: I don't don't know about hibernate but I'm pushing some object onto a JMS topic and they need to be serialized. to get rid of your error add to your class: public static final long serialVersionUID = 1L; you only need to update the version ID with changes if you actually store the serialized version and want make sure your not loading and old one. ----- Original Message ---- From: Kevin <[EMAIL PROTECTED]> To: [email protected] Sent: Wednesday, May 9, 2007 8:47:13 AM Subject: [flexcoders] is Serializable needed? do java classes need to implement java.io.Serializabl e for use with FDS/Hibernate? If not is there another reason to do this? Eclipse keeps giving me warnings whenever I implement this? "The serializable class AddressVO does not declare a static final serialVersionUID field of type long" Thanks, Kevin ________________________________ Food fight? <http://answers.yahoo.com/dir/index;_ylc=X3oDMTFvbGNhMGE3BF9TAzM5NjU0NTE wOARfcwMzOTY1NDUxMDMEc2VjA21haWxfdGFnbGluZQRzbGsDbWFpbF90YWcx?link=ask&s id=396545367> Enjoy some healthy debate in the Yahoo! Answers Food Drink Q&A. <http://answers.yahoo.com/dir/index;_ylc=X3oDMTFvbGNhMGE3BF9TAzM5NjU0NTE wOARfcwMzOTY1NDUxMDMEc2VjA21haWxfdGFnbGluZQRzbGsDbWFpbF90YWcx?link=ask&s id=396545367>
