for new object, stableId() not the same before/after persist

[Yan]

Hi there, 

I have an entity proxy object that is created on the client. After persisting into server, I would expect the returned proxy (from server) has the same stableId() (i.e., the two equals)

But this is not happening. I thought GWT documentation says the two should equal to each other. Am I missing something?  Here is the code. 

MyObjectProxy value = request.create(MyObjectProxy.class)            // value.getId() is NULL, stableId() has some value in it

request.persist(value).fire(Receiver(MyObjectProxy response) {          // response.getId() is not null,   stableId() has some value in it

     boolean isSame = response.stableId().equals(value.stableId());     // isSame return false     

} 

Thanks,

yan

[Thomas Broyer]

Looks very much like a bug yes. 

[RickL]

Yan,

See this post: http://stackoverflow.com/questions/6544276/how-stable-is-stableid.

The important part is: "The one exception to the global scope of an EntityProxyId is the id of a newly-created EntityProxy that has not yet been persisted on the server. An "ephemeral" id is only usable with the RequestFactory from which the newly-created proxy object is derived. Once the proxy has been sent to the server and the server has provided a non-null id, the ephemeral id is upgraded to a persistent id and becomes indistinguishable from any other persistent id."

I believe that means it is working as designed. 

Rick

[Thomas Broyer]

On Thursday, September 27, 2012 9:20:55 PM UTC+2, RickL wrote:

Yan,

See this post: http://stackoverflow.com/questions/6544276/how-stable-is-stableid.

The important part is: "The one exception to the global scope of an EntityProxyId is the id of a newly-created EntityProxy that has not yet been persisted on the server. An "ephemeral" id is only usable with the RequestFactory from which the newly-created proxy object is derived. Once the proxy has been sent to the server and the server has provided a non-null id, the ephemeral id is upgraded to a persistent id and becomes indistinguishable from any other persistent id."

I believe that means it is working as designed. 

Given that we're talking about BobV here (author of RequestFactory), I'd tend to agree (and knowing the internals of the EntityProxyId, I was really perplex at how to make it work as described in the Javadoc).

The Javadoc is then absolutely wrong though, as it explicitly says the contrary!