RE: [wsbpel] implicite links of the runtime engine (was: Implicit <sequence> macro)

["Eckenfels. Bernd" <B.Eckenfels@seeburger.de>]

Hello Satish,

>I honestly don't think <sequence> needs to justify its existence.
>Concurrency with synchronization can emulate sequentiality but that is
>clearly a convoluted and expensive way to do the simplest kind of
>orchestration.

This may be true from the standpoint of writing bpel by hand, but for sure it is a non issue for implementation. Depending on your internal runtime data model, a sequence is only an additional complication, provided the fact, that you need to offer a implementation for flow, anyway. And since a sequence does not forbid to have links in and out, it also means your engine has to support the notion of synchronisation, anyway.

So we should make clear in the spec, that it is only a shortcut, for skipping those links inside a sequential flow, but all other properties will apply, anyway.

Greetings
Bernd