Re: [sca-bpel] Issue 61: proposal

[Anish Karmarkar <Anish.Karmarkar@oracle.com>]

Resending with ed fixes:

The WS-BPEL specification requires that the variable initialization 
logic in scopes that contain (or whose children contain) a start 
activity use only idempotent functions in the from-spec. In an SCA 
WS-BPEL Runtime, variables associated with SCA properties and 
multi-valued reference are set by the runtime based on the configuration 
of the containing composite. Therefore, the idempotency is guaranteed 
only for a given SCA domain-level composite. The SCA Assembly 
specification allows for a variety of implementation choices including 
ones that allow dynamicity for the SCA domain-level composite. See 
Sections 10.7.1, 10.7.2, 10.8 and 10.9. For such runtimes, the 
properties and multi-valued references may change, if the domain-level 
composite is modified.

-Anish
--

On 1/14/2010 12:15 AM, Anish Karmarkar wrote:
> At the end of section 3.1 Properties we add the following text:
> 
> The WS-BPEL specification requires that the variable initialization 
> logic in scopes that contain (or whose children contain) a start 
> activity use only idempotent functions in the from-spec. In an SCA 
> WS-BPEL Runtime, variables associated with SCA properties and 
> multi-valued reference are set by the runtime based on the configuration 
> of the containing composite. Therefore, the idempotency is guaranteed 
> only for a given SCA domain-level composite. The SCA Assembly 
> specification allows for a variety of implementation including ones that 
> allow dynamicity for the SCA domain-level composite. See Sections 
> 10.7.1, 10.7.2, 10.8 and 10.9. For such runtimes, the properties and 
> muti-valued references may change with a change in the domain-level 
> composite.
> 
> Comments?
> 
> -Anish
> -- 
> 
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