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Subject: Re: [wsbpel] Re: Issue 304 - discussion - clarification on whether the QName of a fault needs to be unique across all portTypes and operations

On 7/24/06, Prasad Yendluri <pyendluri@webmethods.com> wrote:

>Assaf Arkin wrote:
>On the other hand, WSDL 2.0 does exactly that. Each operation has a name property of type QName, and the spec clearly indicates two operations may >share the same QName:
>So it's a matter of which precedent you prefer to judge by. I don't see a problem with the fault QName, I think it keeps the catch as simple as it possibly can be.

The WSDL 2.0 spec says,

a) "For each Interface Operation component in the { interface operations} property of an Interface component, the { name} property MUST be unique. †"

This talks about unique names withing the same interface, the case I'm talking about is having two operations with the same name in two different (and unrelated) interfaces.


c) Where "Two component instances of the same type are considered equivalent if, for each property of the first component, there is a corresponding property with an equivalent value on the second component, and vice versa."

In case of two different operations with the same QName coming from two different interfaces, although they have the exact same QName, they are not equivalent since they differ by at least one property: their parents.

So, WSDL 2.0 first is defining the operation name to be a QName ( {name} REQUIRED. An xs:QName.) and says when the same QName is used on two different operations, they MUST be equivalent.

Only if they belong to the same interface, directly or indirectly (through inheritence).


This is very different from WSDL 1.1 fault name where the fault name is first not defined to be a QName and it is defined to be unique only within the context of a specific operation and in a specific portType.

This is comparing apples and oranges. One does not follow from the other.


CTO, Intalio

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