Web Services Quiz: Issue 5 - the Answer

The answer to Issue 5 is the following:

<wsp:MessagePredicate wsp:Usage="wsp:Required"

xmlns : it ="uri:isssue5/types"

xmlns : iw ="uri:isssue5/wsdl">

wsp:GetBody(.)/iw:reqMsg/it:something > 4

</wsp:MessagePredicate>

Since this quiz involves different problem domains I’ve decided to split the explanation into 4 different postings:

• Step 1: How to define a <MessagePredicate>
• Step 2: How to define the XPath expression
• Step 3: How to improve the messaging experience
• Step 4: How to make it better

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