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Describe the SOAP mustUnderstand attribute ?

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Describe the SOAP mustUnderstand attribute ?
posted Jan 11, 2014 by anonymous

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1 Answer

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The SOAP mustUnderstand attribute can be used to indicate whether a header entry is mandatory or optional for the recipient to process.
If you add mustUnderstand="1" to a child element of the Header element it indicates that the receiver processing the Header must recognize the element. If the receiver does not recognize the element it will fail when processing the Header.
Syntax
soap:mustUnderstand="0|1"

Example

<?xml version="1.0"?>
<soap:Envelope
xmlns:soap="http://www.www.org/2010/12/soap-envelope"
soap:encodingStyle="http://www.www.org/2010/12/soap-encoding">

<soap:Header>
<m:Trans xmlns:m="http://www.www.org/2010/12/transaction/"
soap:mustUnderstand="1">234
</m:Trans>
</soap:Header>
...
...
</soap:Envelope>
answer Jan 11, 2014 by Vikas Upadhyay
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