[NEW ISSUE] WS-Enumeration - optimize enumerate

As an optimization it would be nice if the client could ask for the first 
chunk of data (from the first Pull()) to be returned within 
EnumerateResponse message.

Proposal:

Add a new wsen:Pull element as a child of wsen:Enumerate in the Enumerate 
request:
    <wsen:Enumerate ?>
      <wsen:EndTo>endpoint-reference</wsen:EndTo> ?
      <wsen:Expires>[xs:dateTime | xs:duration]</wsen:Expires> ?
      <wsen:Filter Dialect="xs:anyURI"?> xs:any </wsen:Filter> ?
      <wsen:Pull>
        <wsen:MaxTime>xs:duration</wsen:MaxTime> ?
        <wsen:MaxElements>xs:long</wsen:MaxElements> ?
        <wsen:MaxCharacters>xs:long</wsen:MaxCharacters> ?
      </wsen:Pull> ?
      ?
    </wsen:Enumerate>

/Pull
  basically the same as the Pull operation itself. If the data source
  is unable to satisfy this request then it MAY choose to ignore this
  element.

and add wsen:Items and wsen:EndOfSequence to the EnumerateResponse:
    <wsen:EnumerateResponse ?>
      <wsen:Expires>[xs:dateTime | xs:duration]</wsen:Expires> ?
      <wsen:EnumerationContext>?</wsen:EnumerationContext>
      <wsen:Items>
        <xs:any> enumeration-specific element </xs:any> +
      </wsen:Items> ?
      <wsen:EndOfSequence/> ?
      ?
    </wsen:EnumerateResponse>

/Items
/EndOfSequence
  same as the Pull response stuff.

thanks
-Doug
______________________________________________________
STSM  |  Web Services Architect  |  IBM Software Group
(919) 254-6905  |  IBM T/L 444-6905  |  dug@us.ibm.com