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Rich Salz wrote: > > > **Roughly speaking**, WXS "sequence"s are mapped to ASN.1 > SEQUENCEs, > > while WXS "all"s are mapped to ASN.1 SEQUENCEs plus explicit > > information about the order. The order is made a part of > the abstract > > type definition and so is made available to the ASN.1 application. > > Hm. This means an XML->ASN1/xER gateway must possibly > re-order elements within an all? Could be expensive, having > to buffer the entire all, right? Why is it expensive? As elements are parsed from the stream, each element can be decoded into the corresponding component of the SEQUENCE (matched by name), and an enumerator value identifying the component can be appended to the "order" component (the list of enumerator values). Why do you say one has to buffer the entire "all"? Alessandro > /r$ > -- > Rich Salz Chief Security Architect > DataPower Technology http://www.datapower.com > XS40 XML Security Gateway http://www.datapower.com/products/xs40.html > XML Security Overview > http://www.datapower.com/xmldev/xmlsecurity.ht> ml > > > > > ----------------------------------------------------------------- > The xml-dev list is sponsored by XML.org > <http://www.xml.org>, an initiative of OASIS <http://www.oasis-open.org> The list archives are at http://lists.xml.org/archives/xml-dev/ To subscribe or unsubscribe from this list use the subscription manager: <http://lists.xml.org/ob/adm.pl>
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