Apama Documentation : Connecting Apama Applications to External Components : Standard IAF Plug-ins : Codec IAF Plug-ins : The XML codec IAF plug-in : Supported XML features
Supported XML features
The XML codec can convert messages that contain the following:
*Elements
*Attributes
*Text nodes
*CDATA nodes, including CDATA nodes that contain an XML document to be parsed
CDATA nodes are supported only in the downstream direction.
*Namespace prefixes and definitions (only basic support)
*XPath expressions, including functions
Result types of XPath expressions must be simple. For example,
string contains();
The XML codec cannot convert XML data that contains the following XML features:
*Document type specifiers
*Processing instructions
*Notations and entities
*XML with more than one top-level (root) element
*Node or nodeset XPath expressions
For Node or nodeset XPath expressions, only the first match is returned.
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