Element Functions
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  * Function: int rdfGetElementType(RdfElement *element)

     Returns the type of the specified element (see Definitions). If the type is unknown, this returns 0. If the element is NULL, this returns -1.

       - element: The element.

  * Function: char *rdfGetElementValue(RdfElement *element)

     Returns the value of the specified element.

     Note: The returned value must be freed.

       - element: The element.

  * Function: const char *rdfGetElementPropertyName(RdfElement *element)

     Returns the name of the specified element.

       - element: The element.

  * Function: RdfNamespace *rdfGetElementNamespace(RdfElement *element)

     Returns the namespace of the specified element.

       - element: The element.

  * Function: void rdfSetElementValue(RdfElement *element, const char *value)

     Sets the value of the specified namespace.

       - element: The element.

       - value: The new value for the element.

  * Function: void rdfSetElementResource(RdfElement *element, const char *uri)

     Sets an element's resource.

       - element: The element.

       - uri: The URI of the resource.

  * Function: char *rdfGetElementResource(RdfElement *element)

     Returns an element's resource.

     Note: The returned resource must be freed!

       - element: The element.

  * Function: RdfSchema *rdfGetElementSchema(RdfElement *element)

     Returns an element's parent schema.

       - element: The element.