Inner Classes

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The generation of code for XER causes the following inner class definition to be generated:

   public class SaxHandler : Asn1XerSaxHandler {
 
      Asn1XerSaxHandler mElemSaxHandler;
 
      StringBuffer mCurrElemValue;
 

 
      internal SaxHandler() {
 
         <code ..>
 
      }
 

 
      public void StartElement (string namespaceURI, string localName,
 
                                string qName, Attributes atts)
 
      {
 
         <code ..>
 
      }
 

 
      public void Characters (char[] ch, int start, int length)
 
      {
 
         <code ..>
 

}

      public void EndElement (string namespaceURI,
 
                              string localName, string qName)
 
      {
 
         <code ..>
 
      }
 
   }
 

This is an implementation of a standard SAX content handler class. As the XML parser software parses messages, the methods within this class are invoked with the parsed content. The StartElement method is invoked after a start element tag (<tag>) is parsed. The Characters method is invoked one or more times to pass the content between tags into the application. The EndElement method is invoked when an end element tag (</tag>) is encountered.

The ASN1C compiler generates custom code for each ASN.1 type within a given specification to parse the XML contents and fill in the generated C# objects.