Xml doc as a return value of an RPC-style SOAP call

Question

Hi all,
Which is the best way of having an xml Document returned as the result of
the execution of an RPC-style SOAP call ?
My distributed service currently returns an xml Document and i would like to
make it web/http available without an unaffordable cost (i.e. double
parsing, two much memory consumtion, etc.).
Is there anyway i can mark my service return as an internal xml in the xml
soap response (and therefore, for instance, be able to apply specific schema
validation processes in the client side).
Thanks in advance

Answer 1

You do need to write xmlReadObj.toXMLString() to file to update it with the new value. Here's how I do it in xtools/xlib/stdlib.js:
Stdlib.writeXMLFile = function(fptr, xml) {
  var rc;
  if (!(xml instanceof XML)) {
    Error.runtimeError(19, "xml"); // "Bad XML parameter";
  var file = Stdlib.convertFptr(fptr);
  file.encoding = "UTF8";
  rc = file.open("w", "TEXT", "????");
  if (!rc && Stdlib.IOEXCEPTIONS_ENABLED) {
    Error.runtimeError(Stdlib.IO_ERROR_CODE, Stdlib.fileError(file));
  // unicode signature, this is UTF16 but will convert to UTF8 "EF BB BF"
  // optional
  //file.write("\uFEFF");
  file.lineFeed = "unix";
  file.writeln('<?xml version="1.0" encoding="utf-8"?>');
  rc = file.write(xml.toXMLString());
  if (!rc && Stdlib.IOEXCEPTIONS_ENABLED) {
    Error.runtimeError(Stdlib.IO_ERROR_CODE, Stdlib.fileError(file));
  rc = file.close();
  if (!rc && Stdlib.IOEXCEPTIONS_ENABLED) {
    Error.runtimeError(Stdlib.IO_ERROR_CODE, Stdlib.fileError(file));
  return file;
The error handling code is in there because it's easier to track down IO problems when they occur.