Description:
------------
If the name of the super-type is alphabetically (sorted)  AFTER the type name of the derived (extension, restriction) type in the schema, assigning a value to a property of that type fails. 

The schema defines a upl-object which has a creationType property. The creationType-property is of the type lovCreationTypeType which is a restriction of lovType which is a restriction of xs:int. In my (original) example, the type name is lovCreationTypeType which is alphabetically sorted BEFORE lovType where it is derived from. 

Example code and schemas are available here:
http://ftxml-dev.itpnet.ch/test/test.zip
http://ftxml-dev.itpnet.ch/test/sdo_test.php
http://ftxml-dev.itpnet.ch/test/sdo_test.xsd
http://ftxml-dev.itpnet.ch/test/sdo_working.xsd

In PHP-Code, the property can not be set using 
$upl->creationType = 1234 after having created the upl-object. 

After renaming the type lovCreationTypeType to be lovZZCreationType, assigning a value works. Reproduction is possible on WinXP SP2, Apache 2.2.6, PHP 5.2.5 and Linux Fedora Core 6, Apache 2.2.6, PHP 5.2.5

Reproduce code:
---------------
<?php
$xmldas = SDO_DAS_XML::create();
$xmldas->addTypes('sdo_working.xsd');

$document = $xmldas->createDocument('http://example.com/model', 'upl');
$upl = $document->getRootDataObject();
$upl->creationType = 1234;

header('Content-Type: text/xml');
echo $xmldas->saveString($document);
unset($upl);

$xmldas = SDO_DAS_XML::create();
$xmldas->addTypes('sdo_test.xsd');

$document = $xmldas->createDocument('http://example.com/model', 'upl');
$upl = $document->getRootDataObject();
$upl->creationType = 1234;
unset($upl);
?>

Expected result:
----------------
The code above can be used to reproduce the bug using 2 different schemas (sdo_working.xsd, sdo_test.xsd) The first test uses sdo_working.xsd which defines the type lovZZCreationTypeType (derived from lovType) to assign a value to $upl->creationType. The resulting XML is printed out. 

The second test uses sdo_test.xsd where the definition of the creationType element is of the type lovCreationTypeType. Teh result is a SDO_UnsupportedOperationException which is catched.

The script may be run in a browser, the result (Source code) is shown below.

Actual result:
--------------
<?xml version="1.0" encoding="UTF-8"?>
<tns:upl xmlns:tns="http://example.com/model" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><tns:creationType>1234</tns:creationType></tns:upl>
<br />
<b>Fatal error</b>:  Uncaught exception 'SDO_UnsupportedOperationException' with message 'main(): cannot cast integer to SDO_DataObject for 'creationType'' in D:\workspaces\ftxml\test\sdo_test.php:21
Stack trace:
#0 D:\workspaces\ftxml\test\sdo_test.php(21): unknown()
#1 {main}
  thrown in <b>D:\workspaces\ftxml\test\sdo_test.php</b> on line <b>21</b><br />