Heikki,
You seem to have a good understanding of the
issue. The problem here is that XmlBeans tries to load the
Java classes from the same classloader as the Schema types, so if you load the
Schema types without a classloader, then the Java types cannot be loaded, so you
get basically XmlObject with runtime type "D=topLevel".
Try
replacing
stl = XmlBeans.typeLoaderUnion (
new SchemaTypeLoader [ ] { XmlBeans.getBuiltinTypeSystem ( ), stl } )
;
with
stl =
XmlBeans.typeLoaderUnion( new SchemaTypeLoader [] {
TopLevelElementDocumentPostFix.type.getTypeSystem(),
XmlBeans.getContextTypeLoader()} )
;
Radu
From: Heikki Doeleman
[mailto:hdoeleman@xxxxxxxxxxx]
Sent: Wednesday, November 15, 2006
2:49 AM
To: user@xxxxxxxxxxxxxxxxxxx
Subject:
ClassCastException when parsing using SchemaTypeLoader
Hi
there,
I have 2 jars generated with scomp. In one of them, all the class
names are postfixed to avoid clashing with class names from the other one
(because their respective schemas have the same names for top level elements,
and no namespace).
Now, trying to parse in the usual way leads to a
ClassCastException, as is described in earlier threads in this newsgroup
:
TopLevelElementDocumentPostFix toplevel =
TopLevelElementDocumentPostFix .Factory.parse ( xml );
OK, so to
avoid this exception I tried using a SchemaTypeLoader telling it which jar to
use, as follows
:
File[ ]
schemaPath = { new File ( "the-path-to-the-jar/xmltypes-postfixed.jar" ) } ;
SchemaTypeLoader stl = XmlBeans.typeLoaderForResource (
XmlBeans.resourceLoaderForPath ( schemaPath ) )
;
stl =
XmlBeans.typeLoaderUnion ( new SchemaTypeLoader [ ] {
XmlBeans.getBuiltinTypeSystem ( ), stl } )
;
System.out.println ( TopLevelElementDocumentPostFix.type.toString ( ) )
;
TopLevelElementDocumentPostFix toplevel = ( TopLevelElementDocumentPostFix
)stl.parse ( xml , TopLevelElementDocumentPostFix.type , null ) ;
This
last line gives a ClassCastException.
The output from the System.out is the
string "D=topLevel" (i.e. the name of the top level element in my xml
document).
Does anyone see what I am doing wrong ?
thank
you very much,
Heikki Doeleman
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