Dennis Sosnoski dms at sosnoski.com writes:
Hi Sandeep,
Is the exception occurring during marshalling or unmarshalling? Also, I
don't understand how you can get a ClassCastException with no further
stack trace information - can you show exactly what you're getting? Thanks,
- Dennis
Sandeep Khanna wrote:
Hi All,
Jibx binding compiler compiles fine with the following binding class
declaration:
mapping name=AsClient class=com.adminserver.dcl.ClientDcl
ordered=false
collection field=roles type=java.util.HashSet
item-type=com.adminserver.dcl.RoleDcl name=PolicyRoles
usage=optional/
/mapping
mapping name=AsRole class=com.adminserver.dcl.RoleDcl
ordered=false
value get-method=getRoleGuid set-method=setRoleGuid
name=RoleGUID style=element
usage=optional/
/mapping
public class ClientDcl {
...
private java.util.Set roles;
...
}
I am getting a java.lang.ClassCastException without any more stack trace
information from Jibx.
Would I need to use the 'factory' attribute instead of the 'type'
attribute? Something on the lines of
org.jibx.runtime.Utility.arrayListFactory?
Any idea what's going on here?
--Sandeep Khanna
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Hi Dennis,
I know this topic has been idle for a while, but I am seeing the same thing when
I marshal a hibernate object. My FlockTest object marshalled just fine the first
time, without any collection bindings. Then I added the collection and got a
ClassCastException with no detailMessage, stackTrace, or any other information.
My binding has this:
binding forwards=false value-style=attribute
mapping class=FlockTest name=flock-test
value style=element
name=flock-test-id
field=flockTestId
usage=optional/
[]
collection field=flockTestDetails
item-type=FlockTestDetail
type=java.util.HashSet
usage=optional/
/mapping
mapping class=FlockTestDetail name=flock-test-detail
[...]
/mapping
/binding
My FlockTest class looks like this:
public class FlockTest implements java.io.Serializable {
[...]
private Set flockTestDetails = new HashSet(0);
public Set getFlockTestDetails() {
return this.flockTestDetails;
}
public void setFlockTestDetails(Set flockTestDetails) {
this.flockTestDetails = flockTestDetails;
}
}
The marshalling code looks like this:
public void saveFlockTest(FlockTest ft) throws DataAccessException
{
try{
IBindingFactory bfact =
BindingDirectory.getFactory(FlockTest.class);
IMarshallingContext mctx = bfact.createMarshallingContext();
mctx.setIndent(4);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
mctx.marshalDocument(ft, UTF-8, null, baos);
log.debug(baos.toString());
}catch(JiBXException je){
;
}catch(Exception e){
log.debug(e.getStackTrace());
}
}
I even rebuilt the latest code (1.0 RC1?) with debug symbols and stepped through
the marshalling code. It all works until it gets to the JiBX-generated FlockTest
marshal code, which I cannot step through. In the marshal() call, it steps into
MarshallingContext.getMarshaller(). That seems to return a marshaller correctly
because the debugger opens the FlockTest source file and indicates that it's
calling FlockTest.marshal(IMarshallingContext), as expected. I step/execute
three times (helpful?) in the marshal call and then get a CCE.
I'm just getting into JiBX and very happy that my first test succeeded, but that
was a simple test. My objects may have many levels of children and
grandchildren, all implemented as java.util.Set.
Any pointers would be helpful. Thanks!
-
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