I have a two classes:
Employee (contains position and tasks) that extends Person (contains name,
id and a timestamp).
Using the following OQL:
SELECT e.name FROM castordemo.bdo.Employee e WHERE name LIKE $1
failed with an exception in OQLQueryImpl$OQLEnumeration.followPath() that
the path (e.name) was not found.
I think the problem is that followPath() only looks in the current class but
not in the base class.
The following path helped:
private Object followPath(Object parent) {
//System.out.println("Following the path.");
//follow the path
JDOClassDescriptor curClassDesc = _classDescriptor;
Object curObject = parent;
for ( int i = 1; i < _pathInfo.size(); i++ ) {
String curFieldName = (String) _pathInfo.elementAt(i);
try {
// MER: search also all base classes
> JDOFieldDescriptor curFieldDesc = null;
> while (curFieldDesc == null && curClassDesc != null) {
> curFieldDesc = curClassDesc.getField( curFieldName );
> curClassDesc =
(JDOClassDescriptor)curClassDesc.getExtends();
> }
FieldHandler handler = curFieldDesc.getHandler();
curObject = handler.getValue( curObject );
curClassDesc = (JDOClassDescriptor)
curFieldDesc.getClassDescriptor();
}
catch (Exception ex) {
throw new NoSuchElementException( "An exception was
thrown trying to access get methods to follow the path expression. " +
ex.toString() );
}
}
return curObject;
}
Does this fix look ok?
Stephan Merker
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