> I'm trying to find the best solution to progressing a very large XML file.
> This XML file is filled with independent elements which i want to
unmarshall
> one at a time because of memory constraints (the file is about 60GB).
> <BIND-Interaction-Set>
> <BIND-Interaction>
> ...
> </BIND-Interaction>
> ....
> ....
> </BIND-Interaction-Set>
In your schema, specify both BIND-Interaction-Set and BIND-Interaction as
top-level-elements. The generated classes will be able to unmarshal
BIND-Interaction elements.
Next, create a filtering SAX handler, which instantiates an
UmarshallerHandler upon any startElement for BIND-Interaction. All SAX
events (including a startDocument() and the original startElement() must be
delegated to the UnmarshallerHandler, as long as an endElement for
BIND-Interaction appears. An additional DOM tree is not required and in fact
a serious performance leak.
Jochen