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TransformSnapshotImpl - anyone using it?

TransformSnapshotImpl - anyone using it?

2003-03-24       - By Brian Minchau

I'm working on merging the serializers of Xalan-J interpretive and XSLTC,
and I can't find how TransformSnapshotImpl in the
org.apache.xalan.transformer package would be used.

Is anyone using it?  Does anyone know what its purpose is?

It seems to be saving and restoring the state of the transformation
(including the serializer).  But the save/restore doesn't seem to be
complete so I'm wondering if it is being used.  For example these fields of
the ResultTreeHandler are saved and restored:
     m_eventCount
     m_nsSupport
     m_nsContextPushed
The m_eventCount field is saved and restored and it comes from QueuedEvents
class that ResultTreeHandler inherits from, but there are plenty of other
fields in QueuedEvents that are not saved and restored, such as:
     m_name
     m_url
     m_elemIsPending
     ...

Any help in understanding what this class is supposed to save and restore,
or why it exists would be appreciated.

Brian Minchau
XSLT Development, IBM Toronto
e-mail:        minchau@(protected)