%XML.SAX.Utils.NullStreamstream class %XML.SAX.Utils.NullStream
This class is represents a null stream, ie. reading from it always returns nothing writing to it always discards the data. Used by the default implementation of Entity resolver when uri scheme is unrecognized
Copy the stream from source into the current stream ignoring anything already in the current stream and save the result to the permanent location. This is used to optimise the copying of say a
%GlobalCharacterStreamto another %GlobalCharacterStreamto avoid copying into temporary storage first and then moving this to the permanent storage when SaveStreamis called.
Note that any locking or transaction handling must be done by the caller.