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Hi all <br>
<br>
I have questions about SmartRefStream which I can't get to work... It's
actually to restore a smallwiki2 kernel on a newer version.
ReferenceStream is working properly but as the model as changed (2 new
instance variblables and a renamed one), I have to fix manually... <br>
(the difference between the 2 models are :<br>
tags in SW2Structure<br>
embedded in SW2Link<br>
and anchor in SW2InternalLink)<br>
<br>
So I'd like to use SmartRefStream mainly to learn how to store and read
object back...<br>
<br>
|stream|<br>
<br>
"save"<br>
|stream|<br>
stream := SmartRefStream fileNamed: 'MyKernel.obj'.<br>
stream nextPut: (SW2Kernel instances first root). <- a root
wikiPage which is a tree...<br>
stream close."<br>
<br>
-> creates a file (570ko) which I just can't read back... ??<br>
<br>
<i>I used</i><br>
stream := SmartRefStream fileNamed: 'MyKernel.obj'. <br>
<i>then...</i><br>
stream readInstance<br>
<i>or </i><br>
stream next<br>
<i>or</i><br>
...<br>
stream close <br>
<br>
->Error: attempt to index non-existent element...<br>
<br>
<br>
I did not add the convert method as said in the comment <br>
convertToCurrentVersion: varDict refStream: smartRefStrm<br>
Is it necessary ? as I d'ont really care if the new instance variables
are set to nil.<br>
Does someone see why I cant read it back ?<br>
<br>
<br>
Thanks<br>
Cédrick<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
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