[Xapian-tickets] [Xapian] #341: Python bindings should keep a reference to user-subclassable proxies when registered with consumers/users

[Xapian]

#341: Python bindings should keep a reference to user-subclassable proxies when
registered with consumers/users
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 Reporter:  james            |        Owner:  richard  
     Type:  defect           |       Status:  assigned 
 Priority:  normal           |    Milestone:  1.1.1    
Component:  Xapian-bindings  |      Version:  SVN trunk
 Severity:  normal           |   Resolution:           
 Keywords:                   |    Blockedby:           
 Platform:  All              |     Blocking:           
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Comment(by richard):

 I can't think of any other places in the API where it would be useful to
 do this, other than for PostingSources being passed into queries.  that's
 a much more complex job to fix, though doable, because queries can be
 combined with each other - you need to modify all the query constructors
 to also copy the property across from all the children, and I'm not sure
 you can do this without making a big Query proxy class - this would be
 quite invasive, and inappropriate to commit at the present time.

 It's not such an issue for PostingSources anyway, because all the built-in
 ones support clone.  It's not possible to implement clone() for ones
 implemented in python, though, so it's still worth fixing if we can.

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Ticket URL: <http://trac.xapian.org/ticket/341#comment:6>
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