[Xapian-tickets] [Xapian] #504: Add is_closed() to Database class

[Xapian]

#504: Add is_closed() to Database class
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 Reporter:  jcassee      |       Owner:  olly
     Type:  enhancement  |      Status:  new 
 Priority:  normal       |   Milestone:      
Component:  Library API  |     Version:      
 Severity:  minor        |    Keywords:      
Blockedby:               |    Platform:  All 
 Blocking:               |  
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Comment(by richard):

 In all the usage patterns I've used to access Xapian databases, keeping
 track of "is_closed()" for a database is easy to do outside Xapian (or is
 irrelevant, because the reference to the database object is dropped
 immediately after calling close()), so I'm also unsure that there is much
 justification for adding an is_closed() method.

 However, one situation where it could be useful is for checking if an
 exception has caused the database to become closed.  IIRC, Some exceptions
 (eg, ones which are reporting database corruption) will close the
 database, but others (eg, "document not found" exceptions) will not.
 Users might reasonably want to implement a generic error handler which
 checks if the database is now closed, and takes some appropriate action if
 so.

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Ticket URL: <http://trac.xapian.org/ticket/504#comment:2>
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