[Zope-dev] Re: serving BLOBs

[Tres Seaver]

Johan Carlsson wrote:
> What exactly is the filestream_iterator that the FileCacheManager uses?
> 
> As I understand it this is a new feature?

For Zope >= 2.7.2, ZPublisher defines an interface, 
ZPublisher.Iterators.IStreamIterator.  An application can return an 
object implementing this interface to the publisher, instead of a 
string;  if so, the publisher hands it directly to medusa, and frees up 
the application thread / database connection.  medusa will use the 
iterator to send the response back to the user, without first converting 
it to a single big string.

Tres.
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Tres Seaver                                tseaver at zope.com
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