webdav.EtagSupport.EtagSupport

Package webdav :: Module EtagSupport :: Class EtagSupport

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Class EtagSupport

Known Subclasses:: LockableItem

This class is the basis for supporting Etags in Zope. It's main function right now is to support the *Lost Updates Problem* by allowing Etags and If-Match headers to be checked on PUT calls to provide a *Seatbelt* style functionality. The Etags is based on the bobobase_modification_time, and thus is updated whenever the object is updated. If a PUT request, or other HTTP or Dav request comes in with an Etag different than the current one, that request can be rejected according to the type of header (If-Match, If-None-Match).

Method Summary
	`http__etag(self, readonly)`
	`http__parseMatchList(self, REQUEST, header)`
	`http__processMatchHeaders(self, REQUEST)`
	`http__refreshEtag(self)`

Class Variable Summary
`Implements`	`__implemented__` = `<implementedBy webdav.EtagSupport.Etag...`
`tuple`	`__implements__` = `(<Interface webdav.EtagSupport.EtagBase...`
`ClassProvides`	`__providedBy__` = `<zope.interface.declarations.ClassProvi...`
`ClassProvides`	`__provides__` = `<zope.interface.declarations.ClassProvide...`

Class Variable Details

implemented

Type:: Implements
Value:: <implementedBy webdav.EtagSupport.EtagSupport>

implements

Type:: tuple
Value:: (<Interface webdav.EtagSupport.EtagBaseInterface at 1484890>,)

providedBy

Type:: ClassProvides
Value:: <zope.interface.declarations.ClassProvides object at 0x1569630>

provides

Type:: ClassProvides
Value:: <zope.interface.declarations.ClassProvides object at 0x1569630>

Generated by Epydoc 2.1 on Thu Aug 16 09:55:15 2007

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Class EtagSupport

__implemented__

__implements__

__providedBy__

__provides__

implemented

implements

providedBy

provides