[Zope-dev] ZCatalog caching with memcached

[Andreas Jung]

On 25.10.2008 14:53 Uhr, Hedley Roos wrote:
>> I'd love if this wouldn't be a monkey patch.
>
> So would I, but I couldn't find another way in this case.
>
>> Also, there is nothing that makes this integrate correctly with
>> transactions. Your cache will happily deliver never-committed data and
>> also it will not isolate transactions from each other.
>>
> I patched 4 methods - clear, search, catalogObject, uncatalogObject.
>
> Method clear is the simplest one - I simply flush the cache.
>
> Methods catalogObject and uncatalogObject both invalidate the cache.
> Should the transaction fail later the only drawback is that you threw
> a few things out of the cache. They'll soon be re-entered by
> subsequent searches.

Using a DataManager is likely the better and more safe choice.

Andreas
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