AFAIK, If you front Cocoon with Apache (ProxyCache enabled) or if any other proxy server is between your browser and Cocoon, then the expires attribute is of significant help. Only I don't remember the syntax when used in the pipeline. Can someone point us to a document?
However if the browser is hitting Cocoon directly, then Vadim is right. It would make sence to allow a cache timeout parameter to be allowed in the pipeline for the dirGenerator. ----- Original Message ----- From: "Vadim Gritsenko" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, September 06, 2002 8:01 AM Subject: Re: Expiration Attribute in Pipeline & Efficient aggregation Ivelin Ivanov wrote: >Cocoon 2.1 supports an extra attribute in the pipeline, >which specifies the expiration header in the http response. > It serves different purpose; other client won't get cached result, and refresh also won't get cached result. Martin, you still need to exted generator to make it cacheable, with delta timestamp (simplest approach) or any other way. Vadim >This should allow temporary caching of the result. >I am not sure where this is documented though. > > >----- Original Message ----- >From: "Martin Lüthi" <[EMAIL PROTECTED]> >To: <[EMAIL PROTECTED]> >Sent: Thursday, September 05, 2002 8:47 AM >Subject: Re: Efficient aggregation > > >Thank you for your hint. I just tried out XPathDirectoryGenerator >(scratchpad) >which essentially does what I need, but is a lot less messy than my initial >approach. However, also these results seem not to get cached... Presumably I >should save the result with something like a SourceWritingTransformer, and >only rebuild the file after explizit request. > > >Martin > >Nick Airey <[EMAIL PROTECTED]> writes: > > > >>After 1 minute of looking, it seems that the DirectoryGenerator is not >>cacheable. >> >>So it is going to re-read the directory every time you hit the pipeline. >>Your Xincluded pieces might be cacheable, however. For instance, the >>FileGenerator *is* cacheable (if you are using it). >> >> >>If you can live with refreshing the cached directory every x seconds (or >>miliseconds), and you can write some java, you could extend the >>DirectoryGenerator to make a "caching directory generator", by >>implementing interface Cacheable and implementing generateKey() and >>generateValidity(). The generateValidity() method would return a >>DeltaTimeCacheValidity instance set to the caching time. >> >> >>Regs, >>Nick. >> >> > >-- >Martin Lüthi [EMAIL PROTECTED] > > > --------------------------------------------------------------------- Please check that your question has not already been answered in the FAQ before posting. <http://xml.apache.org/cocoon/faq/index.html> To unsubscribe, e-mail: <[EMAIL PROTECTED]> For additional commands, e-mail: <[EMAIL PROTECTED]> --------------------------------------------------------------------- Please check that your question has not already been answered in the FAQ before posting. <http://xml.apache.org/cocoon/faq/index.html> To unsubscribe, e-mail: <[EMAIL PROTECTED]> For additional commands, e-mail: <[EMAIL PROTECTED]>
