> From: Per Kreipke [mailto:[EMAIL PROTECTED]] > > OVERVIEW: > ========= > Cocoon uses Configurations from Avalon to abstract keeping common config > information in XML form and easily using and caching it in memory. However, > it doesn't quite serve my purposes (I think) because it actually converts > the XML into its internal format and doesn't allow XPath queries against it. > > I'm beginning to suspect that there is no such object in C2 but rather > caching is a component service provided by another component. However, I > wish there already was some example of, say, a URLSource that was being > cached in a simple way that I could retrieve it on demand. > > Specifically, each request will cause an XPath query against the XML and > portions of those results will be propagated to the sitemap. E.g. this will > all be handled by an Action. > > REQUIREMENTS: > ============= > I have some information in an XML file which is common to the entire web app > (file is not tiny). > > For speed, I was thinking of storing it in a servlet context attribute so > that it was accessible everywhere. > > I want to be able to execute XPath queries against it. > > Some of the attributes in the file need to be propa > > The XML file may be changed and should be reloaded. > > Among other things, I will want to stream the XPath results into the SAX > stream (much like ReadDOMTransformer). > > > SOLUTIONS: > ========== > 1. Use Configurations. > - can be cached, etc. > - doesn't allow XPath queries > > 2. Use URLSource and add caching (note to self: check if it already is). > - how to add caching to an action (note to self: look at all the actions, > again) > > 3. ??
Use Parser.ROLE to parse it into the DOM tree and save it into the context. Use XPathProcessor.ROLE to query it. Vadim > > Thanks in advance for any pointers, feedback. > > Per Kreipke --------------------------------------------------------------------- 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]>
