Hi, On Fri, Apr 28, 2006 at 02:29:51PM +0200, Achim Domma wrote: > Hi, > > I want to integrate support for a specialized text indexing engine into Zope > 3. The engine is able > to provide documents which are "similar" to a reference document.
I'm curious: How are you going to do this (comparing documents, determining similiarity)? > First I had a look at ICatalog, but IInjection seems to be the way to go. > Could somebody give me a > high level overview on how to use / implement these interfaces? > > I currently think about the following steps: > > - Implement the index as local utility. > - Define an interface IMyStorageDocument for documents to be stored in my > index. > - Capture somehow if objects are created or deleted. Check if the object can > be adapted to > IMyStorageDocument. If yes, store it in the index or remove it. You should have a look at zope.app.catalog.interfaces.IAttributeIndex which seems to be what you want. Write your own implementation of an index implementing IAttributeIndex. Your index will later be created as a child of an ICatalog object which will take care of created, modified or deleted content objects on your server and tell all its indices (-subobjects) about those changes. > Clients then only have to implement an adapter for documents which should > be indexed. To search for documents one could access the index as local > utility. This is basically what I did: I wrote an interface providing 3 methods that are used by my index: getTitle(), getContent(), getAbstract(). hth Regards, Frank _______________________________________________ Zope3-users mailing list Zope3email@example.com http://mail.zope.org/mailman/listinfo/zope3-users