On Mon, 30 Apr 2001 21:14:42 +0200 Lars Martin <[EMAIL PROTECTED]> wrote:
> > Hmm, I don't fully understand this. :-/ I see the lot of work to be > done to map from hierarchical structure to flat relational tables and > back. Ok, so far. But where is the difference (not functionally but > basically) between getCollection() and createCollection()? You have > to generate the "same" mapping algorithm. You just write CREATE TABLE > instead of SELECT FROM in your mapping code. Ok, this is written a > little bit too credulously but only because I don't see the difference > you want to point out ... ... and there is a method createResource() part of the current API. So, if you're a mapping tool vendor you have to create a mapping algorith as well... > On Mon, 30 Apr 2001 10:43:11 -0700 > Tom Bradford <[EMAIL PROTECTED]> wrote: > > Lars Martin wrote: > > > well,as far as I can remember we already noticed the lack of methods > > > for the create of new root collections as well as child collections. > > > To move forward I propose the addition of the following two methods: > > > > While every attempt should be made to create a standard way of producing > > collections, I don't know if any one approach can be considered correct > > for all cases. > > > > For example, an XML:DB driver may be hitting a relational database as > > its data store, and a Collection may be exposed as the result of > > relational mapping between several RDBMS tables. In this case, there is > > no clean way of creating a Collection as there's a lot of mapping and > > other homework that has to be done ahead of time. > > > > One way to approach the problem would be to break the problem down into > > classes, and say that for native and enabled XML databases, there IS a > > clean way to do it, but for mapped databases there isn't, and thus it > > would be up to the vendor of the mapped database driver to figure out > > Collection creation. The problem with that is that it leads to > > inconsistency between the clean way and the various ways mapping vendors > > are implementing it. > > > > Of course, the same applies to dropping Collections. -- ______________________________________________________________________ Lars Martin mailto:[EMAIL PROTECTED] SMB GmbH http://www.smb-tec.com ---------------------------------------------------------------------- Post a message: mailto:[EMAIL PROTECTED] Unsubscribe: mailto:[EMAIL PROTECTED] Contact adminstrator: mailto:[EMAIL PROTECTED] Read archived messages: http://archive.xmldb.org/ ----------------------------------------------------------------------
