> -----Original Message----- > From: Kimbro Staken [mailto:[EMAIL PROTECTED] > Sent: Tuesday, April 24, 2001 11:03 AM > To: [EMAIL PROTECTED] > Subject: Re: Implementation feedback > > > Lars Martin wrote: > > > > On Mon, 23 Apr 2001 17:52:05 -0700 > > Kimbro Staken <[EMAIL PROTECTED]> wrote: > > > Why the Collection interface needs setter/getter for > ResourceType? Does > > a Collection can not contain different Resources, e.g. DOM > and Binary? > > Did I overlooked something here? > > It can but this is mainly used to switch what representation you want > for XML. e.g. SAX, DOM, Text. This is definitely the one > thing about the > API that I'm not really happy with. > > The use case looks like. > > Collection collection = DatabaseManager.getCollection("some db uri"); > > // tell the API you want a DOMNodeResource when you call getResource() > collection.setResourceType("DOMNode"); > > String id = "gladiator-2000"; > DOMNodeResource resource = (DOMNodeResource) > collection.getResource(id); > Document doc = (Document) resource.getContent(); > > > BTW, do we really need to be able to support mixed binary/XML > within the > same collection? > > > > > > The Resource interface should have a getResourceType > method so that you > > > can know what kind of resource it encapsulates. > > > > sounds reasonable > > > > > In Collection there should probably be a > getChildCollection method to > > > retrieve a collection relative to the current collection. > > > > > > In Collection there is currently a getChildCollections method that > > > returns a list of Collection instances. This would > probably be better as > > > a listChildCollections method that returns a list of > child collection > > > names instead of actual collection instances. You could then use > > > getChildCollection to retrieve the Collection instances as needed. > > > > > Any opinion on this change? > > > > In Collection there should probably be a way to test for > the existance > > > of a Resource prior to retrieving/changing/deleting it. > > > > > > In Collection there should probably be a way to test for > the existence > > > of a particular service. > > > > Well I see the advantages of dedicated "exists" methods but > I'm not sure > > whether they're really necessary?! > > > > 1. proceeding you request: > > > > if (collection.serviceExists("XPathQueryService", "1.0")) { > > Service service = > collection.getService("XPathQueryService", > > "1.0"); > > service.setCollection(collection); > > .... > > } > > > > or 2. current proceeding: > > > > Service service = null; > > if ((service = > collection.getService("XPathQueryService", "1.0")) > > != null) { > > service.setCollection(collection); > > .... > > } > > > > Same for Resources.... > > > > Done deal. null returns on getService and getResource if not found. > > > > > I think that's it for now. > > > > > > -- > > > Kimbro Staken > > > Chief Technology Officer > > > dbXML Group L.L.C > > > http://www.dbxmlgroup.com > > > > > > > ---------------------------------------------------------------------- > > > Post a message: mailto:[EMAIL PROTECTED] > > > Unsubscribe: > mailto:[EMAIL PROTECTED] > > > Contact adminstrator: mailto:[EMAIL PROTECTED] > > > Read archived messages: http://archive.xmldb.org/ > > > > ---------------------------------------------------------------------- > > > > -- > > > ______________________________________________________________________ > > 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/ > ----------------------------------------------------------------------
-- Kimbro Staken Chief Technology Officer dbXML Group L.L.C http://www.dbxmlgroup.com ---------------------------------------------------------------------- Post a message: mailto:[EMAIL PROTECTED] Unsubscribe: mailto:[EMAIL PROTECTED] Contact adminstrator: mailto:[EMAIL PROTECTED] Read archived messages: http://archive.xmldb.org/ ---------------------------------------------------------------------- ---------------------------------------------------------------------- Post a message: mailto:[EMAIL PROTECTED] Unsubscribe: mailto:[EMAIL PROTECTED] Contact adminstrator: mailto:[EMAIL PROTECTED] Read archived messages: http://archive.xmldb.org/ ----------------------------------------------------------------------
