There isn't a large difference between using Category objects versus simple Strings. There is a semantic distinction -- a String doesn't necessarily have to represent a tag -- and Category objects may make it easier to add a restriction on accepted tag values when arbitrary tags aren't supported, but this can also be accomplished using Strings, so it's the semantic distinction more than anything.
- Jason On Tue, Oct 20, 2009 at 8:09 PM, Max Zhu <thebb...@gmail.com> wrote: > Hi Rusty, > > Thanks for your reply. I know that is a tag, but what I am looking for is > how to implement using GAE. > > Hi Jason, > > I can not make my question more specific because I totally have no idea on > it. :) > > Can I say we just simply put a Set<Category> to an Entity? Then how can I > make use of it when making a global search? Shall we iterate through every > Set<Category>? If that's the case, then what's the difference between > Set<Category> and Set<String> ? > > Regards, > Max > > > On Wed, Oct 21, 2009 at 1:23 AM, Jason (Google) <apija...@google.com>wrote: > >> Hi Max. This is currently the only reference available: >> >> >> http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/datastore/Category.html >> >> Do you have any specific questions around it? >> >> - Jason >> >> >> On Sat, Oct 17, 2009 at 10:02 AM, Max <thebb...@gmail.com> wrote: >> >>> >>> I am not able to find a good reference on: >>> com.google.appengine.api.datastore.Category >>> >>> Thanks >>> Max >>> >>> >> >> >> > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en -~----------~----~----~----~------~----~------~--~---
