[appengine-java] Re: Local datastore is empty after migrating to 1.3.1

2010-02-24 Thread Itzik Yatom
Same problem On Feb 23, 10:21 pm, Scott Hernandez scotthernan...@gmail.com wrote: I got a read error when I tried running with my existing (v1.3.0) data-store file; I created a new one (by renaming the old one) and restarting. I suspect the internal format is different and the old format

[appengine-java] Re: Querying by Category class

2010-01-05 Thread Itzik Yatom
I have changed to query.setFilter(tags.contains(' + aTagValue + ')); and it still works! It took me a while to get into this concept, that although it's a filter clause it's written in java object style and not SQL style, I mean: NOT tags contains tagParam BUT tags.contains(tagParam) as you

[appengine-java] Re: Querying by Category class

2010-01-04 Thread Itzik Yatom
I have tried the simplest approach and it works: query.setFilter(tags == ' + aTagValue + ' ); On Jan 3, 5:05 pm, Itzik Yatom itzik...@hotmail.com wrote: I consider to use the built in Category class for implementing tags for one of my datastore classes. Something like: . import

[appengine-java] Querying by Category class

2010-01-03 Thread Itzik Yatom
I consider to use the built in Category class for implementing tags for one of my datastore classes. Something like: . import com.google.appengine.api.datastore.Category; . @Persistent protected ListCategory tags; . My question is how do I filter objects by a tag value, for example I want to get

[appengine-java] Gradual move from XAMPP to app engine

2009-10-19 Thread Itzik Yatom
Hi all I have been developing web sites using GWT at the client and Apache web server with PHP and My SQL DB. The server side is responsible for data access, mail and some other server jobs These days I am considering using Google App engine as my server. I don't want to through all the code I