[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 yo

[appengine-java] Re: Querying by Category class

2010-01-04 Thread datanucleus
> I have tried the simplest approach and it works: > query.setFilter("tags == '" + aTagValue + "' "); It may work, but is actually invalid JDOQL and you should always use valid JDOQL syntax like tags.contains(tagParam) and your current query would fail in future releases. -- You received this me

[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 wrote: > 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.d