tag:blogger.com,1999:blog-102852602012-01-19T02:50:13.168-08:00Rich Ungerhttp://www.blogger.com/profile/03541340548025935502noreply@blogger.comBlogger81100tag:blogger.com,1999:blog-10285260.post-8914482421644845832010-03-16T09:45:00.000-07:002010-03-16T09:54:42.400-07:00

Some folks have noticed an issue when using the new Custom Settings feature in Apex. When you have a piece of code that does DML on both a custom setting and a regular object, you get: "MIXED_DML_OPERATION, DML operation on setup object is not permitted after you have updated a non-setup object (or vice versa)" What is Mixed DML? Well, certain types of DML simply do not mix well. For instance

Rich Ungerhttp://www.blogger.com/profile/03541340548025935502noreply@blogger.com0tag:blogger.com,1999:blog-10285260.post-73555089695484176832010-03-11T09:43:00.001-08:002010-03-11T10:18:44.620-08:00

I'm resurrecting this blog for posts related to Apex, as using my java.net blog for that purpose would be inappropriate. I'm not sure how often I'll post. When things of general interest crop up while I'm working on the Apex compiler, I suppose. Today's topic came up as part of a customer support escalation. It's a tricky gotcha with the Apex getMap() function, used for getting all the fields

Rich Ungerhttp://www.blogger.com/profile/03541340548025935502noreply@blogger.com0tag:blogger.com,1999:blog-10285260.post-1111605625140344472005-03-23T11:19:00.000-08:002005-03-23T11:20:25.140-08:00

I'm moving this java show over to my new blog on java.net.

Rich Ungerhttp://www.blogger.com/profile/03541340548025935502noreply@blogger.com0tag:blogger.com,1999:blog-10285260.post-1109275849156158542005-02-24T11:28:00.000-08:002005-02-24T12:12:42.883-08:00

There are a bunch of sun developers in town for an internal training seminar on netbeans. I'm the only non-Sun employee speaking at this seminar. I'm giving a little talk on the cluster build harness and my Feedreader tutorial (which won the ipod, BTW). Anyway, last night a bunch of us got together at a pub in Burlingame. I got to meet Sanjeev of the safari netbeans project, a bunch of folks

Rich Ungerhttp://www.blogger.com/profile/03541340548025935502noreply@blogger.com0tag:blogger.com,1999:blog-10285260.post-1106776205741453272005-01-26T13:40:00.000-08:002005-02-24T12:13:08.820-08:00

So, I just made my first multiview component. It was easier than I expected, and the source code in the minicomposer example was particularly helpful. In fact, too helpful. Or, rather, it was so precisely what I needed, that I wonder why it was necessary for me to copy so much source code verbatim, rather than just invoking some higher level API. If you have a file type that can be edited in

Rich Ungerhttp://www.blogger.com/profile/03541340548025935502noreply@blogger.com2tag:blogger.com,1999:blog-10285260.post-1106265091133582732005-01-20T15:49:00.000-08:002005-01-20T15:51:31.133-08:00

That last post was a pain, to get the whitespace to work. Anyone know of a better way to get spaces or tabs at the beginning of lines, besides inserting a bunch of   tokens?

Rich Ungerhttp://www.blogger.com/profile/03541340548025935502noreply@blogger.com5tag:blogger.com,1999:blog-10285260.post-1106264534675917922005-01-20T15:20:00.000-08:002005-02-24T12:15:24.380-08:00

I've been struggling with TopComponentGroup semantics. Basically, I have a TopComponent class A, and a singleton TopComponent B that displays property sheets relating to A. So, in my window system delcarations, I make a group containing the singleton B. The trick is, when do I call open() and close() on the TopComponentGroup? The conventional wisdom is to have: protected void

Rich Ungerhttp://www.blogger.com/profile/03541340548025935502noreply@blogger.com0tag:blogger.com,1999:blog-10285260.post-1106251884678950662005-01-20T13:02:00.000-08:002005-01-20T12:11:24.676-08:00

I've finished my entry for the netbeans tutorial contest. Of course, they then extended the deadline. However, they've allowed me to post it anyway, so folks get get use out of it right away. Check it out at http://www.cs.wustl.edu/~rbu1/feedreader/. My office-mate has already (correctly) pointed out that there's no reason for SiteListComponent to subclass CloneableTopComponent, as it's a

Rich Ungerhttp://www.blogger.com/profile/03541340548025935502noreply@blogger.com1