Return-Path: Delivered-To: apmail-incubator-uima-user-archive@minotaur.apache.org Received: (qmail 33354 invoked from network); 28 Jun 2009 18:43:52 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 28 Jun 2009 18:43:52 -0000 Received: (qmail 57420 invoked by uid 500); 28 Jun 2009 18:44:02 -0000 Delivered-To: apmail-incubator-uima-user-archive@incubator.apache.org Received: (qmail 57373 invoked by uid 500); 28 Jun 2009 18:44:02 -0000 Mailing-List: contact uima-user-help@incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: uima-user@incubator.apache.org Delivered-To: mailing list uima-user@incubator.apache.org Received: (qmail 57363 invoked by uid 99); 28 Jun 2009 18:44:01 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 28 Jun 2009 18:44:01 +0000 X-ASF-Spam-Status: No, hits=-1.0 required=10.0 tests=RCVD_IN_DNSWL_LOW,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of gcaug-uima-user@m.gmane.org designates 80.91.229.2 as permitted sender) Received: from [80.91.229.2] (HELO ciao.gmane.org) (80.91.229.2) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 28 Jun 2009 18:43:51 +0000 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1MKzLd-00038B-05 for uima-user@incubator.apache.org; Sun, 28 Jun 2009 18:43:29 +0000 Received: from p54a8bbd9.dip.t-dialin.net ([84.168.187.217]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 28 Jun 2009 18:43:28 +0000 Received: from schlamp by p54a8bbd9.dip.t-dialin.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 28 Jun 2009 18:43:28 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: uima-user@incubator.apache.org From: Kai Schlamp Subject: ISourceProvider variable that can be null Date: Sun, 28 Jun 2009 20:43:38 +0200 Lines: 10 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: p54a8bbd9.dip.t-dialin.net User-Agent: Thunderbird 2.0.0.21 (X11/20090409) Sender: news X-Virus-Checked: Checked by ClamAV on apache.org Hi. I want to provide my own variable by using ISourceProvider. The problem is that this variable can also be null. It seems that this is not supported (I get an exception then, telling me that this variable is not defined). Is there a reason why null variables are not supported? Ok, I can simply wrap it in a list, but wonder why I have to. Regards, Kai