quite similar to IRL, that bit, yes. We don't want to shove S-expressions down peoples throught.
If enough people are interested, I could write something up on the new DRL languages and features (just as a sneak preview). On 2/14/06, 宋宇彬 <[EMAIL PROTECTED]> wrote: > > > Just like jrules' TRL > > -----邮件原件----- > 发件人: Mark Proctor [mailto:[EMAIL PROTECTED] > 发送时间: 2006年2月14日 2:26 > 收件人: user@drools.codehaus.org > 主题: Re: [drools-user] Firing rules when something DOESN'T exist > > Yes that is also the case. > > Mark > Stuart Schmukler wrote: > > I hope we will have this work for all objects of a class also. For > example: > > > > not Person() > > which says, there is NO person. > > > > Stuart > > > > > > > > ---- On 13 Feb 2006 12:25:47, [EMAIL PROTECTED] > > ([EMAIL PROTECTED]) wrote: > > > > > > > >> From: Michael Neale <[EMAIL PROTECTED]> > >> To: user@drools.codehaus.org > >> MIME-Version: 1.0 > >> Subject: Re: [drools-user] Firing rules when something DOESN'T exist > >> > >> > >> > >> yeah thats a really powerful feature, and is definately going to be > >> part of Drools 3. > >> > >> It will work something like: > >> > >> not Person(name == "michael") > >> which says, there is NO person called michael. > >> > >> Of course, you can work around this now, either by baking some of the > >> logic into your model, or looking through working memory (which is > >> possibly slower). > >> > >> Regards, > >> > >> Michael. > >> > >> On 2/11/06, Mitch Christensen <[EMAIL PROTECTED]> wrote: > >> > >>> Hey, > >>> > >>> > >>> > >>> I've used rules engines in the past the support the notion of a NOT > >>> pattern/conditional element for firing rules when a particular item > >>> doesn't exist in working memory. Does Drools support such a > >>> feature? I can't find it in the docs. > >>> > >>> > >>> > >>> I want to apply the following logic: > >>> > >>> > >>> > >>> IF there is an event object available > >>> > >>> AND there is no existing event history object > >>> > >>> THEN. > >>> > >>> > >>> > >>> -Mitch > >>> > >>> > >>> > >>> > > > > > > > > > > > > > ******************************************************************************************************************************** > The information in this email is confidential and may be legally > privileged. If you have received this email in error or are > not the intended recipient, please immediately notify the sender and > delete this message from your computer. Any use, distribution, > or copying of this email other than by the intended recipient is strictly > prohibited. All messages sent to and from us may be > monitored to ensure compliance with internal policies and to protect our > business. > Emails are not secure and cannot be guaranteed to be error free as they > can be intercepted, amended, lost or destroyed, > or contain viruses. Anyone who communicates with us by email is taken to > accept these risks. > > 收发邮件者请注意： > 本邮件含保密信息，若误收本邮件，请务必通知发送人并直接删去，不得使用、传播或复制本邮件。 > 进出邮件均受到本公司合规监控。邮件可能发生被截留、被修改、丢失、被破坏或包含计算机病毒等不安全情况。 > > ******************************************************************************************************************************** >
