[rules-users] Rules for generating calendar events

[Sverker Abrahamsson]

Hi Wolfgang

 

Well, to be more specific the resources are taxi cars. Each taxi has their
pre-defined shifts when they should be operating, then the drivers can sign
up for which shifts they want to work.

 

What I want to accomplish is to have a set of rules or formulas in a human
readable syntax which at beginning of each month generate these shifts. The
input to the rule/formula could e.g. be to iterate over the dates of the
month something like this:

 

Rule for shift: Every Monday 8-17

Input: Iterate over the dates of February 2012

Output: Shift (2012-02-06 8-17), Shift (2012-02-13 8-17), Shift (2012-02-20
8-17), Shift (2012-02-27 8-17)

 

Would this be suitable to implement with drools or do you have a suggestion
for a more appropriate tool?

Best regards

Sverker

 

From: rules-users-bounces at lists.jboss.org
[mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Wolfgang Laun
Sent: den 14 januari 2012 9:45
To: Rules Users List
Subject: Re: [rules-users] Rules for generating calendar events

 

There is one sentence that lets me ask whether you understand the

workings of a rule based system: "...the rules that generate the events...".

 

The essential idea of a RBS is the selection of data ("facts") based on its

attributes by conditions being evaluated over combinations of 

data items. Then, as a secondary activity, the RBS may be instructed

to create additional facts.

 

Generating facts out of Nothing is not the forte of a RBS; I don't see how

you could write rules that generate "events" by deriving them out of - what?

 

Perhaps you could provide more background?

-W

On 14 January 2012 02:47, sverker <sverker at abrahamsson.com> wrote:

Hi
I have an application where I want to generate calendar events. Each event
will have an attached resource and people will be able to book themselves to
this event. The events are re-occuring in that they are on fixed time each
day/weekday etc, like "every friday 07:00 -12:00 unless holiday" or
something like that. The events shall be batch generated at beginning of
each month and put into a database. I want the rules that generate the
events to have some kind of DSL to be easily readable also for
non-technishians.

My question, would drools be a suitable tool for this task? I've been trying
to find examples on the above but couldn't find any.

/Sverker

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