[rules-users] Decision Table

[Tihomir Surdilovic]

To add to Wolfgangs response, you are missing

public static final int HIGHROADS = 4
in the Assignment class, also since you are updating Assignment in the 
rule actions you should either put NO-LOOP on each of the rules, or you 
could use a "trick" to set "lock-on-active" on a package level (see 
uploaded xls). With the also uploaded test, the results I am getting are:
*****
Knowledgebase read
All rules fired
Status: 0
Message: Heavy snow and cold. Medium clearance on main roads
*****
and you can also see the generated DRL (using SpreadsheetCompiler). 
Checking the generated DRL of your decision table is useful for 
debugging in the future.

Hope this helps ;)

Thanks.
Tihomir

On 12/27/10 10:13 AM, Wolfgang Laun wrote:
> Hi Frank
>
> Join C8:F8 and change the contents to
>    a:Assignment() and w:Weather
> all conditions deal with Weather - they'll be inserted into the last 
> pair of parentheses that will be added to Weather. (The "and" is 
> redundant as it is implied for patterns at the outermost level. There 
> should be a single Assignment fact, and I guess there is only one 
> Weather.)
>
> I would not add an update(a) to each individual action; another ACTION 
> column with $param; in row nine and "update(a)" in all rows below lets 
> you remove the repeated "update(a)" from H9:J9. (But this is, perhaps, 
> a matter of taste.)
>
> Cheers
> Wolfgang
>
> PS: Regretfully, this set of rules is going to be late for this winter ;-)
>
>
>
> On 27 December 2010 10:23, FrankVhh <frank.vanhoenshoven at agserv.eu 
> <mailto:frank.vanhoenshoven at agserv.eu>> wrote:
>
>
>     Hi all,
>
>     I am a brand new user of the Drools-tools and am not quite
>     comfortable with
>     the tools yet. The current problem I am having, is caused by an
>     "Unknown
>     parsing error" in a decision table.
>
>     >From past experience, I guess I have made a syntax error
>     somewhere in the
>     file. However, I am not able to detect the error myself. Probably
>     it is a
>     quite simple mistake, caused by a combination of inexperience and
>     neglectance :-).
>
>     I figured I could use an extra pair of eyes and was hoping that some
>     friendly community member could help me out on this.
>
>     I will annex the table as well as the java code that contains the java
>     classes (the table isn't callad from the code yet).
>     http://drools-java-rules-engine.46999.n3.nabble.com/file/n2150980/strooidiensten.java
>     strooidiensten.java
>     http://drools-java-rules-engine.46999.n3.nabble.com/file/n2150980/clearance.xls
>     clearance.xls
>
>     Thank you very much in advance!
>
>     Kind regards,
>
>     Frank
>     --
>     View this message in context:
>     http://drools-java-rules-engine.46999.n3.nabble.com/Decision-Table-tp2150980p2150980.html
>     Sent from the Drools - User mailing list archive at Nabble.com.
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>
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