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<p class=MsoNormal><span style='color:#1F497D'>Minh,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Thank you! The binding to
a variable is the part I was missing in order to accomplish 2 & 3 and #1
was as simple as using the formula to say null.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Last night I worked through this
and some matching Regex issues I had.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I do have two follow on
questions if you don’t mind:<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='color:#1F497D'><span style='mso-list:Ignore'>1)<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='color:#1F497D'>Can the binding be
done in another way where you don’t have to set it up on each rule?<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='color:#1F497D'><span style='mso-list:Ignore'>2)<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='color:#1F497D'>How does one go
about creating an “or” condition here in guvnor? <o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;
mso-list:l0 level2 lfo1'><![if !supportLists]><span style='color:#1F497D'><span
style='mso-list:Ignore'>a.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='color:#1F497D'>If ((string1 != null
|| string2 != “AB”) && string1 != string2) then<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;
mso-list:l0 level2 lfo1'><![if !supportLists]><span style='color:#1F497D'><span
style='mso-list:Ignore'>b.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='color:#1F497D'>If (string1 == “ABC”
|| string1 ==”XYZ” | string1==”QWERTY”) then<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>These scenarios all seem so
simple to me from a DRL hand coding, so I know they must be able to be handled in
guvnor and I’m just missing some subtle nuance.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I appreciate the help…<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Dean<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'> rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] <b>On Behalf Of </b>Minh Huon<br>
<b>Sent:</b> Thursday, October 07, 2010 8:31 PM<br>
<b>To:</b> Rules Users List<br>
<b>Subject:</b> Re: [rules-users] Guvnor LHS and RHS questions<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Look at screen shot for questions 1 and 2<br>
<br>
<img width=994 height=900 id="_x0000_i1025"
src="cid:image001.png@01CB66BF.143B5310"><br>
<br>
<br>
UI is a little screwy but you can check for null.<br>
<br>
As for question 3, if you look at the source of your drl, you'll see if you
have a named reference to your object if not, you cannot use it on the right
hand side. If you look at my rule, I'm setting the contents of <b>override
</b>to <b>resultNumberToPick </b>which is what I think your trying to
accomplish.<br>
<br>
hth<br>
<br>
Minh<br>
<br>
<br>
On 10/7/2010 2:15 PM, Dean Whisnant wrote: <o:p></o:p></p>
<p class=MsoNormal>Hello,<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>I’ve only been working with Drools for a little over a
month or so now and I’ve begun integrating it into my application via
Eclipse and creating DRL files. The nature of this application is to take
a data record from one file and create a new data record in another file.
This is done in a batch of any number of records, depending on the number of
records sent to us in the first file. To accomplish this I have two classes,
one representing each file, and I create and object for each of them, inserting
them into the knowledge session and then fire the rule. <o:p></o:p></p>
<p class=MsoNormal><span style='font-family:Monaco'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-family:Monaco'>
ksession.insert(myObjectIn);</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-family:Monaco'>
ksession.insert(myObjectOut);</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-family:Monaco'>
ksession.fireAllRules();</span><o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>The first object has around 1,000 fields and the second has
250, so my class structure is quite broad.<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>In a DRL file I have created the following rule:<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal><b><span style='font-family:Monaco;color:#960000'>rule</span></b><span
style='font-family:Monaco'> </span><span style='font-family:Monaco;color:green'>"Primary
Diagnosis Code"</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-family:Monaco'> </span><b><span
style='font-family:Monaco;color:#960000'>when</span></b><o:p></o:p></p>
<p class=MsoNormal><span style='font-family:Monaco'>
$ccl : anObjectIn(IncomingDiag1 != </span><b><span style='font-family:Monaco;
color:#960000'>null</span></b><span style='font-family:Monaco'>)</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-family:Monaco'>
$cdl : anObjectOut()</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-family:Monaco'> </span><b><span
style='font-family:Monaco;color:#960000'>then</span></b><span style='font-family:
Monaco'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-family:Monaco'>
$cdl.PrimaryDiag = $ccl.IncomingDiag1;</span><o:p></o:p></p>
<p class=MsoNormal><b><span style='font-family:Monaco;color:#960000'>end</span></b><o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>This rule fires great and the PrimaryDiag field in
myObjectOut is updated with what iss in myObjectIn.<span style='font-family:
Monaco'>IncomingDiag</span>. I can then write the object back out the the
database fine.<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>A requirement of my project is that I allow users (analysts)
to create their own rules that are above and beyond those I might create in a
.drl file. To do so we are looking to deploy Guvnor and let them use the Guided
editor to create rules. I’ve already loaded my fact models into
Guvnor and have them available in the drop down conditions.<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>The questions that are hitting me now are:<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in'>On the LHS when I’ve
chosen the fiels IncomingDiag the only options I have for conditions are
“equal to”, “not equal to”, “matches”, and
“sounds like”. I don’t see an option for null or notnull. If I
were to choose “not equal to” I then have the options for Literal
Values, New Formulas, or Expression Editor (which has none by default). I
haven’t seen any examples where someone is evaluating a field in Guvnor
for being either “” or null. How would one accomplish
this? The literal value does not allow you to leave it blank as in
“” and if you type “” in it, the source shows
“”””.<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in'>On the LHS, if I were to
want to evaluate IncomingDiag1 == IncomingDiag2 I don’t see a method
except if I were to choose New Formula and type in the field name Incoming
Diag2. Is there another way that they could be prompted for the field
choises again?<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in'>On the RHS, when I go to
add a new then, I’m prompted to choose only to either “insert fact <span
style='font-family:Monaco'>anObjectIn</span>” or to “logically insert
fact <span style='font-family:Monaco'>anObjectIn</span>” or to manually
enter DRL logic. Both of the inserts appear to create logic that would
create a new object with the data in it:<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.25in'><span style='font-family:Monaco'>anObjectIn</span><span
style='font-family:"Tahoma","sans-serif"'> fact0 = new </span><span
style='font-family:Monaco'>anObjectIn</span><span style='font-family:"Tahoma","sans-serif"'>
();</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.25in'><span style='font-family:"Tahoma","sans-serif"'>fact0.</span><span
style='font-family:Monaco'> IncomingDiag1</span><span style='font-family:"Tahoma","sans-serif"'>
( 11 );</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.25in'><span style='font-family:"Tahoma","sans-serif"'>insertLogical(fact0
);</span> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.25in'>
<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.25in'>
But what I really want is something similar to my DRL from above. Am I
missing something? Or would this have to be a case where they would
manually enter the DRL statement?<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.25in'> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.25in'>Thank you!<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.25in'> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.25in'>Dean Whisnant<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.25in'>Senior Software Developer<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.25in'>basys, inc.<o:p></o:p></p>
<pre><o:p> </o:p></pre><pre><o:p> </o:p></pre><pre>_______________________________________________<o:p></o:p></pre><pre>rules-users mailing list<o:p></o:p></pre><pre><a
href="mailto:rules-users@lists.jboss.org">rules-users@lists.jboss.org</a><o:p></o:p></pre><pre><a
href="https://lists.jboss.org/mailman/listinfo/rules-users">https://lists.jboss.org/mailman/listinfo/rules-users</a><o:p></o:p></pre></div>
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