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For question 1, if your asking can a object matched be automatically
set to a variable that you can later reference? No. You have to
provide the binding else how would you know how to reference it.<br>
<br>
For question 2, the or part is tricky from the UI as you have to do
the and first then or embedded in the and. You accomplish that via
<b>Multiple field constraints</b>. So I guess you always want to
start on the outter condition and work your way in due to the
quirkiness of the UI.<br>
<br>
<img src="cid:part1.01080201.07050301@dna20.com" alt=""><br>
<br>
HTH<br>
Minh<br>
<br>
On 10/8/2010 5:11 AM, Dean Whisnant wrote:
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<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Minh,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">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: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">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: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">I do
have two follow on
questions if you don’t mind:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent: -0.25in;"><!--[if !supportLists]--><span
style="color: rgb(31, 73, 125);"><span style="">1)<span
style="font: 7pt "Times New Roman";">
</span></span></span><!--[endif]--><span style="color:
rgb(31, 73, 125);">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: -0.25in;"><!--[if !supportLists]--><span
style="color: rgb(31, 73, 125);"><span style="">2)<span
style="font: 7pt "Times New Roman";">
</span></span></span><!--[endif]--><span style="color:
rgb(31, 73, 125);">How does one go
about creating an “or” condition here in guvnor? <o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left: 1in;
text-indent: -0.25in;"><!--[if !supportLists]--><span
style="color: rgb(31, 73, 125);"><span style="">a.<span
style="font: 7pt "Times New Roman";">
</span></span></span><!--[endif]--><span style="color:
rgb(31, 73, 125);">If ((string1 != null
|| string2 != “AB”) && string1 != string2) then<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left: 1in;
text-indent: -0.25in;"><!--[if !supportLists]--><span
style="color: rgb(31, 73, 125);"><span style="">b.<span
style="font: 7pt "Times New Roman";">
</span></span></span><!--[endif]--><span style="color:
rgb(31, 73, 125);">If (string1 == “ABC”
|| string1 ==”XYZ” | string1==”QWERTY”) then<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">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: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">I
appreciate the help…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Dean<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<div>
<div style="border-right: medium none; border-width: 1pt
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<p class="MsoNormal"><b><span style="font-size: 10pt;
font-family:
"Tahoma","sans-serif"; color:
windowtext;">From:</span></b><span style="font-size:
10pt; font-family:
"Tahoma","sans-serif"; color:
windowtext;"> <a class="moz-txt-link-abbreviated" href="mailto:rules-users-bounces@lists.jboss.org">rules-users-bounces@lists.jboss.org</a>
[<a class="moz-txt-link-freetext" href="mailto:rules-users-bounces@lists.jboss.org">mailto:rules-users-bounces@lists.jboss.org</a>] <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 id="_x0000_i1025"
src="cid:part2.02050800.03040500@dna20.com" height="900"
width="994"><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:
rgb(150, 0, 0);">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: rgb(150, 0, 0);">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: rgb(150, 0, 0);">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: rgb(150, 0, 0);">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:
rgb(150, 0, 0);">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: -0.25in;">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: -0.25in;">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: -0.25in;">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: 0.25in;"><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: 0.25in;"><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: 0.25in;"><span
style="font-family:
"Tahoma","sans-serif";">insertLogical(fact0
);</span> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left: 0.25in;">
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left: 0.25in;">
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: 0.25in;"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left: 0.25in;">Thank you!<o:p></o:p></p>
<p class="MsoNormal" style="margin-left: 0.25in;"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left: 0.25in;">Dean Whisnant<o:p></o:p></p>
<p class="MsoNormal" style="margin-left: 0.25in;">Senior
Software Developer<o:p></o:p></p>
<p class="MsoNormal" style="margin-left: 0.25in;">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 moz-do-not-send="true" href="mailto:rules-users@lists.jboss.org">rules-users@lists.jboss.org</a><o:p></o:p></pre>
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