<a id="d0e6539">In the Drools Expert manual, search for <br>"And, finally, here is an example of Import, Variables and Functions.</a>"<br><br>The figure below shows cells from a spreadsheet.<br>-W<br><br><div class="gmail_quote">
2011/6/1 ChrisMu <span dir="ltr"><<a href="mailto:christopher.mullard@credit-suisse.com">christopher.mullard@credit-suisse.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div dir="ltr" align="left"><span><font face="Arial" size="2" color="#0000ff">Sorry - you're losing me - could you give an example
please?</font></span></div>
<div dir="ltr" align="left"><span><font face="Arial" size="2" color="#0000ff"><br>Thanks</font></span></div><br>
<div dir="ltr" lang="en-us" align="left">
<hr>
<font face="Tahoma" size="2"><div class="im"><b>From:</b> Wolfgang Laun-2 [via Drools]
[mailto:<a href="http://user/SendEmail.jtp?type=node&node=3011008&i=0" rel="nofollow" link="external" target="_blank">[hidden email]</a>] <br></div><b>Sent:</b> 01
June 2011 15:25<div class="im"><br><b>To:</b> Mullard, Christopher<br><b>Subject:</b> Re:
[rules-users] Smart Templates<br></div></font><br></div><div class="im">
<div></div>It's just like a Java static method. Call JAva code if you don't want
to put it all into DRL function, or import from Java in the first place. Both
"import" and "function" can be used in spreadsheets.<br>-W<br><br><br>
</div><div class="gmail_quote">2011/6/1 ChrisMu <span dir="ltr"><<a href="http://user/SendEmail.jtp?type=node&node=3010989&i=0" rel="nofollow" link="external" target="_blank">[hidden email]</a>></span><div>
<div></div><div class="h5"><br>
<blockquote class="gmail_quote" style="border-left: 2px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding: 0px 1em;">
<div dir="ltr" align="left"><span><font face="Arial" size="2" color="#0000ff">Agreed,
but this was just an example - if the function required something more
complicated - say a DB lookup, could it be done?</font></span></div><br>
<div dir="ltr" lang="en-us" align="left">
<hr>
<font face="Tahoma" size="2"><b>From:</b> Wolfgang Laun-2 [via Drools] [mailto:<a href="http://user/SendEmail.jtp?type=node&node=3010490&i=0" rel="nofollow" link="external" target="_blank">[hidden email]</a>]
<br><b>Sent:</b> 01 June 2011 12:40<br><b>To:</b> Mullard,
Christopher<br><b>Subject:</b> Re: [rules-users] Smart
Templates<br></font><br></div>
<div></div>If there are just 2 types (<span><font face="Arial" size="2" color="#0000ff">IRDELTA, </font></span><span><span><span><font face="Arial" size="2" color="#0000ff">COMLEASEDELTA) you can add a function that computes this from the
3-letter name.</font></span></span></span><br>-W<br><br><br>
<div class="gmail_quote">2011/6/1 ChrisMu <span dir="ltr"><<a href="http://user/SendEmail.jtp?type=node&node=3010275&i=0" rel="nofollow" link="external" target="_blank">[hidden email]</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 2px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding: 0px 1em;">
<div dir="ltr" align="left"><span><font face="Arial" size="2" color="#0000ff">Possibly. Let me try again with what I'm trying to
achieve.</font></span></div>
<div dir="ltr" align="left"><span><font face="Arial" size="2" color="#0000ff">Given
this excerpt from a decision table:</font></span></div>
<div dir="ltr" align="left"><span><font face="Arial" size="2" color="#0000ff"></font></span> </div>
<div dir="ltr" align="left"><span><font face="Arial" size="2" color="#0000ff"><img src=""></font></span></div>
<div dir="ltr" align="left"><span><font face="Arial" size="2" color="#0000ff"></font></span> </div>
<div dir="ltr" align="left"><span><font face="Arial" size="2" color="#0000ff">Basically I want to be able to specify a template that says 'If Arg0
is a currency, output RiskType IRDELTA (and currency), if Arg0 is a
commodity (begins with 'X') then output RiskType COMLEASEDELTA (and
commodity).</font></span></div>
<div dir="ltr" align="left"><span><font face="Arial" size="2" color="#0000ff"></font></span> </div>
<div dir="ltr" align="left"><span><font face="Arial" size="2" color="#0000ff">When fed
with data, this would generate the rules:</font></span></div>
<div dir="ltr" align="left"><span><font face="Arial" size="2" color="#0000ff"></font></span> </div>
<div dir="ltr" align="left"><span><font face="Arial" size="2" color="#0000ff">when
Arg0 = USD, output RiskType IRDELTA, USD</font></span></div>
<div dir="ltr" align="left"><span><span><font face="Arial" size="2" color="#0000ff">when Arg0 = GBP, output RiskType IRDELTA,
GBP</font></span></span></div>
<div dir="ltr" align="left"><span><span><font face="Arial" size="2" color="#0000ff">etc</font></span></span></div>
<div dir="ltr" align="left"><span><span><span><font face="Arial" size="2" color="#0000ff">when Arg0 = XAU, output RiskType COMLEASEDELTA,
XAU</font></span></span></span></div>
<div><span></span><font face="Arial"><font color="#0000ff"><font size="2">etc</font></font></font></div>
<div><font face="Arial"><font color="#0000ff"><font size="2"></font></font></font> </div>
<div><font face="Arial"><font color="#0000ff"><font size="2">I<span>n this way
theRiskType name is inferred from the data when the rules are generated. It
can be done by explicitly stating all possible combinations as in the
decision table above but that gets tedious quickly. I wanted to have a more
general template that could generate all the specific rules
instances.</span></font></font></font></div>
<div><font face="Arial"><font color="#0000ff"><font size="2"><span></span></font></font></font> </div>
<div><font face="Arial"><font color="#0000ff"><font size="2"><span>Does that make
more sense?</span></font></font></font></div>
<div><font face="Arial"><font color="#0000ff"><font size="2"><span></span></font></font></font> </div>
<div><font face="Arial"><font color="#0000ff"><font size="2"><span>Thanks</span></font></font></font></div>
<div><font face="Arial"><font color="#0000ff"><font size="2"><span>Chris</span></font></font></font></div>
<div><font face="Arial"><font color="#0000ff"><font size="2"><span></span></font></font></font> </div>
<div><br></div>
<div dir="ltr" lang="en-us" align="left">
<hr>
<font face="Tahoma" size="2"><b>From:</b> Wolfgang Laun-2 [via Drools]
[mailto:<a href="http://user/SendEmail.jtp?type=node&node=3010119&i=0" rel="nofollow" link="external" target="_blank">[hidden email]</a>]
<br><b>Sent:</b> 01 June 2011 11:21<br><b>To:</b> Mullard,
Christopher<br><b>Subject:</b> Re: [rules-users] Smart
Templates<br></font><br></div>
<div></div>I don't want to confuse you, but have you considered <i>not
</i>using templates at all? If you can generate N rules from N objects
containing different literals for matching a fact or for updating a fact
field, then you can achieve the same thing with a single rule <i>and
additional facts containing those literal values.</i><br><br>rule "one 4
all"<br>when<br>Â Â Service( $name: name, $value: value
)<br>Â Â $sb: ServiceBean( name == $name, value == $value
)<br>then<br>Â Â # RiskType ... is what?<br>Â Â
...$value..., ...$sb.getType()...
<br>end<br><br>-W<br><br><br>_______________________________________________
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