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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I recently came across Drools. I gone through the
documentation and the examples provide are quite simple. I want to know if it
can be really applied to complex real world problems.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Take for example,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=ListParagraphCxSpFirst style='margin-right:0in;margin-bottom:0in;
margin-left:.25in;margin-bottom:.0001pt;line-height:150%;text-autospace:none'><font
size=2 color=black face=Arial><span style='font-size:11.0pt;line-height:150%'>If
a customer login within 5 minutes from two different locations, mark the user invalid.</span></font></p>
<p class=ListParagraphCxSpMiddle style='margin:0in;margin-bottom:.0001pt;
line-height:150%;text-autospace:none'><font size=2 color=black face=Arial><span
style='font-size:11.0pt;line-height:150%'>How can I write the above rule in
drools? I have the data when the user last logged in and the data of current
login. You can say two objects.</span></font></p>
<p class=ListParagraphCxSpMiddle style='margin:0in;margin-bottom:.0001pt;
line-height:150%;text-autospace:none'><font size=2 color=black face=Arial><span
style='font-size:11.0pt;line-height:150%'> </span></font></p>
<p class=ListParagraphCxSpLast style='margin:0in;margin-bottom:.0001pt;
line-height:150%;text-autospace:none'><font size=2 color=black face=Arial><span
style='font-size:11.0pt;line-height:150%'>May be my understanding is wrong but
looks like based on rule I have to pass all the required data. How can then at
real time new rules can be added?</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>For example,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=ListParagraphCxSpFirst style='margin-right:0in;margin-bottom:0in;
margin-left:.25in;margin-bottom:.0001pt;line-height:150%;text-autospace:none'><font
size=2 color=black face=Arial><span style='font-size:11.0pt;line-height:150%'>If
the customer location is not on a list of valid locations, mark the user
invalid.</span></font></p>
<p class=ListParagraphCxSpMiddle style='margin:0in;margin-bottom:.0001pt;
line-height:150%;text-autospace:none'><font size=2 color=black face=Arial><span
style='font-size:11.0pt;line-height:150%'> </span></font></p>
<p class=ListParagraphCxSpMiddle style='margin:0in;margin-bottom:.0001pt;
line-height:150%;text-autospace:none'><font size=2 color=black face=Arial><span
style='font-size:11.0pt;line-height:150%'>For the above rule I need to pass a
list of valid locations as well.</span></font></p>
<p class=ListParagraphCxSpMiddle style='margin:0in;margin-bottom:.0001pt;
line-height:150%;text-autospace:none'><font size=2 color=black face=Arial><span
style='font-size:11.0pt;line-height:150%'> </span></font></p>
<p class=ListParagraphCxSpMiddle style='margin:0in;margin-bottom:.0001pt;
line-height:150%;text-autospace:none'><font size=2 color=black face=Arial><span
style='font-size:11.0pt;line-height:150%'>Now how about “Customer login
from more than 5 locations in the last one month”?</span></font></p>
<p class=ListParagraphCxSpMiddle style='margin:0in;margin-bottom:.0001pt;
line-height:150%;text-autospace:none'><font size=2 color=black face=Arial><span
style='font-size:11.0pt;line-height:150%'> </span></font></p>
<p class=ListParagraphCxSpLast style='margin:0in;margin-bottom:.0001pt;
line-height:150%;text-autospace:none'><font size=2 color=black face=Arial><span
style='font-size:11.0pt;line-height:150%'>Thanks</span></font></p>
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<p class=MsoNormal><b><font size=1 color="#4e81c4" face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:#4E81C4;font-weight:bold'>Mr.
Bhangale Bhushan</span></font></b><font size=1 color="#4e81c4" face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:#4E81C4'><br>
<i><span style='font-style:italic'>Associate Manager</span></i><br>
<strong><b><font face=Verdana><span style='font-family:Verdana'>Kale
Consultants Ltd.</span></font></b></strong><br>
<a href="mailto:bhushan_bhangale@kaleconsultants.com"><font color="#4e81c4"><span
style='color:#4E81C4;text-decoration:none'>bhushan_bhangale@kaleconsultants.com</span></font></a><br>
tel: <a
href="http://www.plaxo.com/click_to_call?lang=en&src=jj_signature&To=%2B91+%280%29206+608+3777&Email=bhushan_bhangale@kaleconsultants.com"
target="_blank" title="Click to call. Cheap rates & no headset required!"><font
color="#4e81c4"><span style='color:#4E81C4;text-decoration:none'>+91 (0)206
608 3777</span></font></a><br>
<a href="http://www.kaleconsultants.com" target="_blank"><font color="#4e81c4"><span
style='color:#4E81C4;text-decoration:none'>http://www.kaleconsultants.com</span></font></a>
</span></font></p>
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