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Drools Filip notes - Revision history
2026-04-21T08:49:34Z
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Filip Stachecki: /* Adding clipboard sharing */
2014-06-16T13:04:05Z
<p><span class="autocomment">Adding clipboard sharing</span></p>
<p><b>New page</b></p><div>[[Category: Private]]<br />
<br />
=Preparing jbpm installer=<br />
* copy jbpm-installer.full.fresh to jbpm-installer<br />
==Adding German keyboard in Ubuntu==<br />
* cogwheel -> System Settings -> Keybord layout -> Add<br />
==Adding clipboard sharing==<br />
:[[File:ClipCapIt-140616-150331.PNG|500px]]<br />
<br />
=KIE=<br />
==No internet solution==<br />
Connection to the internet is required (downloading examples from git repository)<br />
* go to jbpm-installer folder<br />
* open build.xml in text editor<br />
* find kie.demo<br />
* change all values to false<br />
<arg value="-Dorg.kie.demo=false" /><br />
* in a console type (remove GIT repository)<br />
rm .niogit/ -R -f<br />
* start demo again<br />
==Important java command :) ==<br />
killall java<br />
==Ex1==<br />
http://training-course-material.com/training/Drools_Kie_-_Example<br />
<br />
=Eclipse=<br />
==Frist Rule==<br />
<pre><br />
package np01stateless<br />
import com.nobleprog.Applicant;<br />
rule "Is of valid age"<br />
when<br />
$a : Applicant( age < 18 )<br />
then<br />
$a.setValid( false );<br />
end<br />
</pre><br />
<br />
when<br />
$a : Applicant( age < 18 )<br />
<br />
2 conditions:<br />
* there is an Applicant<br />
* whose age is < 18<br />
<br />
We don't need to use '$'<br />
==Shopping Cart Exercise==<br />
=== Show TDD===<br />
* Create test first (modify previous example)<br />
ShoppingCart sc = new ShoppingCart(12000.00);<br />
assertFalse( sc.getDiscount() == 0.1);<br />
kSession.execute( sc );<br />
assertTrue( sc.getDiscount() == 0.1);<br />
* Add Java class<br />
** Generate setters/getters<br />
If you want to test more ShoppingCart objects you can:<br />
* execute the rule twice or more<br />
* use some kind of structure - list to pass objects<br />
* create another test method<br />
===Modify totalPrice===<br />
* truth maintenance<br />
How to avoid it:<br />
* no-loop attribute (between rule and when)<br />
* create flag (another field in the Class) e.g. discountApplied=true/false</div>
Filip Stachecki