Dublin : JBoss BRMS (Drools) event Wed 28th August
by Mark Proctor
Just a reminder this event is for tomorrow:
http://blog.athico.com/2013/08/dublin-jboss-brms-drools-event-wed-28th.html
---
Thanks to Sabeo and IrishDev I'll be doing two presentations now, one in the morning, and one in the evening. Both events are free, but you must register, and spaces are limited. So please help spread the word.
Both events are sponsored by Sabeo, and the evening event is hosted by Dublin Java User Group (aka DubJUG).
Morning Event
Date : 28 August
Start: 09:30
Location: The Westin Dublin Hotel, College Green, Westmorland Street, Dublin 2
URL: http://tinyurl.com/mfralbu
Evening Event
Date : 28 August
Start: 18:30
Location TCube, Pheonix House, 32-34, Castle St, Dunblin 2
URL: http://irishdev.com/Home/Events/896-Dublin-Java-User-Group-.html
11 years, 4 months
drools engine freezes when idle
by arcee123
Greetings,
I am a new drools developer. This is my first installation.
I have followed the instructions for installation, and was able to bring up
Govnor and my my repositories.
It appears to work great.
The problem is that if the service sits idle, meaning no requests of the
Govnor repository, the resources on the machine tie up, and the service
freezes.
I am attempting to find the culprit, but I was hoping that someone here
might have seen this before, and is able to help me on the start point to
figuring out what's wrong.
Thank you.
--
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11 years, 4 months
Guvnor - Loading enums programatically using rule metadata
by GPatel＠tsys.com
The Guvnor manual specifies how to load enum data programtically but it
seems like only other fields on the same Fact can be used to filter the
values that can show up in the drop-down fields, as shown below:
'Fact.field[dependentField1, dependentField2]' : '(new
com.yourco.DataHelper()).getListOfAges("@{dependentField1}",
"@{dependentField2}")'
Is it possible to somehow use other rule attributes, like package name or
rule metadata to filter the list? Something like the following:
'Fact.field[dependentField1]' : '(new
com.yourco.DataHelper()).getListOfAges("@{dependentField1}",
drools.getRule().getMetaData().get("ID"))'
Thanks
G. Patel
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11 years, 4 months
guvnor rule editor
by mtg.wai.liauw
Hi,
I am trying to use the Guvnor rule editor to build rules. I created a fact
model with a String field. But I can't figure out how to build a rule that
this String field "not matches" a regex. I know DRL supports "not matches",
but how to do it on the rule editor?
Thanks in advance.
--
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11 years, 4 months
Timer in decision table from a different column?
by dunnlow
I have a Drools 5.5 guided decision table (via guvnor).
I am trying to populate both the timer value AND a value on the RHS with a
value from a single column. For example, I'm trying to produce code that
looks like:
I want to have source like:
rule "rule1"
timer(*1d*)
when
$car : Car (name matches "ford")
then
WorkIssue $wi = new WorkIssue();
$wi.setTimeout (*1d* );
end
Note that the timer and the setTimeout setter are using the same value.
Anyone have any insight on how/if this can be accomplished via decision
tables (I had it working in my templates)?
Thanks,
-J
--
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11 years, 4 months
Problem initializing Drools from EMF model editor plugin
by rmpillat
Hi,
I’m using the EMF model editor of the project MDT/BPMN2 to edit BPMN models
and I’d like to use Drools to validate my models. However, when the code
line:
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
is called into the editor application, I get the following error:
!ENTRY org.eclipse.ui 4 0 2013-08-22 15:56:32.784
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.e4.core.di.InjectionException: java.lang.NoClassDefFoundError:
org/drools/builder/KnowledgeBuilderFactory
at
org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:63)
at
org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:229)
at
org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:210)
at
org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:131)
at
org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:171)
at
org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.executeItem(HandledContributionItem.java:851)
at
org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.handleWidgetSelection(HandledContributionItem.java:744)
at
org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.access$7(HandledContributionItem.java:728)
at
org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem$4.handleEvent(HandledContributionItem.java:667)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4169)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3758)
at
org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1022)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at
org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:916)
at
org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:585)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:540)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
at org.eclipse.equinox.launcher.Main.main(Main.java:1414)
I’ve already added standard Drools runtime libs to build path, but the error
goes on.
Can someone help me?
Thanks,
Raquel
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11 years, 4 months
