Hello,
I am trying to make a rule to delay firing until a certain amount of time
has passed without another event being received. I have set up a loop that
goes every 10 seconds in my main application that takes readings and injects
them into the ReadingStream. These are like sensor reading
How would I raise the event strictly from the consequence of that rule? Is
it basically creating a new object something like the following?
//rule "detect a stream data object"
When
MyDataStreamObject($val: fieldValue < 20) from entry point
"DATA"
Then
//I want t
So would I simply call fireUntilHalt() in a loop in a separate thread? Is
Halt called by the engine when all rules have fired, or so I need to also
call that explicitly?
Thanks,
Chris
_
From: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] On Beha
Hi,
I'm evaluating Drools 5.0 for use in a WebSphere 6.1.0.13 (Java 1.5 JRE)
environment, and I've encountered an exception that I can't seem to fix. I
downloaded the Drools examples and started looking at the HelloWorldExample
class. First I executed it on standalone IBM JVM (not in a servlet
Yes, you could use agenda filters, but I think agenda groups are more what
you're looking for. Agenda groups allow you to do the staging type behavior
easily, usually implemented by having a rule that is of lower priority than the
rest of the rules in the group moving to the next stage using dr
Yes to both. However to the first part (rules firing "automatically") you need
to use fireUntilHalt() instead of fireAllRules(). fireUntilHalt blocks (until
halt is called) so you need to invoke it in a separate Thread. Then from
another thread you can insert events into the entry points. Fo
I guess a folow up would be, would it be possible to terminate a long lived
event that was generated with the arrival of another event?
Thanks,
Chris
_
From: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] On Behalf Of Chris Richmond
Sent: Friday,
It is my understanding that an event will be detected as soon as it is
inserted into a stream.meaning that I don't have to explicitly call
fireRules in order to evaluate events, but them will be evaluated as soon as
I insert them into a stream, so a rule like the one below would fire as soon
as I p
Would agenda filters be a good usage in this scenario.
I have a set of objects I want to evaluate in stages, and so I only want
certain rules to fire at certain stages. So the idea would be to have the
main application do some work on those objects then updte and fire rules on
them for stag
I don't know if this will be useful, but...
I had many problems (some really wierd ones) while my eclipse runtime had
Drools 5.0.1 jars.Then I changed it to Drools 5.1.0 jars and everything
started to work.
Maybe you should try that!
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuil
Hi,
I am new to the drools engine. I am using drools 5.0.
Issue is, If I add Split node to process flow, I am getting
java.lang.NoSuchMethodError exception .
java.lang.NoSuchMethodError:
...returnValueEvaluator0(Lorg/drools/spi/ProcessContext;)Ljava/lang/Object;
..
The whole idea of the pluggable work items is for end users to make it
very easy to create their own node types: simply add a configuration
file that describes the properties of those nodes and register a handler
at runtime to execute it. They even show up in the palette on the
tooling. Check out
Kris Verlaenen wrote:
>
>> 3. Is Flow based on its own PVM or jBPM PVM? Is it also possible to
>> extend flow with new flow constructs?
> It is based on a generic process engine. We offer a set of core
> constructs but this is extensible (for example, to support OSWorkflow
> migration, a custom
Hi,
Apologies if this topic has been discussed before but I had a search through
the archive and didn't find anything.
First, I will explain my planned usage.
We have a set of rules that are growing over time. Rules can be shared across
applications.
Ideally I would like to search through my s
The http/xml/json interface provided by drools-server for remote execution of
rules from non-JVM apps is wonderful. Is there a similar interface for
importing rules authored in non-JVM client apps as xml or drl files? I have
not been able to find one. Thanks in advance.
Ken Archer
Telogical
There indeed seems to be an issue here. Basically, once you insert the
person object, the engine will start processing constraints. It will
notice your Person() constraint of your wait node has become true now,
and will continue the execution of the process. In this case however,
it has not yet
> 1. Exception flow* is also crucial for me. Is it possible to extend
> Flow to support it?
Flow currently allows you to use fault nodes to signal an error.
Exception handlers can be attached to the process or to composite nodes
(to allow for some nested exception handler scopes). These exception
Hi All,
I'm getting an error when firing the rule using the accumulate function:
Number(intValue >= 1) from accumulate( fact() over window:time(1d) from
entry-point "MyEntryPoint", init( int mytotal = 0; ),action( mytotal++;
),reverse( mytotal--; ),result( new Integer(mytotal) ))
The error is:
The WS-HumanTask server is just an example of how you could integrate a
human task server in your application (using a separate service). If
this is too heavy-weight for your needs, you can simply implement your
own work item handler and delegate the human task requests to a
component of your choi
Hi,
I am using Drools 5
I am facing following issue :-
While trying to access change-set.xml with decision table entry, I am getting
NULLPOINTEREXCEPTION
Following code is change-set.xml :-
e.g.
Please Reply If anybody is able to access decision table in
One proposal: Don't put the values to which you compare the attributes into
rules; put them into additional facts. Consider:
rule "bounds_a_1_10"
when
Fact( a >= 1 && <= 10 )
then ... end
and similar for 11:100, 101:1000,... could be handled by a single rule and
a set of Limit-type facts:
ru
Hello,
I'm using drools 4.0.7. I have excel with about 4000 rows. After compiling it,
the final Package is about 30 MB. And that's only one sheet, I have 3 of them.
Total size is about 60MB. It's too big to hold it in memory, but too slow to
read it from a file or database every time. Is the
fero wrote:
>
> 2. How to extend Activities. Now it is possible to put the code of
> activity in the process definition in MVEL or java. I would prefer to
> select the class and provide attributes of a class from process definition
> as it is in jBPM (called delagation). Is it possible to create
Hello,
I'm interested in using Drools Flow. I use jBPM as workflow and also Drools
4.x as rule engine but joint of both in Drools 5.x seems amazing. JBPM also
does not support events (signal event and conditional event), which in
Drools are supported and are crucial for me. So I would say many of
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