Thanks a million Laune, but I'm still getting the same error
I created a new project and copied the same code you posted but still the
same error.
I'm attaching my complete project (without jar files, they can be referenced
in .classpath file), please help me kill my desperation to know what I'm
Does this mean that this problem is due to running this program in Eclipse?
I already tried it running in application server as well but it's throwing
same error.
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Thanks Laune,
I'm using java version 1.6.0_29
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Thanks Laune, I tried executing it after adding msgCtClass.writeFile(); but
it's still throwing the same exception.
If you could please share the version of lib files you are using along with
the file with the changes?
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Hello,
I'm trying to build a rule which accepts the dynamic facts. The dynamic
facts are created using the javassist API. The rule works fine when I'm
adding a single rule but as soon as I declare any function in the drl file
the rule doesn't compile.
*Following is the code sample for creating
Thanks a million for your reply.
Yes this is a sample code because the one I'm actually working on is much
complex. The actual flow is
- create dynamic object and keep it in map
- create session and load drl
- insert all the dynamically created object in drools session
- fire all rules.
Yes,
Laune,
Thank you a lot for your reply. Here I go explaining the code.
*I'm generating dynamic java objects. In this the class file is made once
and on each request we make a new instance and insert it in drools session*
public Object getFact ()
throws CannotCompileException,
' is the function
name.
I will appreciate if someone can help me resolve it. Thanks!
BR
Ayush
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Folks,
It's a burning issue for me, I would appreciate if someone can help me
solving it.
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I'm afraid is there no solution to this problem?
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Hi All,
When I'm trying to execute multiple evals I'm getting errors. Below is what
I'm trying to do
MyEvent(prop1=XYZ) over window:time(1m) from entry-point
MyStream
or
(MyEvent() over window:time(1m) from entry-point MyStream
and
Hi, I even tried using below approach
AlertReceivedEvent() over window:time(1m) from entry-point
NotificationStream
$I1 : Double() from getIsgNodeCount()
Number(doubleValue $I1) from accumulate(
pls avoid this is just to make my post ACCEPTABLE
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Hi, I even tried using below approach
AlertReceivedEvent() over window:time(1m) from entry-point
NotificationStream
$I1 : Double() from getIsgNodeCount()
Number(doubleValue $I1) from accumulate(
When I'm trying to execute multiple evals I'm getting errors. Below is what
I'm trying to do
MyEvent(prop1=XYZ) over window:time(1m) from entry-point
MyStream
or
(MyEvent() over window:time(1m) from entry-point MyStream
and
Is not there any way using which we can keep rules in say different files and
just import them in a single file. This will make the rule management an
easy process. Please help me doing this? I don't want to keep all my rules
in a single/long file.
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Hi, I've to write a rule in which there are multiple and, or conditions. Like
(
MyEvent(prop = 1)
or
MyEvent(prop = 2)
or
MyEvent(prop = 3)
)
and
MyEvent(prop = 4)
and
MyEvent(prop = 5)
I tried to implement it like
$E: (
MyEvent(prop = 1)
or
Hi, Thanks for your reply.
Actually it is lot more complex. Let me present it this way
(
(MyEvent(id == 83020402))
or
MyEvent()
(Number( doubleValue = $numberofISGCDBnodes*.50 )
from accumulate( MyEvent( id ==
Thank you. This worked
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Hi, I'm trying to implement regular expression using matches. The regular
expression is dynamic and retrieved from a java function. In my first
approach I'm tried to call the java function for matches like
MyEvent(prop1 matches This event is for+getPropName()+ and is sent to
blah blah blah)
Now
Thank you all.
I solved it by using eval((myprop matches ...+) == true). I used
eval because though without eval it was not throwing any error but it was
not running either
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Hi, I'm getting problem while executing rule with or condition.
My rule is like
MyEvent () from entry-point MyStream
Number($objCountForOne : doubleValue) from accumulate( MyEvent(prop1 ==
One) over window:time(1m) from entry-point MyStream,count())
eval($objCountForOne getMyNodeCount()*0.35)
Formatting the rule in above post
MyEvent () from entry-point MyStream Number($objCountForOne : doubleValue)
from accumulate( MyEvent(prop1 == One) over window:time(1m) from
entry-point MyStream,count()) eval($objCountForOne getMyNodeCount()*0.35)
or
MyEvent () from entry-point MyStream
Hi, I'm also facing the same problem...I've to get latest 3 drools events
which can be received at anytime say within 10 minutes. I tried using
sliding window wherein the window will rotate on the complete expiry time of
drools events.
$E1 : MyEvent(prop1 = MyProp) from entry-point MyStream
Thanks for replies. Actually what I did now is I declared my fact into drl
file and then I'd added an @expires to it. It works fine but now the problem
is that for every fact inserted I'd also inserted an event for it.
Now as the drl file can be updated by user so say he'd defined expiry time
Thanks. Actually I did it in different way what I did is I declared my fact
into drl file as declare MyFact and then I'd added an @expires to it. It
works fine but now the problem is that for every fact inserted I'd also
inserted an event for it.
Now as the drl file can be updated by user so
oh yes Thanks this rule will solve my problem.
I'm wondering is there any way I can actually verify the business logic of
my rules. I'd read about drools-verifier but I've not found enough
information for it to be used with drl. I want that in some way I can check
the business logic from java
Ok so drools will not be garbage collecting the facts (as I'm not calling
dispose()) and I've to retract them manually.
I was wondering cannot there be any way in which I can define expiry time
for facts in the same way I declare for events i.e. @expiry
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Hi,
In my drools implementation I'm inserting all my facts into working memory
and for every fact received I'm also inserting events into notification
stream.
Now the StatefulKnowledgeSession I'm using is static and it is neither
initialized nor disposed after being initialized for first time.
Thanks for your reply.
Also let me know about facts which are loaded into working memory (Keeping
in mind that I'm not calling session.dispose()).
Where should I define their expiry time or how should I retract them after 5
minutes?
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Thanks for the reply.
Can you please elaborate on it?
Well we are facing issues keeping same session and entry point alive through
out the application.
As each event will be received as a new thread in my application so when I'm
calling the class which inserts into session and fire-all rules
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Thank you for your reply.
I think I was heading into the wrong direction. Now when I've synchronized
the function which is creating session, session is static and is only called
once, and firing the rules it's working fine. I'm planning to use JMS
wherein consumer will be syncronized. Is this
Thank you for your reply.
I think I was heading into the wrong direction. Now when I've synchronized
the function which is creating session, session is static and is only called
once, and firing the rules it's working fine. I'm planning to use JMS
wherein consumer will be syncronized. Is this
Thanks a lot Wolfgang for your prompt reply. I'm able to move forward now
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Hi All,
I'm trying to implement drools fusion into my app. The scenario of my app is
as follows:
- Facts will be received continuosly.
- On receving fact I'm generating a new event and adding it into a new
working memory entry point stream. Also I'm adding facts into session coz
I'll be
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