Drools beginner - unable to resolve method using strict-mode
by Stefan Schuster
Hi,
I'm new to drools, and I made my first steps using the very nice
video-tutorial "Build Pong in 13 minutes using JBoss Drools" found here:
http://www.youtube.com/watch?v=Omj4PR3v-nI
Eclipse shows building errors, but Pong start anyway. What does this error
mean?
in move.drl there is following rule:
*<rule "Move Bat Up" timer(expr: bat.speed, bat.speed) no-loop when*
* ui : PongUI( ready == true )*
* ( KeyPressed( keyText == "A" ) and bat : Bat( playerId ==
PlayerId.PlayerOne, y > pconf.padding + pconf.sideLineWidth )*
* or*
* KeyPressed( keyText == "K" ) and bat : Bat( playerId ==
PlayerId.PlayerTwo, y > pconf.padding + pconf.sideLineWidth ) ) *
* td : TableDirty( ) *
*then *
* tableG = ui.getTablePanel().getTableG();*
* tableG.setColor( Color.BLACK ); // background*
* tableG.fillRect( bat.x, bat.y, bat.width, bat.height );*
* *
* modify( bat ) { y = bat.y - 2 };*
* tableG.setColor( Color.WHITE ); // background*
* tableG.fillRect( bat.x, bat.y, bat.width, bat.height ); *
* modify( td ) { dirty = true };*
*end*
the error message is:
[Error: unable to resolve method using strict-mode:
org.drools.spi.KnowledgeHelper.td<http://org.drools.spi.knowledgehelper.td/>
()]
[Near : {... @Modify with( td ) { dirty = true }; ....}]
in another File (ui.drl) TableDirty is defined:
*declare TableDirty*
* @propertyReactive*
* dirty : boolean*
*end*
Any ideas what this error message means? And why can I start pong despite
this error?
Thanks a lot for helping me
Stefan
2 weeks
conways game of life
by Mark Proctor
For anyone looking for a good and complex example on how to write rules
properly, please look at Conways Game of Life in drools-examples, for
extra bonus points compare it to the old version in M1. You'll see
nearly all the logic is moved from java to the drl and we have removed
the need for nested objects by using objects relaitionally, which also
allows us to exploit cross products to drive the application.
Mark
2 weeks
Re: [rules-users] Private message regarding: [drools-usage] Update data model in Drools Workbench
by Michael Anstis
I don't know KIE Server very well. What is this "InstallRequest" of which
you speak!?
I assume KIE Server's artifact resolution mechanism is vanilla Maven, in
which case whether you want to install or deploy depends on whether KIE
Server is running on the same host as your local Maven repository.
If it is; then install should be sufficient; as Maven (used by KIE Server)
will first try to resolve artifacts against the local repository. If not;
then Maven will fail to resolve locally and try the configured remotes.
I don't know the life-cycle of KIE Server's "container" so an answer for
that needs to come from my colleagues.
Please use drools-usage mailing list.
On 26 April 2017 at 07:31, wang Sherry <wang.xye(a)gmail.com> wrote:
> Michael,
>
> Thanks for the reply. The jar file is already been installed into m2
> repository on KIE server. Here is the folder structure of m2 repository
> after each install. I am using InstallRequest API to install the jar
> and pom artifact. Do I need to Deploy as well? I disposed the container
> and recreated it again... No new rules were applied...
>
> [image: Inline images 1]
>
> On 26 April 2017 at 08:36, Michael Anstis <michael.anstis(a)gmail.com>
> wrote:
>
>> Seems like you're using KIE Server? Is it KIE Server that is not "seeing"
>> the revised Snapshots? What is the maven refresh policy for snapshots on
>> the server running KIE Server? It'll only detect updates once a day by
>> default.
>> On 25 Apr 2017 21:31, "wang Sherry" <wang.xye(a)gmail.com> wrote:
>>
>>> Hi, Michael,
>>>
>>> I followed your solution to auto generate kjar. I added the dependency
>>> and install the jar using Install to KIE's maven repository. Each time
>>> new timestamp is added to pom.xml of the kjar. After install, the container
>>> is disposed and recreated as well. But it will only take effect after a
>>> restart. I am using latest JBPM 7 Beta8
>>>
>>> https://groups.google.com/forum/?utm_medium=email&utm_source
>>> =footer#!msg/drools-usage/0MwV2n3juYo/41Mk7NumJwAJ
>>>
>>>
>>> Thanks
>>> Sherry
>>>
>>>
>>> On 24 April 2017 at 21:32, Michael Anstis <michael.anstis(a)gmail.com>
>>> wrote:
>>>
>>>> Nope, sorry. The cache is "internal" and not for public (API) usage.
>>>>
>>>> What problem do you have? What application server are you using?
>>>>
>>>> On 24 April 2017 at 01:03, wang Sherry <wang.xye(a)gmail.com> wrote:
>>>>
>>>>> Hi, Michael ,
>>>>>
>>>>> Is there any API that could be used to refresh the cache? I changed
>>>>> description in pom.xml each time when generating the JAR and then install
>>>>> it to m2 repository of KIE. It never refresh the cache....
>>>>>
>>>>> On Monday, 9 May 2016 21:14:53 UTC+12, Michael Anstis wrote:
>>>>>>
>>>>>> There is a cache of class meta-data extracted from the Project's
>>>>>> classes and Project's dependencies.
>>>>>>
>>>>>> The cache is cleared whenever a change to the pom.xml, kmodule.xml or
>>>>>> Project .java file is detected.
>>>>>>
>>>>>> Since you are only uploading a new JAR the Workbench is not detecting
>>>>>> any changes and the cache is not cleared.
>>>>>>
>>>>>> Try editing the pom.xml after uploading your new JAR (e.g. just
>>>>>> change the Project Description and save).
>>>>>>
>>>>>> On 9 May 2016 at 10:09, Marius Lazar <marius...(a)gmail.com> wrote:
>>>>>>
>>>>>>> I have uploaded a jar containing my data model to workbench through
>>>>>>> "Artifact repository" and set the version to "1.0-SNAPSHOT". Then I added
>>>>>>> the jar as a dependency to my project and I have built some rules with it (
>>>>>>> no need to add the jar to "Config" because the class inside jar is in the
>>>>>>> same package ).
>>>>>>>
>>>>>>> Now I want to update the data model. After I generate a new jar with
>>>>>>> the new data model (added a new property) and upload it again through
>>>>>>> "Artifact repository", I want to see the new field when I try to update a
>>>>>>> rule. ( I didn't add the jar to dependency list of the project again
>>>>>>> because the first time I have set the version to SNAPSHOT, so it should
>>>>>>> take the right one, and it does, but not the way I want it).
>>>>>>>
>>>>>>> I don't see the new field added nor when I refresh the project or
>>>>>>> refresh the page ( CTRL+F5 ), but I do see the field if I close the running
>>>>>>> instance of Workbench + Server ( CTRL+C on command line ) and start it
>>>>>>> again. ( I use the workbench and server on the same PC and opened them with
>>>>>>> one command ).
>>>>>>>
>>>>>>> I really need to do the refresh programmatically, without the need
>>>>>>> of restarting the running instance of workbench + server. Can you give me
>>>>>>> some guidance ?
>>>>>>>
>>>>>>> --
>>>>>>> You received this message because you are subscribed to the Google
>>>>>>> Groups "Drools Usage" group.
>>>>>>> To unsubscribe from this group and stop receiving emails from it,
>>>>>>> send an email to drools-usage...(a)googlegroups.com.
>>>>>>> To post to this group, send email to drools...(a)googlegroups.com.
>>>>>>> To view this discussion on the web visit
>>>>>>> https://groups.google.com/d/msgid/drools-usage/e88ec7e1-14b9
>>>>>>> -41d0-8864-8abbaf77a2e8%40googlegroups.com
>>>>>>> <https://groups.google.com/d/msgid/drools-usage/e88ec7e1-14b9-41d0-8864-8a...>
>>>>>>> .
>>>>>>> For more options, visit https://groups.google.com/d/optout.
>>>>>>>
>>>>>>
>>>>>>
>>>>
>>>
>
8 years, 5 months
