Embedded Drools into clustered application
by cafebabe
Hi,
Based on my understanding from reading some drools posts and blogs, stateful
knowledge session will not work correctly if drools is embedded into an
application deployed in clustered application servers. Am I right?
What if I want to use embedded drools purely for its BPM (drools flow) in
clustered application? Any gotchas to take note or it will simply not
working?
anybody has related experience?
(i found there is work-in-progress alternative - drools grid. but i prefer
to start with embedded drools flow bcoz it is simpler to code and offers
more control.)
--
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Sent from the Drools - User mailing list archive at Nabble.com.
15 years, 4 months
Guvnor's data in Oracle 11g Database.
by tom ska
Hi,
I have a problem with creating Guvnor repository using Oracle 11g database.
When I try to run JBoss, drools-guvnor.war deployment process is failed.
Info from server log and my config (repository.xml) are below:
Oracle JDBC provider has been copied to JBOSS_HOME/server/default/lib/.
I use the latest version of Drools Guvnor and JBoss 4.2.3.
Any ideas?
Many thanks,
tom
Log:
-------------------------
(...)
2010-08-17 11:40:55,932 DEBUG
[javax.enterprise.resource.webcontainer.jsf.config] No FacesServlet found in
deployment descriptor - bypassing configuration
2010-08-17 11:41:00,456 INFO [STDOUT] ERROR 17-08 11:41:00,440
(RepositoryImpl.java:initStartupWorkspaces:542) Failed to initialize
workspace 'default'
javax.jcr.RepositoryException: Cannot instantiate persistence manager
org.apache.jackrabbit.core.persistence.db.OraclePersistenceManager
at
org.apache.jackrabbit.core.RepositoryImpl.createPersistenceManager(RepositoryImpl.java:1433)
at
org.apache.jackrabbit.core.RepositoryImpl.access$800(RepositoryImpl.java:125)
at
org.apache.jackrabbit.core.RepositoryImpl$WorkspaceInfo.doInitialize(RepositoryImpl.java:2014)
at
org.apache.jackrabbit.core.RepositoryImpl$WorkspaceInfo.initialize(RepositoryImpl.java:1997)
at
org.apache.jackrabbit.core.RepositoryImpl.initStartupWorkspaces(RepositoryImpl.java:535)
at
org.apache.jackrabbit.core.RepositoryImpl.<init>(RepositoryImpl.java:366)
at
org.apache.jackrabbit.core.RepositoryImpl.create(RepositoryImpl.java:673)
at
org.apache.jackrabbit.core.TransientRepository$2.getRepository(TransientRepository.java:231)
at
org.apache.jackrabbit.core.TransientRepository.startRepository(TransientRepository.java:279)
at
org.apache.jackrabbit.core.TransientRepository.login(TransientRepository.java:375)
at
org.apache.jackrabbit.commons.AbstractRepository.login(AbstractRepository.java:123)
at
org.drools.guvnor.server.repository.RepositoryStartupService.newSession(RepositoryStartupService.java:151)
at
org.drools.guvnor.server.repository.RepositoryStartupService.create(RepositoryStartupService.java:72)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
at
org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
at
org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
at
org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
at
org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
at
org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:166)
at
org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:102)
at
org.drools.guvnor.server.repository.RepositoryStartupService_$$_javassist_1.create(RepositoryStartupService_$$_javassist_1.java)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:138)
at org.jboss.seam.Component.callComponentMethod(Component.java:2171)
at org.jboss.seam.Component.callCreateMethod(Component.java:2094)
at org.jboss.seam.Component.newInstance(Component.java:2054)
at org.jboss.seam.contexts.Contexts.startup(Contexts.java:304)
at org.jboss.seam.contexts.Contexts.startup(Contexts.java:278)
at
org.jboss.seam.contexts.ServletLifecycle.endInitialization(ServletLifecycle.java:112)
at org.jboss.seam.init.Initialization.init(Initialization.java:727)
at
org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:34)
at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3856)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4361)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:790)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:770)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:553)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:296)
at
org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at
org.apache.catalina.core.StandardContext.init(StandardContext.java:5312)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:296)
at
org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at
org.jboss.web.tomcat.service.TomcatDeployer.performDeployInternal(TomcatDeployer.java:301)
at
org.jboss.web.tomcat.service.TomcatDeployer.performDeploy(TomcatDeployer.java:104)
at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:375)
at org.jboss.web.WebModule.startModule(WebModule.java:83)
at org.jboss.web.WebModule.startService(WebModule.java:61)
at
org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
at
org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at
org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
at $Proxy0.start(Unknown Source)
at org.jboss.system.ServiceController.start(ServiceController.java:417)
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy44.start(Unknown Source)
at
org.jboss.web.AbstractWebContainer.start(AbstractWebContainer.java:466)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at
org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at
org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
at org.jboss.mx.interceptor.DynamicIntercep
2010-08-17 11:41:00,534 INFO [STDOUT]
tor.invoke(DynamicInterceptor.java:97)
at
org.jboss.system.InterceptorServiceMBeanSupport.invokeNext(InterceptorServiceMBeanSupport.java:238)
at
org.jboss.wsf.container.jboss42.DeployerInterceptor.start(DeployerInterceptor.java:87)
at
org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.start(SubDeployerInterceptorSupport.java:188)
at
org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:95)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy45.start(Unknown Source)
at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
at sun.reflect.GeneratedMethodAccessor21.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at
org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at
org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy9.deploy(Unknown Source)
at
org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
at
org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634)
at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
at
org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:336)
at
org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
at
org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at
org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
at $Proxy0.start(Unknown Source)
at org.jboss.system.ServiceController.start(ServiceController.java:417)
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy4.start(Unknown Source)
at org.jboss.deployment.SARDeployer.start(SARDeployer.java:304)
at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:766)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at
org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at
org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy5.deploy(Unknown Source)
at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:482)
at org.jboss.system.server.ServerImpl.start(ServerImpl.java:362)
at org.jboss.Main.boot(Main.java:200)
at org.jboss.Main$1.run(Main.java:508)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.apache.jackrabbit.core.config.ConfigurationException:
Configured class
org.apache.jackrabbit.core.persistence.db.OraclePersistenceManager does not
contain a property named errorHandling
at
org.apache.jackrabbit.core.config.BeanConfig.newInstance(BeanConfig.java:198)
at
org.apache.jackrabbit.core.RepositoryImpl.createPersistenceManager(RepositoryImpl.java:1428)
... 176 more
2010-08-17 11:41:00,580 INFO [STDOUT] ERROR 17-08 11:41:00,580
(RepositoryImpl.java:initStartupWorkspaces:543) Unable to start
repository, forcing shutdown...
2010-08-17 11:41:00,596 INFO [STDOUT] ERROR 17-08 11:41:00,596
(RepositoryImpl.java:<init>:404) failed to start Repository: Cannot
instantiate persistence manager
org.apache.jackrabbit.core.persistence.db.OraclePersistenceManager
javax.jcr.RepositoryException: Cannot instantiate persistence manager
org.apache.jackrabbit.core.persistence.db.OraclePersistenceManager
(...)
==================================================================================================================================
repository.xml:
---------------
<?xml version="1.0"?>
<!DOCTYPE Repository PUBLIC "-//The Apache Software Foundation//DTD
Jackrabbit 1.4//EN"
"
http://jackrabbit.apache.org/dtd/repository-1.4.dtd">
<Repository>
<FileSystem class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
<param name="path" value="${rep.home}"/>
</FileSystem>
<Security appName="Jackrabbit">
<AccessManager
class="org.apache.jackrabbit.core.security.SimpleAccessManager">
<!-- <param name="config" value="${rep.home}/access.xml"/> -->
</AccessManager>
<LoginModule
class="org.apache.jackrabbit.core.security.SimpleLoginModule">
<!-- anonymous user name ('anonymous' is the default value) -->
<!-- <param name="anonymousId" value="anonymous"/> -->
<!--
default user name to be used instead of the anonymous user
when no login credentials are provided (unset by default)
-->
<!-- <param name="defaultUserId" value="superuser"/> -->
</LoginModule>
</Security>
<Workspaces rootPath="${rep.home}/workspaces"
defaultWorkspace="default"/>
<Workspace name="${wsp.name}">
<FileSystem
class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
<param name="path" value="${wsp.home}"/>
</FileSystem>
<PersistenceManager
class="org.apache.jackrabbit.core.persistence.bundle.OraclePersistenceManager">
<param name="driver" value="oracle.jdbc.OracleDriver"/>
<param name="url" value="jdbc:oracle:thin:@localhost
:1521:database"/>
<param name="user" value="guvnor"/>
<param name="password" value="guvnor"/>
<param name="schema" value="oracle"/>
<param name="schemaObjectPrefix" value="default_"/>
</PersistenceManager>
<SearchIndex
class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
<param name="path" value="${wsp.home}/index"/>
<param name="textFilterClasses"
value="org.apache.jackrabbit.extractor.MsWordTextExtractor,org.apache.jackrabbit.extractor.MsExcelTextExtractor,org.apache.jackrabbit.extractor.MsPowerPointTextExtractor,org.apache.jackrabbit.extractor.PdfTextExtractor,org.apache.jackrabbit.extractor.OpenOfficeTextExtractor,org.apache.jackrabbit.extractor.RTFTextExtractor,org.apache.jackrabbit.extractor.HTMLTextExtractor,org.apache.jackrabbit.extractor.XMLTextExtractor"/>
<param name="extractorPoolSize" value="2"/>
<param name="supportHighlighting" value="true"/>
</SearchIndex>
</Workspace>
<Versioning rootPath="${rep.home}/version">
<FileSystem
class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
<param name="path" value="${rep.home}/version" />
</FileSystem>
<PersistenceManager
class="org.apache.jackrabbit.core.persistence.bundle.OraclePersistenceManager">
<param name="driver" value="oracle.jdbc.OracleDriver"/>
<param name="url" value="jdbc:oracle:thin:@localhost
:1521:database"/>
<param name="user" value="guvnor"/>
<param name="password" value="guvnor"/>
<param name="schema" value="oracle"/>
<param name="schemaObjectPrefix" value="version_"/>
</PersistenceManager>
</Versioning>
<SearchIndex class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
<param name="path" value="${rep.home}/repository/index"/>
<param name="textFilterClasses"
value="org.apache.jackrabbit.extractor.MsWordTextExtractor,org.apache.jackrabbit.extractor.MsExcelTextExtractor,org.apache.jackrabbit.extractor.MsPowerPointTextExtractor,org.apache.jackrabbit.extractor.PdfTextExtractor,org.apache.jackrabbit.extractor.OpenOfficeTextExtractor,org.apache.jackrabbit.extractor.RTFTextExtractor,org.apache.jackrabbit.extractor.HTMLTextExtractor,org.apache.jackrabbit.extractor.XMLTextExtractor"/>
<param name="extractorPoolSize" value="2"/>
<param name="supportHighlighting" value="true"/>
</SearchIndex>
</Repository>
15 years, 4 months
Is Drools 5.1 backward compatible with 5.0.1?
by Chee Kin Lim
Hi,
I am new to Drools and learning it by reading "Drools JBoss Rules 5.0
Developer's Guide" at the moment.
However, the test cases of chapter 3 was failed when execute with Drools
5.1.0.CR1.
I suspect the test is broken due to the sequential option enabled with code
block below:
KnowledgeBaseConfiguration configuration =
KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
configuration.setOption(SequentialOption.YES);
You can view the complete code at
http://code.google.com/p/droolsbook/source/browse/trunk/droolsBookParent/...
Is this code block compatible with Drools 5.1? As it is working without any
problem in 5.0.1.
If it is incompatible, I would like to know how to migrate it to Drools
5.1.0.
Please advice.
Thanks,
Chee Kin
15 years, 4 months
configuration settings in guvnor 5.0
by Swapnil Sawant
Hi,
I am new to drools.I have found that guvnor is intended more for technical person than for any layman. And I was trying to use it from point-of-view of any layman(i.e. managing rule in such a fashion that any layman can use guvnor 5.0 GUI with requiring least amount of technical knowledge)
I have written a rule for PF calculation (PF=BASIC*0.10) in guvnor GUI.
For this, I have created a fact type 'Amount' with fields : basic,PF. Using this fact type, I have created a business rule for PF calculation.
Now, I want to know if it is possible to configure the 'percentage' i.e. 0.10 value in flexible manner , may be through some table or some configuration file in guvnor etc
So next time the rule changes e.g. PF=BASIC*0.15 , such a configuration would make any layman to modify the rule very easily(he just has to change the value in configuratuion file etc)
Is there any provision made in guvnor for this to make
Thanks & Regards,
Swapnil Sawant
________________________________
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15 years, 4 months
KnowledgeBase partitioning
by Orlando Ricardo Da Silva Costa
Hi all
I am trying to assess Drools (Expert, Fusion and Flow) for a new
project and I read already some documentation, and when looking at
Fusion manual:
http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/tr...
I got this message:
"This is an experimental feature, subject to changes in the future."
What does it mean exactly, can I suppose this feature will remain and
I can start using it now? Has the status evolved since then?
Thanks in advance
Orlando.
PS-In the book "Drools JBoss Rules 5.0 by Developer's Guide" (Michal
Bali), this feature is described with no limitation or warning...
15 years, 4 months
Using variables in Temporal Operators
by Mike Love
Hi,
Is it possible to use variables in temporal operators?
e.g. $eventA : EventA( this after[ 3m30s, 4m ] $eventB ) to be
expressed as $eventA
: EventA( this after[ $begin, $end ] $eventB )
where $begin and $end are either local rule variables or global variables
Regards
15 years, 4 months
Drools 5 for process simulation
by Labin, Jonathan W.
Drools users,
I am currently researching Drools 5 as a potential toolkit to enable my next
project. I have read through the Documentation for Drools Expert, Flow and
skimmed through Fusion and I believe that Drools looks it provides many
features we need. However, I am concerned about one aspect of the way that
the system seems to operate and was wondering if anyone could point me to a
section of documentation (chapter of the manual / wiki / external how-to
blog post... whatever) that will clear things up for me.
I would like to use Drools Flow to define behaviors of agents as Flow
Processes to create an agent-based simulation. This application requires
that the processes are kept synchronized with each other by a simulated
(faster than real time) clock.
Is there a Drools mechanism that enables this? Would I need to create a set
of WorkItemHandler classes that perform the synchronization manually? Is
what I want to do not really practical within the Drools Flow framework?
Thanks in advance,
Jonathan Labin
15 years, 4 months
Re: [rules-users] Where is MinaTaskClient ? (Gustavo Tenrreiro)
by Eugenio Abello
See this:
package org.drools.task.service.mina;
import org.drools.SystemEventListenerFactory;
import org.drools.task.service.TaskClient;
import org.drools.task.service.TaskServiceLifeCycleBaseTest;
import org.drools.task.service.mina.MinaTaskClientConnector;
import org.drools.task.service.mina.MinaTaskServer;
import org.drools.task.service.mina.MinaTaskClientHandler;
public class TaskServiceLifeCycleMinaTest extends
TaskServiceLifeCycleBaseTest {
private MinaTaskServer server;
@Override
protected void setUp() throws Exception {
super.setUp();
server = new MinaTaskServer(taskService);
Thread thread = new Thread(server);
thread.start();
Thread.sleep(500);
client = new TaskClient(new MinaTaskClientConnector("client 1",
new
MinaTaskClientHandler(SystemEventListenerFactory.getSystemEventListener())));
client.connect("127.0.0.1", 9123);
}
protected void tearDown() throws Exception {
super.tearDown();
client.disconnect();
server.stop();
}
}
15 years, 4 months
Running decision table as web application
by Kripa Nathwani
Hello,
I have prepared a sample decision table and made it run as a java application by integrating Drools in Eclipse. Now how do I integrate decision table file (xls) into web application so that next time when any rule changes or a new one is added, I just have to make change in xls file and things would start working without any other change ?
For example:
I have created PF rule(12% of basic) in a decision table and now I want to integrate this decision table in my application so that next time PF rule changes (e.g. 15% of basic) I just have to modify from 12 to 15 and it would start reflecting the updated rule.
Hope it sounds clear.
Thanks
Kripa
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15 years, 4 months
