Examples of org.drools.KnowledgeBaseConfiguration

org.drools.KnowledgeBaseConfiguration
A class to store KnowledgeBase related configuration. It must be used at KnowledgeBase instantiation time or not used at all.

This class will automatically load default values from a number of places, accumulating properties from each location. This list of locations, in given priority is: System properties, home directory, working directory, META-INF/ of optionally provided classLoader META-INF/ of Thread.currentThread().getContextClassLoader() and META-INF/ of ClassLoader.getSystemClassLoader()

So if you want to set a default configuration value for all your new KnowledgeBase, you can simply set the property as a System property.

After the KnowledgeBase is created, it makes the configuration immutable and there is no way to make it mutable again. This is to avoid inconsistent behaviour inside KnowledgeBase.

The following properties are supported:
- drools.maintainTms = <true|false>
- drools.assertBehaviour = <identity|equality>
- drools.logicalOverride = <discard|preserve>
- drools.sequential = <true|false>
- drools.sequential.agenda = <sequential|dynamic>
- drools.removeIdentities = <true|false>
- drools.shareAlphaNodes = <true|false>
- drools.shareBetaNodes = <true|false>
- drools.alphaNodeHashingThreshold = <1...n>
- drools.compositeKeyDepth = <1..3>
- drools.indexLeftBetaMemory = <true/false>
- drools.indexRightBetaMemory = <true/false>
- drools.consequenceExceptionHandler = <qualified class name>
- drools.maxThreads = <-1|1..n>
- drools.multithreadEvaluation = <true|false>
The follow properties have not yet been migrated from the Drools 4.0 api:
- drools.executorService = <qualified class name>
- drools.conflictResolver = <qualified class name>
- drools.ruleBaseUpdateHandler = <qualified class name>

        str += "then \n";
        str += "    list.add( $i.rule.name + ':' + $s  ); \n";
        str += "    kcontext.blockActivation( $i ); \n";
        str += "end \n";


        KnowledgeBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
        kconf.setOption( DeclarativeAgendaOption.ENABLED );
        KnowledgeBase kbase = loadKnowledgeBaseFromString( kconf, str );
        StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);
        List list = new ArrayList();
        ksession.setGlobal( "list",
                            list );

View Full Code Here

        str += "then \n";
        str += "    list.add( $i.rule.name + ':' + $s  ); \n";
        str += "    kcontext.blockActivation( $i ); \n";
        str += "end \n";


        KnowledgeBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
        kconf.setOption( DeclarativeAgendaOption.ENABLED );
        KnowledgeBase kbase = loadKnowledgeBaseFromString( kconf, str );
        StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);


        return ksession;
    }

View Full Code Here

        str += "then \n";
        str += "    list.add( $i.rule.name + ':' + $s  ); \n";
        str += "    kcontext.blockActivation( $i ); \n";
        str += "end \n";


        KnowledgeBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
        kconf.setOption( DeclarativeAgendaOption.ENABLED );
        KnowledgeBase kbase = loadKnowledgeBaseFromString( kconf, str );
        StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);
        List list = new ArrayList();
        ksession.setGlobal( "list",
                            list );

View Full Code Here

        str += "then \n";
        str += "    list.add( kcontext.rule.name + ':' + $i.rule.name + ':' + $s  ); \n";
        str += "    kcontext.unblockAllActivations( $i ); \n";
        str += "end \n";


        KnowledgeBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
        kconf.setOption( DeclarativeAgendaOption.ENABLED );
        KnowledgeBase kbase = loadKnowledgeBaseFromString( kconf, str );
        StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);
        List list = new ArrayList();
        ksession.setGlobal( "list",
                            list );

View Full Code Here

        //str += "   System.out.println( kcontext.rule.name  + ':' + $i ); \n";
        str += "    list.add( 'block:' + $i.rule.name  ); \n";
        str += "    kcontext.blockActivation( $i ); \n";
        str += "end \n";


        KnowledgeBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
        kconf.setOption( DeclarativeAgendaOption.ENABLED );
        KnowledgeBase kbase = loadKnowledgeBaseFromString( kconf, str );
        StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);
        List list = new ArrayList();
        ksession.setGlobal( "list",
                            list );

View Full Code Here

        str += "     $i : Activation( department == 'sales' ) \n";
        str += "then \n";
        str += "    kcontext.cancelActivation( $i ); \n";
        str += "end \n";


        KnowledgeBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
        kconf.setOption( DeclarativeAgendaOption.ENABLED );
        KnowledgeBase kbase = loadKnowledgeBaseFromString( kconf, str );
        StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);


        final List cancelled = new ArrayList();

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        str += "then \n";
        str += "    list.add( $active + ':' + $inActive  ); \n";
        str += "    kcontext.halt( ); \n";
        str += "end \n";


        KnowledgeBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
        kconf.setOption( DeclarativeAgendaOption.ENABLED );
        KnowledgeBase kbase = loadKnowledgeBaseFromString( kconf, str );
        StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);


        List list = new ArrayList();
        ksession.setGlobal( "list",

View Full Code Here

                "    $i : Activation( department == 'sales' )\n" +
                "then\n" +
                "    kcontext.cancelActivation($i);\n" +
                "end";


        KnowledgeBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
        kconf.setOption( DeclarativeAgendaOption.ENABLED );
        KnowledgeBase kbase = loadKnowledgeBaseFromString( kconf, str );
        StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);


        List list = new ArrayList();
        ksession.setGlobal( "list", list );

View Full Code Here

                "    $i : Activation( department == 'sales', category == 'special' )\n" +
                "then\n" +
                "    kcontext.cancelActivation($i);\n" +
                "end";


        KnowledgeBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
        kconf.setOption( DeclarativeAgendaOption.ENABLED );
        KnowledgeBase kbase = loadKnowledgeBaseFromString( kconf, str );
        StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);


        List list = new ArrayList();
        ksession.setGlobal( "list", list );

View Full Code Here

                     " kcontext.cancelActivation( $v );\n" +
                     "end\n" +
                     "\n" +
                     "\n";


        KnowledgeBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
        kconf.setOption( DeclarativeAgendaOption.ENABLED );
        KnowledgeBase kbase = loadKnowledgeBaseFromString( kconf, drl );
        StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);


        List list = new ArrayList();
        ksession.setGlobal( "list", list );

View Full Code Here

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