Package org.kie.internal.runtime

Examples of org.kie.internal.runtime.StatefulKnowledgeSession.retract()

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        StatefulKnowledgeSession ksession = knowledgeBase.newStatefulKnowledgeSession( sessionConfig,
                                                                                       KnowledgeBaseFactory.newEnvironment() );
        PseudoClockScheduler pseudoClock = ksession.<PseudoClockScheduler>getSessionClock();

        FactHandle h = ksession.insert( new A() );
        ksession.retract( h );
    }

    public static class A
        implements
        Serializable {
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        }  
       
        ksession.update( f1, "s1" );
        assertNotNull( ksession.getObject( f1 ) );
        ksession.retract( f1 );
       
        ksession.retract( f1 );
        assertNull( ksession.getObject( f1 ) );
    }
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        ksession.update( f1, "s1" );
        assertNotNull( ksession.getObject( f1 ) );
        ksession.retract( f1 );
       
        ksession.retract( f1 );
        assertNull( ksession.getObject( f1 ) );
    }

    private static class ReentrantAction implements WorkingMemoryAction {
        // I am using AtomicInteger just as an int wrapper... nothing to do with concurrency here
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        for ( int i = 0; i < length; i++) {
            FactHandle handle = handles.get( i );        
           
            // now retract with disconnected facthandle
            handle = new DefaultFactHandle(((DefaultFactHandle)handle).toExternalForm());
            ksession.retract( handle );
            assertEquals( length - i -1, ksession.getObjects().size() );
            assertEquals( length - i -1, ksession.getFactHandles().size() );           
        }       
       
        assertEquals( 0, ksession.getObjects().size() );
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        for ( int i = 0; i < length; i++) {
            FactHandle handle = handles.get( i );        
           
            // now retract with disconnected facthandle
            handle = new DefaultFactHandle(((DefaultFactHandle)handle).toExternalForm());
            ksession.retract( handle );
            assertEquals( length - i -1, ksession.getObjects().size() );
            assertEquals( length - i -1, ksession.getFactHandles().size() );           
        }       
       
        assertEquals( 0, ksession.getObjects().size() );
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        //Test 2nd level (parent) to make sure rule honors the extend rule
        list = new ArrayList();
        session.setGlobal( "list",
                           list );
        session.retract( handle );
        final Cheese mycheese2 = new Cheese( "notcheddar",
                                             4 );
        org.kie.api.runtime.rule.FactHandle handle2 = session.insert( mycheese2 );
        session.fireAllRules();
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        //Test 3 levels of inheritance, all levels
        list = new ArrayList();
        session.setGlobal( "list",
                           list );
        session.retract( handle2 );
        final Cheese mycheese3 = new Cheese( "stilton",
                                             6 );
        org.kie.api.runtime.rule.FactHandle handle3 = session.insert( mycheese3 );
        session.fireAllRules();
        //System.out.println(list.toString());
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        //Test 3 levels of inheritance, third only
        list = new ArrayList();
        session.setGlobal( "list",
                           list );
        session.retract( handle3 );
        final Cheese mycheese4 = new Cheese( "notstilton",
                                             6 );
        org.kie.api.runtime.rule.FactHandle handle4 = session.insert( mycheese4 );
        session.fireAllRules();
        //System.out.println(((List) session.getGlobal( "list" )).toString());
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        //Test 3 levels of inheritance, 2nd only
        list = new ArrayList();
        session.setGlobal( "list",
                           list );
        session.retract( handle4 );
        final Cheese mycheese5 = new Cheese( "stilton",
                                             7 );
        org.kie.api.runtime.rule.FactHandle handle5 = session.insert( mycheese5 );
        session.fireAllRules();
        //System.out.println(((List) session.getGlobal( "list" )).toString());
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        assertEquals( "got cheese",
                      list.get( 0 ) );
        assertEquals( 1,
                      list.size() );

        session.retract( h );
        session.fireAllRules();

        // still just one
        assertEquals( 1,
                      list.size() );
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