Examples of IRObject

com.dtrules.interpreter.IRObject
Every Rules Engine object implements the IRObject interface. This interface is used by the Interpreter to execute objects, and by the implementation of operators to manipulate objects.

This interface implements the necessary methods for doing the data conversions necessary when extracting data from the Rules Engine state after having executed a set of rules. @author Paul Snow
org.omg.CORBA.IRObject

Examples of com.dtrules.interpreter.IRObject

    static class Forfirst extends ROperator {
        Forfirst(){super("forfirst");}


        public void execute(DTState state) throws RulesException {
            RArray   array = state.datapop().rArrayValue();
            IRObject test  = state.datapop();
            IRObject body  = state.datapop();
            Iterator<REntity> ie = (Iterator<REntity>) array.getIterator();
            while(ie.hasNext()){
                state.entitypush(ie.next());
                test.execute(state);
                if(state.datapop().booleanValue()){
                    body.execute(state);
                    state.entitypop();
                    return;
                }
                state.entitypop();
            }

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Examples of com.dtrules.interpreter.IRObject

    static class ForFirstElse extends ROperator {
        ForFirstElse(){super("forfirstelse");}


        public void execute(DTState state) throws RulesException {
            RArray   array = state.datapop().rArrayValue();
            IRObject test  = state.datapop();
            IRObject body2 = state.datapop();
            IRObject body1 = state.datapop();
            for(IRObject obj : array) {
                IREntity e = obj.rEntityValue();
                state.entitypush(e);
                test.execute(state);
                if(state.datapop().booleanValue()){
                    body1.execute(state);
                    state.entitypop();
                    return;
                }
                state.entitypop();
            }

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Examples of com.dtrules.interpreter.IRObject


        public void execute(DTState state) throws RulesException {
            int         limit     = state.datapop().intValue();
            int         increment = state.datapop().intValue();
            int         start     = state.datapop().intValue();
            IRObject    body      = state.datapop();
            if(increment>0){
                for(int i = start;i<limit;i+=increment){
                    state.cpush(RInteger.getRIntegerValue(i));
                    body.execute(state);
                    state.cpop();
                }
            }else{
                for(int i = start;i>limit;i+=increment){
                    state.cpush(RInteger.getRIntegerValue(i));
                    body.execute(state);
                    state.cpop();
                }
            }
        }

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Examples of com.dtrules.interpreter.IRObject

     */
    static class Allocate extends ROperator {
        Allocate(){super("allocate"); alias("cpush");}


        public void execute(DTState state) throws RulesException {
            IRObject v = state.datapop();
            if(state.testState(DTState.TRACE)){
                state.traceInfo("allocate", "value",v.stringValue(),null);
            }
            state.cpush(v);
        }

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Examples of com.dtrules.interpreter.IRObject

    static class Localfetch extends ROperator {
        Localfetch(){super("local@");}


        public void execute(DTState state) throws RulesException {
            int      index = state.datapop().intValue();
            IRObject value = state.getFrameValue(index);
            if(state.testState(DTState.TRACE)){
                state.traceInfo("local_fetch", "index",index+"","value",value.stringValue(),null);
            }
            state.datapush(value);
        }

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Examples of com.dtrules.interpreter.IRObject

    static class Localstore extends ROperator {
        Localstore(){super("local!");}


        public void execute(DTState state) throws RulesException {
            int      index = state.datapop().intValue();
            IRObject value = state.datapop();
            if(state.testState(DTState.TRACE)){
                state.traceInfo("local_store", "index",index+"","value",value.stringValue(),null);
            }
            state.setFrameValue(index, value);
        }

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Examples of com.dtrules.interpreter.IRObject

    static class Lookup extends ROperator {
        Lookup(){super("lookup");}


        public void execute(DTState state) throws RulesException {
            RName name = state.datapop().rNameValue();
            IRObject value = state.find(name);
            if(value == null){
                throw new RulesException(
                        "undefined",
                        "Lookup",
                        "Could not find a value for "+name.stringValue()+" in the current context."

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Examples of com.dtrules.interpreter.IRObject

       */
    static class Greaterthan extends ROperator {
      Greaterthan(){super(">");}


      public void execute(DTState state) throws RulesException {
          IRObject o2 = state.datapop();
          IRObject o1 = state.datapop();
        long number2 = o2.longValue();
        long number1 = o1.longValue();
        state.datapush(RBoolean.getRBoolean(number1 > number2));
      }

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Examples of com.dtrules.interpreter.IRObject

       */
    static class Booleanequal extends ROperator {
      Booleanequal(){super("b="); alias("beq");}


      public void execute(DTState state) throws RulesException {
          IRObject o2 = state.datapop();
          IRObject o1 = state.datapop();
          boolean r = false;
          try{
              r = o1.booleanValue() == o2.booleanValue();
          }catch(RulesException e){}   // Ignore any failures, and simply fail.
          
        state.datapush(RBoolean.getRBoolean(r)  );
      }

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Examples of com.dtrules.interpreter.IRObject

        FAdd(){
            super("f+");alias("fadd");
        }


        public void execute(DTState state) throws RulesException {
            IRObject b = state.datapop();
            IRObject a = state.datapop();
            state.datapush(RDouble.getRDoubleValue(a.doubleValue()+b.doubleValue()));
        }

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