Examples of com.dtrules.interpreter.RArray

com.dtrules.interpreter.RArray
Immplements Arrays for Decision Tables. Because we can't tag references, we do the same trick here that we do for RNames, i.e. we create an executable and a non-executable version of each array. However, we only create one ArrayList.

If dups is true, we allow duplicate references in the array. Sometimes it is pleasent to have an array whose values are all unique. In that case, create an array with dups set to false.

@author ps24876

       */    
    static class Copyelements extends ROperator {
      Copyelements() {super("copyelements");}
      
      public void execute(DTState state) throws RulesException {
        RArray rarray     = state.datapop().rArrayValue();
        RArray newRArray  = rarray.clone(state.getSession()).rArrayValue();
        if(state.testState(DTState.TRACE)){
                  state.traceInfo("copyelements","id",rarray.getID()+"","newarrayid",newRArray.getID()+"",null);
            for(IRObject v : newRArray){
                      state.traceInfo("addto", "arrayID",rarray.getID()+"",v.postFix());
            }
                }

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         */     
        static class DeepCopy extends ROperator {
            DeepCopy () {super("deepcopy");}
            
            public void execute(DTState state) throws RulesException {
                RArray rarray     = state.datapop().rArrayValue();
                RArray newRArray  = rarray.deepCopy(state.getSession()).rArrayValue();
                
                if(state.testState(DTState.TRACE)){
                    state.traceInfo("copyelements","id",rarray.getID()+"","newarrayid",newRArray.getID()+"",null);
                    for(IRObject v : newRArray){
                        state.traceInfo("addto", "arrayID",rarray.getID()+"",v.postFix());
                    }
                }

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      public void execute(DTState state) throws RulesException {
        boolean asc  = state.datapop().booleanValue();
        int direction = asc ? 1 : -1;
        
        RArray rarray             = state.datapop().rArrayValue();
        ArrayList<IRObject> array = rarray.arrayValue();
        
                if(state.testState(DTState.TRACE)){
                   state.traceInfo("sort", "length",array.size()+"","arrayID",rarray.getID()+"",asc ? "true" : "false");
                }


        IRObject temp = null;
        int size = array.size();
        for(int i=0; i<size-1; i++){

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      */
     public static class Translate extends ROperator {
         Translate(){super("translate"); }
         public void arrayExecute(DTState state) throws RulesException {
             boolean duplicates = state.datapop().booleanValue();
             RArray  keys       = state.datapop().rArrayValue();
             RTable  table      = state.datapop().rTableValue();
             RArray valueArray = new RArray(state.getSession().getUniqueID(),duplicates,false);
             for(IRObject key : keys){
                 if(table.containsKey(key)){
                    valueArray.add(table.getValue(key));
                 }
             }
             state.datapush(valueArray);
         }

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      Sortentities() {super("sortentities");}
      
      public void execute(DTState state) throws RulesException {
        boolean asc  = state.datapop().booleanValue();
        RName rname = state.datapop().rNameValue();
        RArray rarray  = state.datapop().rArrayValue();
        ArrayList<IRObject> array = rarray.arrayValue();
        if(state.testState(DTState.TRACE)){
                 state.traceInfo("sortentities", 
                         "length",   array.size()+"",
                         "by",       rname.stringValue(),
                         "arrayID",  rarray.getID()+"",
                         asc ? "true" : "false");
              }
        REntity temp = null;
        int size = array.size();
                int greaterthan = asc ? 1 : -1;

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    public static class Forall extends ROperator {
        Forall(){super("forall");}


        public void execute(DTState state) throws RulesException {
            
            RArray   array = state.datapop().rArrayValue();
            IRObject body = state.datapop();        // Get the body
            
            for(IRObject o : array){
                 int      t = o.type().getId();
                 if(t== iNull)continue;

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     */
    public static class For extends ROperator {
        For(){super("for");}


        public void execute(DTState state) throws RulesException {
            RArray   list = state.datapop().rArrayValue();
            IRObject body = state.datapop();        // Get the body
            for(IRObject o : list){
                 state.datapush(o);
                 body.execute(state);
            }

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     */
    public 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<IRObject>  ie    =  array.getIterator();
            while(ie.hasNext()){
                state.entitypush(ie.next().rEntityValue());
                test.execute(state);
                if(state.datapop().booleanValue()){
                    body.execute(state);

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              if(Verbose()){
                  datamap.print(new FileOutputStream(getOutputDirectory()+root+"_datamap.xml"));
                  
                  entityfile = new FileOutputStream(getOutputDirectory()+root+"_entities_before.xml");
                  RArray entitystack = new RArray(0,false,false);
                  for(int i=0; i< session.getState().edepth()-2; i++){
                      entitystack.add(session.getState().entityfetch(i));
                  }
                  session.printEntityReport(new XMLPrinter(entityfile), false, session.getState(), "entitystack", entitystack);
              }
              
              // Once the data is loaded, execute the rules.
              RulesException ex = null;
              try{
                  executeDecisionTables(session);
              }catch(RulesException e){
                  ex = e;
              }
              
              // Then if asked, dump the entities.
              if(Verbose()){
                  entityfile = new FileOutputStream(getOutputDirectory()+root+"_entities_after.xml");
                  RArray entitystack = new RArray(0,false,false);
                  for(int i=0; i< session.getState().edepth()-2; i++){
                      entitystack.add(session.getState().entityfetch(i));
                  }
                  session.printEntityReport(new XMLPrinter(entityfile), false, session.getState(), "entitystack", entitystack);
               }
              
              if(ex!=null)throw ex;

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    /**
     * By default, we will simply dump the entities as the report file.
     */
    public void printReport(int runNumber, IRSession session, PrintStream out)
            throws Exception {
        RArray entitystack = new RArray(0,false,false);
        for(int i=0; i< session.getState().edepth()-2; i++){
            entitystack.add(session.getState().entityfetch(i));
        }
        session.printEntityReport(new XMLPrinter(out), false, session.getState(), "entitystack", entitystack);
    }

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com.dtrules.automapping.access.DTRulesTarget

com.dtrules.decisiontables.RDecisionTable

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com.dtrules.interpreter.operators.RArrayOps$AddArray

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com.dtrules.interpreter.operators.RArrayOps$Addto

com.dtrules.interpreter.operators.RArrayOps$Arraytomark

com.dtrules.interpreter.operators.RArrayOps$Copyelements

com.dtrules.interpreter.operators.RArrayOps$DeepCopy

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