Examples of com.dtrules.interpreter.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

           }
           if(type==null || defined==false){
               RName rname = RName.getRName(
                  (entity==null||entity.length()==0?"":entity+".")+ident);
               try {
                  IRObject o = session.getState().find(rname);
                  if(o==null)return -1;
                  return o.type();
                } catch (RulesException e) {
                  return -1;
                }
           }

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      */
     public static class GetWithKey extends ROperator {
         GetWithKey(){ super("getwithkey");}
         
         public void execute(DTState state) throws RulesException {
             IRObject key = state.datapop();
             RTable rtable = state.datapop().rTableValue();
             state.datapush(rtable.getValue(key));
         }

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    private void dump(IREntity e,int depth){
        Iterator<RName> anames = e.getAttributeIterator();
        while(anames.hasNext()){
            try {
                RName        aname = anames.next();
                IRObject     value = e.get(aname);
                
                dtstate.traceTagBegin("attribute", "name",aname.stringValue(),"type",getType(e,aname));
                int type = e.getEntry(aname).type.getId();
                
               if(type == IRObject.iEntity) {
                      if(value.type().getId() == IRObject.iNull){
                          dtstate.traceInfo("value","type","null","value","null",null);
                      }else{
                        dtstate.traceTagBegin("entity", 
                                "name",   ((REntity)value).getName().stringValue(),
                                "id",     printIds ? ((REntity)value).getID()+"" : "");
                        
                        if(!(boundries.get(e)!= null && boundries.get(e).contains(value))){
                            dtstate.debug(" recurse\n");
                        }else{
                            if(boundries.get(e)==null)boundries.put(e, new ArrayList<IREntity>());
                            boundries.get(e).add(value.rEntityValue());
                            dump((IREntity)value, depth+1);
                        }
                        dtstate.traceTagEnd();
                      }
               }else if (type == IRObject.iArray) {
                      ArrayList<IRObject> values = value.arrayValue();
                      for(IRObject v : values){
                          if(v.type().getId() ==IRObject.iEntity){
                              dump((REntity)v,depth+2);
                          }else{
                              dtstate.traceInfo("value","v",v.stringValue(),null);
                          }
                      }
               } else { 
                       dtstate.traceInfo("value","v",value.stringValue(),null);
               }
                
                dtstate.traceTagEnd();
            } catch (RulesException e1) {
                dtstate.debug("Rules Engine Exception\n");

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    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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     public static class SetWithKey extends ROperator {
         SetWithKey(){ super("setwithkey"); }
      
         public void execute(DTState state) throws RulesException {
             
             IRObject   v      = state.datapop();                // Get the value to store
             IRObject   key    = state.datapop().rNameValue();
             RTable     rtable = state.datapop().rTableValue();
             rtable.setValue(key,v);
             
         }

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   */
  
  
   public void printEntity(IXMLPrinter rpt, String tag, IREntity e) throws Exception {
       if(tag==null)tag = e.getName().stringValue();
       IRObject id = e.get(RName.getRName("mapping*key"));
       String   idString = id!=null?id.stringValue():"--none--";
         rpt.opentag(tag,"DTRulesId",e.getID()+"","id",printIds ? idString : "");
         Set<RName> names = e.getAttributeSet();
         RName keys[] = sort(names);
         for(RName name : keys){
             IRObject v    = e.get(name);
             if(v.type().getId()==IRObject.iArray && v.rArrayValue().size()==0) continue;
             String   vstr = v==null?"":v.stringValue();
             rpt.printdata("attribute","name",name.stringValue(), vstr);
         }
   }

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     public static class SetWithKeys extends ROperator {
         SetWithKeys(){ super("setwithkeys");}
         
         public void execute(DTState state) throws RulesException {
             int       cnt = 0;                             // We keep a count of the keys.
             IRObject  v   = state.datapop();               // Get the value to store
             int       d   = state.ddepth()-1;              // Get current depth of data stack less one for the value.
             
             while(state.getds(--d).type().getId()==iTable)cnt++;   // Count the keys (index1, index2, etc.)
             
             if(cnt != 1){
                 IRObject []keys = new IRObject[cnt];           // Get an array big enough to hold the keys
                 
                 for(int i=0;i<cnt;i++){                        // Get all the keys off the data stack
                    keys[i]= state.datapop();
                 }
                 
                 RTable rtable = state.datapop().rTableValue();
                 
                 rtable.setValue(state,keys, v);                // Set the value.
             }else{
                 IRObject   key    = state.datapop();
                 RTable     rtable = state.datapop().rTableValue();
                 rtable.setValue(key,v);
             }

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             RTable table)throws RulesException{
         
         Set<IRObject> keys = table.getTable().keySet();
           rpt.opentag("map", "id", printIds ? table.getId(): "");
               for(IRObject key : keys){
                  IRObject value = table.getValue(key);
                  rpt.opentag("pair");
                      rpt.opentag("key");
                          printIRObject(rpt,entitypath,printed,state,"",key);
                      rpt.closetag();
                      rpt.opentag("value");

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         printEntityReport(rpt,false, false,state,objname);
     }
 
     public void printEntityReport(IXMLPrinter rpt, boolean printIds, boolean verbose, DTState state, String name ) {
         this.printIds = printIds;
       IRObject obj = state.find(name);
         printEntityReport(rpt,printIds, verbose,state,name,obj);
     }

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         }else if (printed!= null && printed.contains(e)){
                 rpt.printdata(entityName,"DTRulesId",printIds ? e.getID():"","id",e.get("mapping*key").stringValue(),"multiple reference");  
         }else{
             entitypath.add(e);
             if(printed!=null) printed.add(e);
             IRObject id = e.get(RName.getRName("mapping*key"));
             String   idString = id!=null?id.stringValue():"--none--";
             rpt.opentag(entityName,"DTRulesId",printIds ? e.getID():"","id",idString);
             Set<RName> keys = e.getAttributeSet();
             RName akeys [] = sort(keys);
             for(RName name : akeys){
                 IRObject v    = e.get(name);
                 printIRObject(rpt, entitypath, printed, state, name.stringValue(), v);
             }
             rpt.closetag();
             entitypath.remove(entitypath.size()-1);
         }

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