whenStmt.h

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/*********************************************************************
** Copyright (c) 1999 MaK Technologies, Inc.
** All rights reserved.
*********************************************************************/
/*********************************************************************
** $RCSfile: whenStmt.h,v $ $Revision: 1.19 $ $State: Exp $
*********************************************************************/


#ifndef DtWhenStmt_H_
#define DtWhenStmt_H_

class DtWhenStmt;

#include "vrfutil/rwString.h"
#include "vrfutil/simCondExpr.h"
#include "vrfplan/rwCondExpr.h"
#include "vrfplan/simStatement.h"
#include <vlutil/vlNetTypes.h>

const char DtWhenStmtTypeName[] = "When";

class DtRwCondExpr;
class DtWhenBlock;




struct DtNetWhenStatement
{
   DtNetU16 myCondExprSize;            
   DtNetU8  myStatementCount;          
   DtNetU8  myCondExprType;            
   DtNetU8  myTriggerNameLength;       
   DtNetU8  myOptionLength;            
   DtNetU16 myPadding;                 
};                                     

#include "vrfplan/vrfplanDefines.h"
class DT_DLL_vrfplan DtWhenStmt : public DtSimStatement
{
public:

   DtWhenStmt(DtReaderWriterRegistry* parentRegistry = NULL);

   DtWhenStmt(const DtWhenStmt& orig,
      DtReaderWriterRegistry* parentRegistry = NULL);

   virtual ~DtWhenStmt();

   DtWhenStmt& operator=(const DtWhenStmt& orig);


   virtual DtSimStatement* clone(
      DtReaderWriterRegistry* parentRegistry = NULL) const;

   virtual int type() const;

   virtual void execute(DtPlan& planContext);

   virtual int subBlockCount() const;
   virtual DtSimBlock* subBlock(int index);

   virtual DtString stringRep(int subBlockIndex = DtSR_STMT) const;

   virtual void exitFromTrigger(DtPlan& planContext);

   virtual const DtString& triggerName() const;
   virtual void setTriggerName(const DtString& arg);

   virtual const DtSimCondExpr* condExpr() const;
   virtual void setCondExpr(DtSimCondExpr* arg);

   virtual const DtString& option() const;
   virtual void setOption(const DtString& arg);

   virtual DtWhenBlock* whenBlock() const;
   virtual void setWhenBlock(DtWhenBlock* arg);

   virtual int netRepSize() const;

   virtual bool setFromNet(const char* contentBuffer, 
      unsigned contentSize);

   virtual bool setToNet();

public:

   static DtSimStatement * creator(DtReaderWriterRegistry* parentRegistry = NULL);

protected:

   virtual bool compare(DtSimStatement*);

protected:

   DtRwString myTriggerName;
   DtRwCondExpr myCondExpr;
   DtRwString myOption;
   DtWhenBlock* myBlock;
};

#endif