envList.h

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/*****************************************************************************
** Copyright (c) 1992-2010 VT MAK
** All rights reserved.
******************************************************************************/



#ifndef envList_H__
#define envList_H__

#if DT_ENV_THREAD_SAFE
#include <vlutil/vlMutex.h>
#endif

#include "envValue.h"
#include <list>

#ifdef DtUSE_UTILITIES_NAMESPACE
namespace DtUSE_UTILITIES_NAMESPACE
{
#endif



class DT_DLL_MTL DtEnvList : public DtEnvValue
{
public:
   friend class DtEnvironment;   

   virtual DtEnvValueSP first() const;

   virtual DtEnvValueSP last()  const;

   virtual DtEnvValueSP next(DtEnvValueSP) const;

   static bool isList(const DtEnvValueSP&);

   static DtEnvList* castToList(const DtEnvValueSP& value);

protected:   

   explicit DtEnvList(const DtString& value);

   virtual DtEnvValue* clone() const;

   virtual void cloneChildren(DtEnvList* list) const;

   virtual void append(DtEnvValueSP);

   virtual void remove(DtEnvValueSP);

   DtEnvValueList myValues;
   
#if DT_ENV_THREAD_SAFE

   mutable DtMutex myChildrenMutex;
#endif
};

#ifdef DtUSE_UTILITIES_NAMESPACE
}
#endif


#endif