DbObjectIterator.h

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// Copyright (C) 2002-2017, Open Design Alliance (the "Alliance"). 
// All rights reserved. 
// 
// This software and its documentation and related materials are owned by 
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// with their copyright notices:
//   
//   This application incorporates Teigha(R) software pursuant to a license 
//   agreement with Open Design Alliance.
//   Teigha(R) Copyright (C) 2002-2017 by Open Design Alliance. 
//   All rights reserved.
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#ifndef _ODDBOBJECTITERATOR_INCLUDED_
#define _ODDBOBJECTITERATOR_INCLUDED_
 
#include "RxObject.h"
#include "DbObjectId.h"
 
class OdDbEntity;
typedef OdSmartPtr<OdDbEntity> OdDbEntityPtr;
 
class TOOLKIT_EXPORT OdDbObjectIterator : public OdRxObject
{
public:
  ODRX_DECLARE_MEMBERS(OdDbObjectIterator);
 
  OdDbObjectIterator() {}
 
    virtual void start(
    bool atBeginning = true, 
    bool skipErased = true) = 0;
 
    virtual bool done() const = 0;
 
  virtual OdDbObjectId objectId() const = 0;
 
  virtual OdDbEntityPtr entity(
    OdDb::OpenMode openMode = OdDb::kForRead, 
    bool openErasedEntity = false) = 0;
 
  virtual void step(
    bool forward = true, 
    bool skipErased = true) = 0;
 
    virtual bool seek(
    OdDbObjectId objectId) = 0;
    
  virtual bool seek(
    const OdDbEntity* pEntity) = 0;
};
 
typedef OdSmartPtr<OdDbObjectIterator> OdDbObjectIteratorPtr;
 
#endif //_ODDBOBJECTITERATOR_INCLUDED_