#ifndef __CPPLUGINS__INTERFACE__PROCESSOBJECTPORT__H__
#define __CPPLUGINS__INTERFACE__PROCESSOBJECTPORT__H__

#include <cpPlugins/Interface/DataObject.h>

namespace cpPlugins
{
  namespace Interface
  {
    /**
     */
    class cpPlugins_Interface_EXPORT ProcessObjectPort
    {
    public:
      typedef ProcessObjectPort Self;

    public:
      ProcessObjectPort( );
      virtual ~ProcessObjectPort( );
      Self& operator=( DataObject* obj );
      Self& operator=( const Self& other );

      bool IsValid( ) const;

      // This could be seen as a pointer to DataObject's
      inline DataObject* GetPointer( )
      { return( this->m_Data.GetPointer( ) ); }
      inline const DataObject* GetPointer( ) const
      { return( this->m_Data.GetPointer( ) ); }
      inline DataObject* operator->( ) const
      { return( this->m_Data.GetPointer( ) ); }

    protected:
      cpPlugins::Interface::DataObject::Pointer m_Data;
    };

    /**
     */
    class cpPlugins_Interface_EXPORT InputProcessObjectPort
      : public ProcessObjectPort
    {
    public:
      typedef InputProcessObjectPort Self;
      typedef ProcessObjectPort      Superclass;

    public:
      InputProcessObjectPort( bool required = false );
      virtual ~InputProcessObjectPort( );
      Self& operator=( DataObject* obj );
      Self& operator=( const Superclass& other );

      bool IsRequired( ) const;
      void RequiredOn( );
      void RequiredOff( );
      void SetRequired( bool required );

    protected:
      bool m_Required;
    };

    /**
     */
    class cpPlugins_Interface_EXPORT OutputProcessObjectPort
      : public ProcessObjectPort
    {
    public:
      typedef OutputProcessObjectPort Self;
      typedef ProcessObjectPort       Superclass;

    public:
      OutputProcessObjectPort( );
      virtual ~OutputProcessObjectPort( );
      Self& operator=( DataObject* obj );
      Self& operator=( const Superclass& other );
    };

  } // ecapseman

} // ecapseman

#endif // __CPPLUGINS__INTERFACE__PROCESSOBJECTPORT__H__

// eof - $RCSfile$