LiteralEnvelope.h

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/*  Copyright (C) 2008 National Institute For Space Research (INPE) - Brazil.
 
    This file is part of the TerraLib - a Framework for building GIS enabled applications.
 
    TerraLib is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License,
    or (at your option) any later version.
 
    TerraLib is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
    along with TerraLib. See COPYING. If not, write to
    TerraLib Team at <terralib-team@terralib.org>.
 */
 
/*!
  \file terralib/dataaccess/query/LiteralEnvelope.h
 
  \brief A class that models a literal for Envelope values.
*/
 
#ifndef __TERRALIB_DATAACCESS_INTERNAL_LITERALENVELOPE_H
#define __TERRALIB_DATAACCESS_INTERNAL_LITERALENVELOPE_H
 
// TerraLib
#include "Expression.h"
#include "../../geometry/Envelope.h"
 
// STL
#include <memory>
 
namespace te
{
  namespace da
  {
    /*!
      \class LiteralEnvelope
      
      \brief A class that models a literal for Envelope values.
 
      \sa Expression
 
      \note This class doesn't derive from Literal! In future we will do something to adjust this point!
    */
    class TEDATAACCESSEXPORT LiteralEnvelope : public Expression
    {
      public:
 
        TE_DEFINE_VISITABLE
 
        /*!
          \brief Constructor.
 
          \param e    The envelope value.
          \param srid The envelope SRS.
 
          \note The LiteralEnvelope will take the ownership of the given envelope.
        */
        LiteralEnvelope(te::gm::Envelope* e, int srid);
 
        /*!
          \brief Constructor.
 
          \param e    The envelope value.
          \param srid The envelope SRS.
        */
        LiteralEnvelope(const te::gm::Envelope& e, int srid);
 
        /*! \brief Copy constructor. */
        LiteralEnvelope(const LiteralEnvelope& rhs);
 
        /*! \brief Destructor. */
        ~LiteralEnvelope();
 
        /*! Assignment operator.  */
        LiteralEnvelope& operator=(const LiteralEnvelope& rhs);
 
        /*! \brief It creates a new copy of this expression. */
        Expression* clone() const;
 
        /*!
          \brief It returns the associated envelope value.
 
          \return The associated envelope value.
        */
        te::gm::Envelope* getValue() const;
 
        /*!
          \brief It sets the envelope value associated to the Literal.
 
          \param e The envelope value.
 
          \note The LiteralEnvelope will take the ownership of the given envelope.
        */
        void setValue(te::gm::Envelope* e);
 
        /*!
          \brief It returns the envelope SRS id.
 
          \return The envelope SRS id.
        */
        int getSRID() const { return m_srid; }
 
        /*!
          \brief It sets the envelope SRS id.
 
          \param srid The envelope SRS id.
        */
        void setSRID(int srid) { m_srid = srid; }
 
      private:
 
        std::unique_ptr<te::gm::Envelope> m_eval;   //!< The envelope value.
        int m_srid;                               //!< The envelope SRS ID.
    };
 
  } // end namespace da
}   // end namespace te
 
#endif  // __TERRALIB_DATAACCESS_INTERNAL_LITERALENVELOPE_H