entity_object.h

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#ifndef DD__ENTITY_OBJECT_INCLUDED
#define DD__ENTITY_OBJECT_INCLUDED
 
#include "sql/dd/object_id.h"          // dd::Object_id
#include "sql/dd/string_type.h"        // dd::String_type
#include "sql/dd/types/weak_object.h"  // dd::Weak_object
 
namespace dd {
namespace cache {
class Storage_adapter;
}
 
///////////////////////////////////////////////////////////////////////////
 
/**
  Base class for dictionary objects which has single column
  integer primary key.
 
  @note This class may be inherited along different paths
        for some subclasses due to the diamond shaped
        inheritance hierarchy; thus, direct subclasses
        must inherit this class virtually.
*/
 
class Entity_object : virtual public Weak_object {
 public:
  /// The unique dictionary object id.
  virtual Object_id id() const = 0;
 
  /// Is dictionary object persistent in dictionary tables ?
  virtual bool is_persistent() const = 0;
 
  virtual const String_type &name() const = 0;
  virtual void set_name(const String_type &name) = 0;
 
 private:
  virtual class Entity_object_impl *impl() = 0;
  virtual const class Entity_object_impl *impl() const = 0;
  friend class cache::Storage_adapter;
  friend class Entity_object_table_impl;
};
 
///////////////////////////////////////////////////////////////////////////
 
}  // namespace dd
 
#endif  // DD__ENTITY_OBJECT_INCLUDED