foreign_key_element_impl.h

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/* Copyright (c) 2014, 2023, Oracle and/or its affiliates.
 
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   it under the terms of the GNU General Public License, version 2.0,
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   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
 
#ifndef DD__FOREIGN_KEY_ELEMENT_IMPL_INCLUDED
#define DD__FOREIGN_KEY_ELEMENT_IMPL_INCLUDED
 
#include <stddef.h>
#include <sys/types.h>
#include <new>
 
#include "sql/dd/impl/types/weak_object_impl.h"  // dd::Weak_object_impl
#include "sql/dd/sdi_fwd.h"
#include "sql/dd/string_type.h"
#include "sql/dd/types/foreign_key_element.h"  // dd::Foreign_key_element
 
namespace dd {
 
///////////////////////////////////////////////////////////////////////////
 
class Column;
class Foreign_key;
class Foreign_key_impl;
class Object_key;
class Object_table;
class Open_dictionary_tables_ctx;
class Raw_record;
class Sdi_rcontext;
class Sdi_wcontext;
class Weak_object;
 
///////////////////////////////////////////////////////////////////////////
 
class Foreign_key_element_impl : public Weak_object_impl,
                                 public Foreign_key_element {
 public:
  Foreign_key_element_impl()
      : m_foreign_key(nullptr), m_column(nullptr), m_ordinal_position(0) {}
 
  Foreign_key_element_impl(Foreign_key_impl *foreign_key)
      : m_foreign_key(foreign_key), m_column(nullptr), m_ordinal_position(0) {}
 
  Foreign_key_element_impl(const Foreign_key_element_impl &src,
                           Foreign_key_impl *parent, Column *column);
 
  ~Foreign_key_element_impl() override = default;
 
 public:
  const Object_table &object_table() const override;
 
  static void register_tables(Open_dictionary_tables_ctx *otx);
 
  bool validate() const override;
 
  bool restore_attributes(const Raw_record &r) override;
 
  bool store_attributes(Raw_record *r) override;
 
  void serialize(Sdi_wcontext *wctx, Sdi_writer *w) const override;
 
  bool deserialize(Sdi_rcontext *rctx, const RJ_Value &val) override;
 
  void debug_print(String_type &outb) const override;
 
  void set_ordinal_position(uint ordinal_position) {
    m_ordinal_position = ordinal_position;
  }
 
 public:
  /////////////////////////////////////////////////////////////////////////
  // Foreign key.
  /////////////////////////////////////////////////////////////////////////
 
  const Foreign_key &foreign_key() const override;
 
  Foreign_key &foreign_key() override;
 
  /////////////////////////////////////////////////////////////////////////
  // column.
  /////////////////////////////////////////////////////////////////////////
 
  const Column &column() const override { return *m_column; }
 
  void set_column(const Column *column) override { m_column = column; }
 
  /////////////////////////////////////////////////////////////////////////
  // ordinal_position.
  /////////////////////////////////////////////////////////////////////////
 
  uint ordinal_position() const override { return m_ordinal_position; }
 
  void set_ordinal_position(int ordinal_position) override {
    m_ordinal_position = ordinal_position;
  }
 
  /////////////////////////////////////////////////////////////////////////
  // referenced column name.
  /////////////////////////////////////////////////////////////////////////
 
  const String_type &referenced_column_name() const override {
    return m_referenced_column_name;
  }
 
  void referenced_column_name(const String_type &name) override {
    m_referenced_column_name = name;
  }
 
 public:
  static Foreign_key_element_impl *restore_item(Foreign_key_impl *fk) {
    return new (std::nothrow) Foreign_key_element_impl(fk);
  }
 
  static Foreign_key_element_impl *clone(const Foreign_key_element_impl &other,
                                         Foreign_key_impl *fk);
 
 public:
  Object_key *create_primary_key() const override;
  bool has_new_primary_key() const override;
 
 private:
  Foreign_key_impl *m_foreign_key;
  const Column *m_column;
  uint m_ordinal_position;
  String_type m_referenced_column_name;
};
 
///////////////////////////////////////////////////////////////////////////
 
}  // namespace dd
 
#endif  // DD__FOREIGN_KEY_ELEMENT_IMPL_INCLUDED