object_table_definition.h

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#ifndef DD__OBJECT_TABLE_DEFINITION_INCLUDED
#define DD__OBJECT_TABLE_DEFINITION_INCLUDED
 
#include <vector>
 
#include "my_inttypes.h"
#include "sql/dd/string_type.h"  // dd::String_type
 
namespace dd {
 
///////////////////////////////////////////////////////////////////////////
 
class Properties;
class Table;
 
///////////////////////////////////////////////////////////////////////////
 
/**
  The purpose of this interface is to enable retrieving the SQL statements
  necessary to create and populate a DD table. An Object_table instance
  may use one or more instances implementing this interface to keep track
  of the table definitions corresponding to the supported DD versions.
*/
 
class Object_table_definition {
 public:
  virtual ~Object_table_definition() = default;
 
  /**
    Set the name of the table.
 
    @param name    Table name.
  */
  virtual void set_table_name(const String_type &name) = 0;
 
  /**
    Add a field to the object table definition.
 
    @param field_number      Positional index of the field.
    @param field_name        Label which can be used to refer to the field.
    @param field_definition  Complete field definition with name, type etc.
  */
  virtual void add_field(int field_number, const String_type &field_name,
                         const String_type field_definition) = 0;
 
  /**
    Add an index to the object table definition.
 
    @param index_number      Positional index (sic!) of the index.
    @param index_name        Label which can be used to refer to the index.
    @param index_definition  Complete index definition.
  */
  virtual void add_index(int index_number, const String_type &index_name,
                         const String_type &index_definition) = 0;
 
  /**
    Get the SQL DDL statement for creating the dictionary table.
 
    @return String containing the SQL DDL statement for the target table.
  */
  virtual String_type get_ddl() const = 0;
 
  /**
    Get the SQL DML statements for populating the table.
 
    @return Vector of strings containing SQL DML statements
  */
  virtual const std::vector<String_type> &get_dml() const = 0;
 
  /**
    Store the elements of the object table definition into a property
    object.
 
    @param [out] table_def_properties  Properties object containing the
                                       definition.
  */
  virtual void store_into_properties(
      Properties *table_def_properties) const = 0;
 
  /**
    Restore the elements of the object table definition from a property
    object.
 
    @param table_def_properties  Properties object containing the
                                 definition.
    @return Operation outcome, false if no error.
  */
  virtual bool restore_from_properties(
      const Properties &table_def_properties) = 0;
};
 
///////////////////////////////////////////////////////////////////////////
 
}  // namespace dd
 
#endif  // DD__OBJECT_TABLE_DEFINITION_INCLUDED