table_trigger_field_support.h

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/*
   Copyright (c) 2013, 2024, Oracle and/or its affiliates.
 
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   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.
 
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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#ifndef TABLE_TRIGGER_FIELD_SUPPORT_H_INCLUDED
#define TABLE_TRIGGER_FIELD_SUPPORT_H_INCLUDED
 
///////////////////////////////////////////////////////////////////////////
 
#include "sql/trigger_def.h"  // enum_trigger_variable_type
 
///////////////////////////////////////////////////////////////////////////
 
struct TABLE;
class Field;
 
///////////////////////////////////////////////////////////////////////////
 
/**
  This is an interface to be used from Item_trigger_field to access information
  about table trigger fields (NEW/OLD rows).
*/
 
class Table_trigger_field_support {
 public:
  virtual TABLE *get_subject_table() = 0;
 
  virtual Field *get_trigger_variable_field(enum_trigger_variable_type v,
                                            int field_index) = 0;
 
  virtual ~Table_trigger_field_support() = default;
};
 
///////////////////////////////////////////////////////////////////////////
 
#endif  // TABLE_TRIGGER_FIELD_SUPPORT_H_INCLUDED