MySQL  8.0.27
Source Code Documentation
table_trigger_field_support.h
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23 
24 #ifndef TABLE_TRIGGER_FIELD_SUPPORT_H_INCLUDED
25 #define TABLE_TRIGGER_FIELD_SUPPORT_H_INCLUDED
26 
27 ///////////////////////////////////////////////////////////////////////////
28 
29 #include "sql/trigger_def.h" // enum_trigger_variable_type
30 
31 ///////////////////////////////////////////////////////////////////////////
32 
33 struct TABLE;
34 class Field;
35 
36 ///////////////////////////////////////////////////////////////////////////
37 
38 /**
39  This is an interface to be used from Item_trigger_field to access information
40  about table trigger fields (NEW/OLD rows).
41 */
42 
44  public:
45  virtual TABLE *get_subject_table() = 0;
46 
48  int field_index) = 0;
49 
50  virtual ~Table_trigger_field_support() = default;
51 };
52 
53 ///////////////////////////////////////////////////////////////////////////
54 
55 #endif // TABLE_TRIGGER_FIELD_SUPPORT_H_INCLUDED
Definition: field.h:590
This is an interface to be used from Item_trigger_field to access information about table trigger fie...
Definition: table_trigger_field_support.h:43
virtual Field * get_trigger_variable_field(enum_trigger_variable_type v, int field_index)=0
virtual TABLE * get_subject_table()=0
virtual ~Table_trigger_field_support()=default
Definition: table.h:1394
This file defines all base public constants related to triggers in MySQL.
enum_trigger_variable_type
Enum constants to designate NEW and OLD trigger pseudo-variables.
Definition: trigger_def.h:72