Trigger buffer sections

 

The trigger buffer has two logical sections: a static section and a variable section. The static section occupies (in decimal) offset 0 through 95. It contains the following items:

• A trigger template that contains the physical file name, member name, trigger event, trigger time, commit lock level, and CCSID of the current record and relative record number.

• Offsets and lengths of the record areas and null byte maps.

The variable section contains areas for old record, old null byte map, new record, and new null byte map.

The following table provides a summary of the fields in the trigger buffer.

Offset		Type	Field
Dec	Hex
0	0	CHAR(10)	Physical file name
10	A	CHAR(10)	Physical file library name
20	14	CHAR(10)	Physical file member name
30	1E	CHAR(1)	Trigger event
31	1F	CHAR(1)	Trigger time
32	20	CHAR(1)	Commit lock level
33	21	CHAR(3)	Reserved
36	24	BINARY(4)	CCSID of data
40	28	BIN(4)	Relative Record Number
44	2C	CHAR(4)	Reserved
48	30	BINARY(4)	Original record offset
52	34	BINARY(4)	Original record length
56	38	BINARY(4)	Original record null byte map offset
60	3C	BINARY(4)	Original record null byte map length
64	40	BINARY(4)	New record offset
68	44	BINARY(4)	New record length
72	48	BINARY(4)	New record null byte map offset
76	4C	BINARY(4)	New record null byte map length
80	50	CHAR(*)	Reserved
*	*	CHAR(*)	Original record
*	*	CHAR(*)	Original record null byte map
*	*	CHAR(*)	New record
*	*	CHAR(*)	New record null byte map

• Trigger buffer field descriptions
  Fields in the buffer field are described in alphabetic order.

 

Parent topic:

Creating trigger programs