IBM AS/400 manual Example of Specifying Fetch Overflow, Accessing Printer Devices

Accessing Printer Devices

at	overflow output	time	unless	overflow is sensed again since t
time	the overflow	lines	were	written.

Specifying

Fetch Overflow

Specify fetch overflow with an F in position

18

of the

output

specifi

detail,

total,

or

exception lines for

a

PRINTER file. The

fetch

overflo

not automatically cause forms to advance

to

the

next

page.

During

output,

the

conditioning

indicators

on

an

output

line

are

tested

if the

line

is to be written. If

the

line

is

to

be

written

and

an

18, the compiler tests to determine if

the overflow indicator is on.

indicator

is

on, the overflow

routine

is

fetched

and

the following

ope

1.Only the overflow lines for the file with the fetch specified ar output.

2.	All	total lines conditioned by	the	overflow		indicator		are written.
3.	Forms advance to a new page		when	a	skip	to a	line	number	less tha
number the printer is currently			on	is	specified		in	a line	conditione
flow		indicator.

4.Heading, detail, and exception lines conditioned by the overflow in written.

5. The line that fetched the overflow routine is written.

6. Any detail and total lines left to be written for that program cyc

Position 18		of each			OR	line	must contain an F if the overflow routine
for	each	record		in	the	OR	relationship. Fetch		overflow cannot be use
flow	indicator		is	specified			in positions 21	through 29 of the same s
If	this	is	the	case,		the	overflow routine	is	not fetched.

Example of Specifying Fetch Overflow

Figure 160 shows the use of fetch overflow.

*..

1

...

+...

2

......+

...3

+...

4 ...

+

... 5

......+

...6

+...

...7

...+

*

OFilename++DF..N01N02N03Excnam++++B++A++Sb+Sa+

.............................

OPRINTER

H

OA

3

05

O

N01N02N03Field+++++++++YB.End++PConstant/editword/DTforma￿t++

O

15

'EMPLOYEE TOTAL'

O

TF

L1

1

O

EMPLTOT

25

O

T

L1

1

O

EMPLTOT

35

O

T

L1

1

O

EMPLTOT

45

O

TF

L1

1

O

EMPLTOT

55

O

T

L1

1

O

EMPLTOT

65

O

T

L1

1

O

EMPLTOT

75

O

T

L1

1

O*

Figure

160.

Use of Fetch Overflow

322 ILE RPG for AS/400 Programmer's Guide