Service Group Definition and Customization Guide

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Service Function Definition Structure and Format

Functions defined at the Service Group level must be added immediately after the

SCHEME-DEFINITIONS=

option, or

PASSING-WORKAREA-SIZE

option if that is being used, for example,

...
SCHEME-DEFINITIONS=N3MAUS
PASSING-WORKAREA-SIZE
*
FUNCTION-DEFINITIONS
...

The format of the Service Function Definitions is as follows (note the alternate spelling for this directive):

FUNCTION-DEFINITIONS
FUNCTIONS-DEFINITION
[name]:[keyword],...[keyword]
[name]:[keyword],...[keyword]

where,

[name]

is the function name, any combination of up to 32 valid characters and

[keyword],...

is any number of comma-separated keywords, as defined in the next chapter, up to a total of 1022 characters. As many functions as required can be defined in the one

FUNCTIONS-DEFINITION

block. For example:

FUNCTIONS-DEFINITION
CUST_LOOKUP:NWORD,SECONDARY,COARSE,STOP=WI
CUST_INSERT:NEG,START=WW
CUST_FRAUD:NEG,START=WI,PROBESWORD
SCORE:SCORE-ONLY

A function definition can also span several lines. This allows long descriptions to be defined without exceeding the 80 or 72 character limit common on many systems. The above definition for

CUST_LOOKUP

could be written as follows:


CUST_LOOKUP:NWORD,

SECONDARY,
COARSE,
TOP=WI

The commas that usually separate options must remain at the end of each continuing line, the first line without this comma at the end will terminate the definition.

Keyword Types

There are two types of Function definition keywords:

Keywords	Description
FLAG	These are used to select an option, for example, NEG enables the NAMESET code that allows full word ranges. A flag can also be used to turn off an option, -NEG will disable the option. The following keywords cannot be turned off in this manner: FINE, WORDS, COARSE, PROTECTED, FILESIZE=, BASE=, START=, STOP= FINE , WORDS and COARSE override each other, and therefore one can be used to turn off the other.
VALUE	Some options are not simple on/off switches, they require a value. Value keywords perform this function, the syntax is as follows: [keyword]=[value] for example, START=WW specifies that a NAMESET Search-table should start at the two-word level.

Keywords

Description

FLAG

These are used to select an option, for example,

NEG

enables the NAMESET code that allows full word ranges. A flag can also be used to turn off an option,

-NEG

will disable the option.

The following keywords cannot be turned off in this manner:

FINE, WORDS, COARSE, PROTECTED, FILESIZE=,
BASE=, START=, STOP=

FINE

WORDS

and

COARSE

override each other, and therefore one can be used to turn off the other.

VALUE

Some options are not simple on/off switches, they require a value. Value keywords perform this function, the syntax is as follows:

[keyword]=[value]

for example,

START=WW

specifies that a NAMESET Search-table should start at the two-word level.

Keyword Precedence Issues

Keywords are processed in order of appearance (left to right) in the function, this means that an option can be overridden by another further to the right. For example a description similar to the following,

.....NOSTAB,......-NOSTAB

will have no net result. This is not a problem in a simple description but can become one when the

BASE=

keyword is used, for example:

BASE=AFUNC,NOSTAB

is a valid construct that reads the description for

AFUNC

then applies the

NOSTAB

option to stop the generation of a Search-table. However, the description,

NOSTAB,BASE=AFUNC

may or may not have the desired affect depending on the options specified in the description for

AFUNC

. If, for example,

AFUNC

was defined as,

NEG,START=WI,-NOSTAB

the

-NOSTAB

option would overwrite the previous

NOSTAB

and there would be no obvious reason for the resultant "invalid" behavior of the Service.

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Table of Contents

Service Group Definition and Customization Guide

Service Group Definition and Customization Guide

Service Function Definition Structure and Format

Service Function Definition Structure and Format

Keyword Types

Keyword Precedence Issues