NULLABLE Directive

isCOBOL Evolve : Language Reference : ELK Directives : NULLABLE Directive

NULLABLE Directive

The NULLABLE directive mars the field as nullable. Whenever the value of the field is empty, the field will be filled with the word 'null' before being returned in a JSON stream.

$ELK NULLABLE

*(( ELK NULLABLE ))

*>(( ELK NULLABLE ))

Example

In the resulting Web Service, the field p3 will be set to 'null' whenever the p3 data item is spaces:.

Linkage Section.

$ELK INPUT

01 p1 pic x(10).

01 p2 pic x(10).

$ELK OUTPUT NULLABLE

01 p3 pic x(10).