Check Incoming data is null

[AdityaReja]

I’m getting data out of LDAP and i nees to route it to two different mappers depending upon whether the incoming data is null or not. But i’m unable to do this… any solution?

[robin]

Have you tried the Router Snap?

[AdityaReja]

what condition to give i router snap ?

[stephenknilans]

x==null (do if x is null)
x!=null (do if x is NOT null)

BTW there are TWO types of null in snaplogic.

1. The above, where the field exists and LITERALLY has a value of null
2. The all too common case of a field that hasn’t be defined because no row joined on an outer condition, or it wasn’t read, etc…

What I spoke of earlier is for the 2nd case I listed above
For case number 2, it would be

!(‘x’ in $)
(‘x’ in $)

So remember, in some cases a field will not be created for a field that does not have a value and, in those cases, you have to check if the field exists.

[AdityaReja]

i need to check for entire input stream not for one particular variable in $, like if the $ is null or not