Official | HULFT IoT EdgeStreaming Mapper Reference First Edition: July 1, 2021
Check null
Logic name
Check null
Function
This logic determines whether the input value is null.
Data type
|
Location |
Type |
|---|---|
|
First input handler |
Data (including null) |
|
Logic output |
Boolean |
Property
|
Category |
Property |
Description |
|---|---|---|
|
Comment |
Comment |
It does not affect the conversion processing. |
Example of logic use
Mapping definition
Logic settings and processing result
This logic returns "true" if the value is a null value. If it is not, it returns "false".
Property settings
|
Property |
Setting Value |
|---|---|
|
None |
Input data
|
a |
|
(Null) |
|
(Space) |
Output data
|
false |
|
true |
|
false |
Official | HULFT IoT EdgeStreaming Mapper Reference First Edition: July 1, 2021