Logical Existence Functoid

 

Use the Logical Existence functoid ( ) to determine whether the Record, Field Element, or Field Attribute node that is linked to it exists in a particular input instance message.

Input

Parameter 1: A link from a Record, Field Element, or Field Attribute node in the source schema that may or may not exist in a particular input instance message.

Output

Output 1: The Boolean value True if the element or attribute that corresponds to the Record, Field Element, or Field Attribute node that is linked to this functoid exists in a particular input instance message; the Boolean value False otherwise.

Remarks

The node in the source schema to which this functoid is linked must be a node that corresponds to an actual element or attribute in an instance message.

See Also

Logical Functoids Reference
Logical Functoids
How to Add Basic Functoids to a Map