Designer 10.7 | webMethods Service Development Help | Conditional Expressions | Operators for Use in Conditional Expressions | Logical Operators
 
Logical Operators
You can use the following logical operators in expressions to create conditions consisting of more than one expression:
Operator
Syntax
Description
!
! expr
Negates the next expression.
This example...
Evaluates to true if...
! (%sku% = "WM001")
The value of the sku variable is not equal to WM001.
not
not expr
Negates the next expression.
This example...
Evaluates to true if...
not (color = "blue")
The color variable is not equal to blue.
|
expr | expr
Logical *OR. True if either of the expressions is true.
This example...
Evaluates to true if...
%color% = "blue" | %color% = "red"
The value of the color variable is blue or red.
||
expr || expr
Logical OR. True if either of the expressions is true.
This example...
Evaluates to true if...
totalPrice > 1000 || customerID = 'Favorite Customer'
The value of the totalPrice variable is greater than 1000 or the value of the customerID variable equals Favorite Customer.
or
expr or expr
Logical OR. True if either of the expressions is true.
This example...
Evaluates to true if...
creditCardNum = $null or cardExpireDate = $null or cardExpireDate <= orderDate
The value of the creditCardNum variable is null or missing or if the value of the cardExpireDate variable is null or missing or if the value of the cardExpireDate variable is less than or equal to the value of the orderDatevariable.
&
expr & expr
Logical AND. Both expressions must evaluate to true for the entire condition to be true.
This example...
Evaluates to true if...
%customerID% = 'Favorite Customer' & %sku% = 'WM001'
The value of the customerID variable is Favorite Customer and the value of the sku variable is WM001.
&&
expr && expr
Logical AND. Both expressions must evaluate to true for the entire condition to be true.
This example...
Evaluates to true if...
quantity >= 20 && totalPrice >= 100
The value of the quantity variable is greater than or equal to 20 and the value of the totalPrice variable is greater than or equal to 100.
and
expr and expr
Logical AND. Both expressions must evaluate to true for the entire condition to be true.
This example...
Evaluates to true if...
!color and !size
The color variable does not exist in the input or is null and the size variable does not exist in the input or is null.
Related Topics
Standard Relational Operators
Lexical Relational Operators