Policy Server Guides › Policy Server Configuration Guide › User Directories › Named Expressions › Define Named Expressions › How to Use the Expression Editor › How to Edit an Expression › Change a Boolean Operator in an Expression

Change a Boolean Operator in an Expression

You can change a Boolean operator in an expression by clicking one of the following buttons on the Infix Notation group box in the expression editor:

• And/Or
• Not
• XOR
• Conditional?YES:NO

To change a Boolean operator in an expression

1. Select one condition or group of conditions by clicking it.

   Note: To select multiple adjacent conditions, hold down the Shift key while clicking.

2. Click one of the following buttons:

   And/Or

   Switches between the Boolean operators AND and OR.

   Example:

   AND condition_1

   becomes

   OR condition_1

   Note: The AND/OR button switches XOR to AND.

   Not

   Switches between adding and removing the Boolean operator NOT.

   Example:

   AND condition_1

   becomes

   AND NOT condition_1

   XOR

   Switches the Boolean operators AND and OR to XOR.

   Example:

   AND condition_1

   becomes

   XOR condition_1

   Note: The exclusive OR (XOR) operator takes two Boolean operands and returns TRUE if either operand is TRUE, but not both.

   Conditional?YES:NO

   Adds the conditional decision operator.

   Example:

   condition_1

   becomes

   condition_1 ? "YES" : "NO"

   The edited expression is displayed in the fields on the Resulting Notation and Infix Notation group boxes in the expression editor.