Viewing a Constraint

You can view and edit an existing constraint using the PAL Expression Editor. To do this, you can open the editor in one of three ways:

Note: If the PAL Expression Editor does not display, or displays incorrectly, you may need to configure it. See Configuring the PAL Expression Editor for more information.

At the PAL Constraints Tab

At the Constraints tab, you may not see the constraint you wish to edit. In this case, you will have to make sure it is displayed.

  1. Go to the PAL Constraints Tab
  2. In the Choose Constraints pane, click on the constraint you wish to edit. 
    OR
  3. If the constraint you wish to edit is not visible in the Choose Constraints pane, click the  Add button to view the list of constraints in the knowledge base, then choose the one you want and click OK.
  4. Click the View button at the upper right of the Choose Constraints pane.
    The editor opens in a separate window.

At the Instances Tab

  1. Go to the Instances Tab.
  2. Display the classes under :SYSTEM-CLASS, display the classes under :CONSTRAINT, and click on :PAL-CONSTRAINT to highlight it. 
  3. Go to the Direct Instances pane and click the View button.
    The PAL Expression Editor appears in the Forms pane of the Instances tab.

At the Classes Tab

To view a constraint that is attached to a class at the Classes Tab:

  1. Go to the Classes Tab.
  2. Highlight the class to which the constraint is attached.
    The Class Form for the selected class is displayed at the right of the Classes Tab.
  3. Select the constraint you wish to edit in the Constraints pane in the Class Form.
  4. Click the View button at the upper right of the Constraints pane. 
    The PAL Expression Editor for the selected constraint opens in a separate window.

PAL Constraints User Interface/Viewing a Constraint

Next: Deleting a Constraint

PAL Table of Contents