You can configure the data operation in an action as a function expression. You can also select a function expression from a list of expressions in the rule specification. Use the function options in the action to configure or select the expression.
You can use the function options as an alternative to the inline action options that the rule statement displays in the workspace. You can configure a function to read multiple inputs. You can also use the function options to add a dictionary or another rule specification to the condition.
To configure an expression, select the function option from the action menu. When you select the field, you open the
Define Action
dialog box. The dialog box displays a common list of function expressions for all operators.
The following image shows the
Define Action
dialog box:
The dialog box contains the following options:
Merge
Use the Merge options to return data values from multiple inputs as a single output.
Input
Use the Input options to return a data value. You can specify a constant value, or you can select an input. If you select an input, the action returns the value from the input column on the same row as the condition input.
Functions
Use the Functions options to apply a function expression to the input that you select and to return the output of the expression.
Standardize
Use the Standardize options to remove an input value or to update a copy of the input data value and return the copy. The section below describes the standardization options.
Convert Case
Use the Convert Case options to change the character case of the input data values.
Rules
Use the Rules options to return the output of a rule specification that you add to the function.
Mapplets
Use the Mapplets options to return the output of a mapplet that you add to the function.
Expressions
Use the Expressions options to define and apply a custom expression to the input that you select and to return the output of the expression. You can enter an expression as text, or you can select from a range of built-in expressions.
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