Expression

Specify an expression that yields the value that should be assigned to the selected variable. The expression is built on several lines, each of which contains an operand and an operator.

Test

Check the code syntax.

Description

Type a short description of what this simple node does.

Variable

Select the variable that should receive the calculation result.

Note
If the receiving variable is an array, you should select the specific array element you want in this field. Unlike many other variable selection fields in the Product Builder, there is no special field here for the array index.

Type

Select whether the operand specified on this line (that is, the content of the Operandfield) is a fixed value or a variable.

Operand

Specify an operand in the expression you are building. Depending on the choice made in the Typefield, the operand can be either a fixed value or one of your product model's variables. If you specify a variable that is an array, please note that you need to select the specific array element you want, not just the name of the variable.

When the Typefield is set to Variable, you can get a list of available variables (and array elements) by pressing the arrow button next to the Operandfield.

Note
When the Typefield is set to Value, you need to consider the data type of the values you enter. Text values must be enclosed in single quotes (') - otherwise the compiler interprets the text as a variable name, and you get a compilation error when the rule is validated. Contrary to this, numerical values should not be enclosed in quotes.

Operator

Specify an operator that connects the current line with the next line - to form an expression (or part of a larger expression). The following operators are available (listed in order of operator precedence):