You can use Size() : Integer in OCL to count the characters in a text value when defining expressions in MDriven Designer.

Syntax

text.Size()

text is the value on which you call the operator. The operator returns an Integer: the number of characters that compose that value.

Examples

Expression	Result	Explanation
'MDriven'.Size()	7	The text MDriven contains seven characters.
'Order 42'.Size()	8	The space between Order and 42 is a character and is included in the count.
.Size()	0	Empty text contains no characters.

Use character count for text

Use Size() when you need the length of a text value. For example, this expression tests whether a customer-entered code has exactly six characters:

self.Code.Size() = 6

Do not use this text operator to count related objects. To count elements in a collection, use size() instead. For example, self.Orders->size() counts the orders associated with self.

See also

• Documentation:Learn OCL
• Documentation:OCLOperators size
• Documentation:OCLOperators toInteger () : Integer
• Documentation:OCL Number Operators