You can use includes in OCL to test whether a value is contained in another value, such as whether a car name contains the text Toyota.
Syntax
self.includes(object)
self is the value you search in. object is the value you look for. The expression returns a Boolean value:
| Result | Meaning |
|---|---|
true
|
object is contained in self.
|
false
|
object is not contained in self.
|
Find a name containing Toyota
Given a Car class with a Name attribute, use includes on the name when you need to test for the text Toyota:
Name.includes('Toyota')
This expression returns true for a name such as Toyota Corolla. Use the resulting Boolean expression where your OCL requires a condition—for example, when evaluating whether a car's name contains that text.
Case sensitivity
includes is case-sensitive. The search text must use the same letter case as the text being tested.
| Name value | Expression | Result |
|---|---|---|
Toyota Corolla
|
Name.includes('Toyota')
|
true
|
Toyota Corolla
|
Name.includes('toyota')
|
false
|
When you combine this result with other conditions, use the Boolean operators described in Documentation:OCL Boolean Operators.