7.3 Precedence Rules

With so many operations available on an instance of a type, rules are needed to determine the precedence of the operations. Table 7-4 shows the OCL operations, starting with the highest precedence. In case of doubt, the use of parentheses () is always allowed to specify the precedence explicitly.

Table 7-4. Precedence for OCL operations (highest to lowest )

Name	Syntax
Pathname	::
Time expression	@pre
The dot, arrow, and message operations	., ->, ^, ^^
Unary operations	-, not
Multiplication and division	*, /
Addition and substraction	+, -
Relational operations	<, >, <=, >=, <>, =
Logical operations	and, or, xor
Logical implies	implies