You can use maxValue in OCL when you need the highest value in a collection of simple value objects.

What maxValue returns

maxValue returns the highest (maximum) value from a collection of simple value objects.

For example, if a collection contains the values 12, 24, and 18, maxValue returns 24.

Here are some examples of maxValue in use:

Expression	Result
(Bag{3, 2, 1, 6})->maxValue	6
Bag{DateTime.Parse('2019-01-01'), DateTime.Parse('2018-12-01')}->maxValue	'2019-01-01'

When to use it

Use maxValue when your expression already produces a collection and you need its largest value.

For example, a collection of measured values can use maxValue to identify the greatest measurement rather than processing every value individually.

Related operators

maxValue finds the greatest value in a collection. To find the lowest value in a collection, use minValue.

To compare two numbers, use Number::max ( r : Number ) : Number instead.

See also

• minValue
• Number::max ( r : Number ) : Number
• OCL General Operators
• OCL Boolean Operators