max

molecule.boilerplate.api.KeywordsStable.max

trait max extends AggrKw

Maximum attribute value(s).

Apply max keyword to attribute to return the maximum attribute value of entities matching the molecule.

for {
 _ <- Person.age.insert(25, 34, 37, 42, 70)
 _ <- Person.age(max).get.map(_.head ==> 70)
} yield ()

Apply max(n) to return Vector of the n biggest values.

Person.age(max(3)).get.map(_.head ==> Vector(37, 42, 70))

Attributes

Note: max/max(n) supports all value types (via comparators).
max(n) Can at most return the number of values that match.
Source: Keywords.scala
Graph
Supertypes: trait AggrKw

trait Kw

class Object

trait Matchable

class Any
Known subtypes: object max.type

Maximum n values of attribute.

Apply max(n) to attribute to return Vector of the n biggest values of entities matching the molecule.

for {
 _ <- Person.age.insert(25, 34, 37, 42, 70)
 _ <- Person.age(max(3)).get.map(_.head ==> List(37, 42, 70))
} yield ()

Returns: List[attribute-type]
Note: max/max(n) supports all value types (via comparators).
Can at most return the number of values that match.
Source: Keywords.scala

In this article

Generated with