trait rand extends AnyRef
Random attribute value(s).
Apply random
keyword to attribute to return a single random attribute of entities matching the molecule.
Person.age.insert(25, 34, 37, 42, 70) Person.age(random).get.head === 34 // or other..
Apply random(n)
to return Vector of n random values. Observe though that duplicate random values can re-occur.
Person.age(random(3)).get.head === Vector(42, 25, 42) // or other..
To get distinct values only, use the sample(n)
keyword instead.
- Source
- AggregateKeywords.scala
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Aggregate keywords
Keywords applied to attributes that return aggregated value(s).
- def apply(i: Int): rands
Random values of attribute.
Random values of attribute.
Apply a number n torandom
to return Stream of n random attribute values of from entities matching the molecule.
Observe that duplicate random values can re-occur.Person.age.insert(25, 34, 37, 42, 70) Person.age(random(3)).get.head === Stream(42, 25, 42) // or other..
To get distinct values only, use the
sample(n)
keyword instead.- returns
List[attribute-type]
Documentation/API for the Molecule library - a meta DSL for the Datomic database.
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