Molecule/molecule.boilerplate/molecule.boilerplate.api/KeywordsStable/sample

sample

molecule.boilerplate.api.KeywordsStable.sample

trait sample extends AggrKw

Sample attribute value(s).

Apply sample keyword to attribute to return a single sample (random) attribute value of entities matching the molecule.

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

Apply sample(n) to return Vector of up to n distinct sample values.

Person.age(sample(3)).get.map(_.head ==> Vector(70, 25, 37)) // or other..

If values don't need to be distinct, random(n) can be used also.

Attributes

Note: 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 sample.type

Members list

Grouped members

aggregates

Distinct sample values of attribute.

Apply sample(n) to an attribute to return a Vector of up to n distinct sample values (can at most return the number of values that match).

for {
 _ <- Person.age.insert(25, 34, 37, 42, 70)
 _ <- Person.age(sample(3)).get.map(_.head ==> Vector(42, 25, 42)) // or other..
} yield ()

If values don't need to be distinct, random(n) can be used also.

Attributes

Returns: List[attribute-type]
Note: Can at most return the number of values that match.
Source: Keywords.scala

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