com.twitter.storehaus

CollectionOps

object CollectionOps extends AnyRef

Helpful transformations on maps and collections. These are combinators or transformers on collections that should probably be somewhere in the scala collection API, but are not.

Source
CollectionOps.scala
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  1. final def !=(arg0: AnyRef): Boolean

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  2. final def !=(arg0: Any): Boolean

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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  5. final def ==(arg0: Any): Boolean

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  6. final def asInstanceOf[T0]: T0

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  7. def clone(): AnyRef

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    protected[lang]
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    @throws()

  8. def combineMaps[K, V](m: Seq[Map[K, V]]): Map[K, Seq[V]]

    from a Seq of Maps produce a Map with values being Seqs.

    from a Seq of Maps produce a Map with values being Seqs. Note that it is impossible to reverse this function because we lose track of which V came from which Map. Often used with a FutureCollector on the inner value.

  9. final def eq(arg0: AnyRef): Boolean

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  10. def equals(arg0: Any): Boolean

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  11. def finalize(): Unit

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  12. final def getClass(): java.lang.Class[_]

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  13. def hashCode(): Int

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  14. final def isInstanceOf[T0]: Boolean

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  15. final def ne(arg0: AnyRef): Boolean

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  16. final def notify(): Unit

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  17. final def notifyAll(): Unit

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  18. def pivotMap[K, OuterK, InnerK, V](pairs: Map[K, V])(split: (K) ⇒ (OuterK, InnerK)): Map[OuterK, Map[InnerK, V]]

    PivotEncoder to Map[InnerK, V] (vs Iterable[(InnerK, V)], as com.

    PivotEncoder to Map[InnerK, V] (vs Iterable[(InnerK, V)], as com.twitter.bijection.Pivot would provide).

  19. final def synchronized[T0](arg0: ⇒ T0): T0

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  20. def toString(): String

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  21. final def wait(): Unit

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  22. final def wait(arg0: Long, arg1: Int): Unit

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  23. final def wait(arg0: Long): Unit

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  24. def zipWith[K, V](keys: Set[K])(lookup: (K) ⇒ V): Map[K, V]

    create a Map from a Set of keys and a lookup function

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