Object

com.twitter.storehaus

CollectionOps

Related Doc: package storehaus

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object CollectionOps

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.

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

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  2. final def ##(): Int

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

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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

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    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 com.twitter.storehaus.FutureCollector on the inner value.

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

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  8. def equals(arg0: Any): Boolean

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  9. def finalize(): Unit

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  10. final def getClass(): Class[_]

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  11. def hashCode(): Int

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  12. final def isInstanceOf[T0]: Boolean

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

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  14. final def notify(): Unit

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  15. final def notifyAll(): Unit

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

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

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

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  18. def toString(): String

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  19. final def wait(): Unit

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

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

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

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

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