MapDecorator

Alias for mergeByKey

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Alias for zipByKey

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Perform a left outer join of this and that.

Equivalent to mergeByKeyWith(that) { case (Some(v), maybeW) => (v, maybeW) }.

Attributes

That: Type of the resulting collection
W: Type of values of that
bf: Builder for the resulting collection
Returns:: A Map that associates all the keys k of this to pairs (v, Some(w)) if that associates k to w, or (v, None) if that doesn’t contain k

Perform a full outer join of this and that.

Equivalent to mergeByKeyWith(that) { case any => any }.

Attributes

That: Type of the resulting collection (e.g. Map[Int, (Option[Boolean], Option[String])])
W: Type of values of that (e.g. String)
bf: Builder for the resulting collection
Returns:: A Map that associates all the keys k of this or that to pairs (Some(v), Some(w)) if this associates k to v and that associates k to w, or pairs (None, Some(w)) if this doesn’t contain k, or pairs (Some(v), None) if that doesn’t contain k

Attributes

That: Type of the result (e.g. Map[Int, (String, Option[Boolean])])
W: Type of values of the other Map (e.g. Int, String)
X: Type of values of the resulting Map
bf: Builder driven by the type of this Map
f: Combination function
other: Map to merge
Returns:: A Map associating all the keys from this and that with values returned by the partial function f, when this one is defined.

Perform a right outer join of this and that.

Equivalent to mergeByKeyWith(that) { case (maybeV, Some(w)) => (maybeV, w) }.

Attributes

That: Type of the resulting collection (e.g. Map[Int, (Option[Boolean], String)])
W: Type of values of that (e.g. String)
bf: Builder for the resulting collection
Returns:: A Map that associates all the keys k of that to pairs (Some(v), w) if this associates k to v, or (None, w) if this doesn’t contain k

Combines the entries of this Map with the entries of that Map that have the same key, tupling their values. xs.zipByKey(ys) is a shorthand for xs.zipByKeyWith(ys)((_, _)).

Attributes

That: Type of the result (e.g. Map[Int, (String, Boolean)], TreeMap[String, (Int, Int)])
W: Type of values of the other Map (e.g. Int, String)
bf: Builder driven by the type of this Map
other: Other Map
Returns:: A Map that associates all the keys k contained by both this and that to pairs (v, w) where v is the value associated by this to k and w the value associated by that to k

Combines entries of this Map with entries of that Map that have the same key, using the combination function f

Attributes

That: Type of the resulting Map
W: Type of values of the other Map (e.g. Int, String)
X: Type of values of the resulting Map
bf: Builder driven by the type of this Map
f: Combination function
other: Other Map
Returns:: A Map that associates all the keys k contained by both this and that to the result of the application of f to the values v and w respectively associated by this and that to k

MapDecorator

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Members list

Value members

Concrete methods

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Implicits

Implicits