Updated State of the Lambda

[Gernot Neppert]

Am 12.12.2011 12:21, schrieb Stephen Colebourne:
>   int sum = list.map(e ->  e.size()).reduce(0, (a, b) ->  a+b);
>
> I continue to be concerned about the verbs being used and their
> readability. Clearly these terms are used elsewhere, but I continue to
> be of the opinion that "map" is the wrong verb for Java, because of
> Java.util.Map. My preference currently remains as
> "transform/Transformer". Similarly, I think "combine" may be a better
> verb than "reduce". With altered verbs, I think the mental shift
> required is lessened:
>
>   int sum = list.transform(e ->  e.size()).combine(0, (a, b) ->  a+b);

I endorse your suggestion. I'd also prefer "transform", mainly because I 
tend to connect the verb "map" mentally with an operation such as the 
following:

interface Collection<E> {
  ....

public <K,M extends Map<? super K,? super E> M map(Function<? super E,? 
extends K> mapper, M target);