Adapting an already existing stream API to a Stream

[Remi Forax]

On 01/11/2013 09:11 PM, Brian Goetz wrote:
> Blocks don't return anything.  Where do the elements go?

You pass a Block as parameter, so it depends on the block.
By example,

static void generateAll(Block<? super Integer> block) {
   for(int i=0; i<1_000; i++) {
     block.accept(i);
   }
}

or with a cancel

interface Pusher<T>{   // the dual of Iterator
   boolean isStopped();
   void accept(T element);
}

static void generateAll(Pushiterator<? super Integer> pusher) {
   for(int i=0; i<1_000 && !pusher.isStopped(); i++) {
     pusher.accept(i);
   }
}

Rémi

>
> On 1/11/2013 3:00 PM, Remi Forax wrote:
>> Let say I have an API with one static method generateAll that takes a
>> Block as parameter and generate all elements by calling the Block n 
>> times.
>> How can I create a Stream on top of this API ?
>>
>> Rémi
>>