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javafunctional-java

Infinite stream from enumeration

In functional-java, I expected the following to create an infinite stream:

Stream.forever(Enumerator.booleanEnumerator, false);

But it stops after one full enumeration. The javadoc kind of confirms this, stating that it may only stream until the enumeration is exhausted.

Returns a stream that is either infinite or bounded up to the maximum 
value of the given iterator starting at the given value and stepping at 
increments of 1.

So, how do I make an infinite stream?

Solution

  • You could look at Stream.cycle, it makes an infinite stream out of the input stream

    Stream.cycle(Stream.forever(Enumerator.booleanEnumerator, false))