No-reuse-streams

[Henry Jen]

On Nov 26, 2012, at 8:21 AM, "David M. Lloyd" <david.lloyd at redhat.com> wrote:

> 
>> Should the following throw an ISE on the last line of the following?
>> 
>> Stream s = ..
>> Object i1 = s.findFirst();
>> Stream s1 = s.map(...);
>> 
>> i.e. should we fail on the s.map(...) or just when a terminal operation occurs, if at all?
> 
> I agree with you and Rémi - this should fail.
> 



While it may be "consistent", what is the obvious alternative when need to do something like this?
A use case like this is probably following,

For a input stream, find a marker, and then continue to process the rest of stream.

I guess the general question is: how does one control the flow of the stream? How do we continue the stream after a terminal op which does not consume whole stream.

Cheers,
Henry