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[COTDC] 89 - NullStream

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Sean P. DeNigris

[COTDC] 89 - NullStream

Administrator

Continuing in Collections...

Today: NullStream

Comment Of The Day Contest - One Day One Comment
Rules:
#1: Each day a not commented class is elected. Each day the best comment will be integrated with name of the author(s).
#2: If you cannot comment it, deprecate it.
Results: http://code.google.com/p/pharo/wiki/CommentOfTheDayContest

p.s. this message was sent from a pharo image. Did you know you could easily do that?!

Cheers,
Sean

Stéphane Ducasse

Re: [COTDC] 89 - NullStream

I'm a stream doing nothing (NullObject pattern). I can be handy when a stream is needed and that we need to do nothing (for example
a logging in off mode).

Stef
On Dec 3, 2011, at 11:29 AM, [hidden email] wrote:

> Continuing in Collections...
>
> Today: NullStream
>
>
> Comment Of The Day Contest - One Day One Comment
> Rules:
> #1: Each day a not commented class is elected. Each day the best comment will be integrated with name of the author(s).
> #2: If you cannot comment it, deprecate it.
> Results: http://code.google.com/p/pharo/wiki/CommentOfTheDayContest
>
> p.s. this message was sent from a pharo image. Did you know you could easily do that?!
>

Igor Stasenko

Re: [COTDC] 89 - NullStream

On 3 December 2011 23:27, Stéphane Ducasse <[hidden email]> wrote:
> I'm a stream doing nothing (NullObject pattern). I can be handy when a stream is needed and that we need to do nothing (for example
> a logging in off mode).
>

is it for write only or for read as well (always answering nil and
always 'at end')?

> Stef
> On Dec 3, 2011, at 11:29 AM, [hidden email] wrote:
>
>> Continuing in Collections...
>>
>> Today: NullStream
>>
>>
>> Comment Of The Day Contest - One Day One Comment
>> Rules:
>> #1: Each day a not commented class is elected. Each day the best comment will be integrated with name of the author(s).
>> #2: If you cannot comment it, deprecate it.
>> Results: http://code.google.com/p/pharo/wiki/CommentOfTheDayContest
>>
>> p.s. this message was sent from a pharo image. Did you know you could easily do that?!
>>
>
>

--
Best regards,
Igor Stasenko.

Sean P. DeNigris

Re: [COTDC] 89 - NullStream

Administrator

Igor Stasenko wrote

is it for write only or for read as well (always answering nil and
always 'at end')?

For reading, it is a never-ending stream (#atEnd always answers false) of zeros (in binary mode) or null characters.

Thanks Steph for the comment!

Cheers,
Sean