Good call.
That’s when I heavily miss Scala Case classes and options. You get clarity on
optional vs mandatory fields, one constructor, and immutability. If losing
Immutability is an issue, then the with pattern is a no-go and then I’ll just
add a missing constructor the way Ismael described it. That’ll make the PR way
simpler, with limited refactoring.
Regarding the ConsumerRecord, I’m happy to have a look, but it’s the first time
I see it concretely. When would you manually construct such a record? Isn’t the
client handling all that for you behind the scene?
On 23/4/17, 3:21 pm, "Michael Pearce" <michael.pea...@ig.com> wrote:
If moving to a wither pattern instead of a builder. How will this enforce
immutability? Eg current PR it is now changing to allow possible change values
once set.
Or are you proposing to change it to a mutable record? And move to a
closable record similar to the closing of the headers on send.
How about also the consumer record, is this also being looked at so we
don't have two very different styles.
Cheers
Mike
Sent using OWA for iPhone
________________________________________
From: isma...@gmail.com <isma...@gmail.com> on behalf of Ismael Juma
<ism...@juma.me.uk>
Sent: Saturday, April 22, 2017 11:53:45 PM
To: dev@kafka.apache.org
Subject: Re: [DISCUSS] KIP 141 - ProducerRecordBuilder Interface
On Sat, Apr 22, 2017 at 6:16 PM, Matthias J. Sax <matth...@confluent.io>
wrote:
> I think Ismael's suggestion is a valid alternative.
>
> However, `timestamp` is an optional field and thus we should have at
> least two constructors for this:
>
> - ProducerRecord(String topic, K key, V value)
- ProducerRecord(String topic, K key, V value, Long timestamp)
>
Yes, the other one already exists.
Ismael
The information contained in this email is strictly confidential and for
the use of the addressee only, unless otherwise indicated. If you are not the
intended recipient, please do not read, copy, use or disclose to others this
message or any attachment. Please also notify the sender by replying to this
email or by telephone (+44(020 7896 0011) and then delete the email and any
copies of it. Opinions, conclusion (etc) that do not relate to the official
business of this company shall be understood as neither given nor endorsed by
it. IG is a trading name of IG Markets Limited (a company registered in England
and Wales, company number 04008957) and IG Index Limited (a company registered
in England and Wales, company number 01190902). Registered address at Cannon
Bridge House, 25 Dowgate Hill, London EC4R 2YA. Both IG Markets Limited
(register number 195355) and IG Index Limited (register number 114059) are
authorised and regulated by the Financial Conduct Authority.
