Gatherers4j 0.10.0 is out and built with Java 24! Other notable items: - Implement mapIndexed() and peekIndexed() - Implement size-based and frequency-based random sampling - An internal reorg of some packages which should be invisible github.com/tginsberg/ga... - ThreadSky

todd.ginsberg.com • 93 days ago

Gatherers4j 0.10.0 is out and built with Java 24!

Other notable items:
- Implement mapIndexed() and peekIndexed()
- Implement size-based and frequency-based random sampling
- An internal reorg of some packages which should be invisible

https://github.com/tginsberg/gatherers4j/releases/tag/v0.10.0

Comments

lobaorn.bsky.social•93 days ago

Agora que o Java 24 trouxe oficialmente Gatherers, vejam essa lib acima, e aqui o post: https://todd.ginsberg.com/post/java/gatherers/ @jeffquesado.ulivre.dev @lobocode.bsky.social @digitalbricklayer.bsky.social @matheuslf.dev @vepo.dev @carlosenog.dev @aleatorio.dev.br @luismachadoreis.bsky.social

aleatorio.dev.br•92 days ago

1. The stream source.
2. Zero or more intermediate operations.
3. A single terminal operation.

Tem tanta pegadinha em prova de certificação por causa disso x.x

aleatorio.dev.br•92 days ago

Cara, eu achei a iniciativa boa. Principalmente por causa do Gatherers4j. Nunca passei pelo problema listado de precisar de operação intermediária customizada. Provavelmente porque meu vício de pensamento sempre fez eu buscar alternativas antes do problema surgir.

digitalbricklayer.bsky.social•92 days ago

to lendo ainda mais eu não sabia disso

Only when a terminal operation is called does the stream begin processing elements through the entire chain of operations

jeffquesado.ulivre.dev•92 days ago

Isso que torna a pipeline do Java tão boa!
Inclusive dart bebe dessa mesma ideia, por isso que diferentemente do JS precisa de um comando a mais pra transformar em lista de novo

jeffquesado.ulivre.dev•92 days ago

Por exemplo, se o compilador de JS não otimizar coisas no meio do caminho, chamar qqr operação funcional de arrays no JS criará uma cópia nova do array

marcelmfa.bsky.social•92 days ago

📌

jeffquesado.ulivre.dev•92 days ago

I am reading for the third time this article, @todd.ginsberg.com . And I just realized that the `distinctBy` hypothetical gatherer is not there.
So I just wrote something.
I still do not understand properly what the `Integrator.integrate` method means

todd.ginsberg.com•92 days ago

👋 distinctBy() is the example used in the Gatherer JEPs because it feels like JDK should have it already. Just like you, I thought "I can write my own" and that ballooned into a side project around gatherers. :) Thanks for the feedback on the integrator part, I'll see if I can make that more clear!

jeffquesado.ulivre.dev•92 days ago

But as there won't be a shot-circuit, I guess I am fine with that for now, haha!

lobaorn.bsky.social•92 days ago

First time I really read about Gatherers was from Remi Forax here https://github.com/forax/we_are_all_to_gather then O followed the mailing list, which had many interactions with @viktorklang.com , then perhaps a content from @khmarbaise.bsky.social and so on. And now we have it in GA :)

todd.ginsberg.com•92 days ago

If you change "return true" in the integrator to "return !downstream.isRejecting()" you can pass along the short-circuit signal from downstream. The Greedy integrator in this case means "I won't ever return false, but I might pass one along from the downstream".

Comments

Posting Rules

Reply