Mastodawn

Hüseyin Akdoğan Mar 19, 2025

Gatherers is a powerful extension of the Stream API which was initially introduced as a preview feature in JDK 22, and became a standard as of yesterday. I tried to explain how it supports the features that intermediate operations have, and how they can be used.
#java #streamAPI #streamGatherers
https://foojay.io/today/introduction-to-intermediate-operations-modeler-stream-gatherers/

Introduction to intermediate operations modeler: Stream Gatherers

Gatherers is a new and powerful API that enhances the Stream API by modeling intermediate operations and allowing the definition of custom intermediate operations.

foojay

Karl Heinz Marbaise (he/him)Jan 7, 2024

@javaaktuell
@javabubble
I have taken a deeper look into the JDK22 Stream Gatherers #java https://blog.soebes.io/posts/2024/01/2024-01-07-jdk-gatherer/
#jdk22 #java #streamapi #gatherer

JDK22 - Gatherer

Overview If you take a look into JDK-22, you will find a very interesting thing, which is called 461: Stream Gatherers (Preview). Those Gatherers are a way to …

InfoQ Dec 19, 2023

JEP 461, Stream Gatherers (Preview), has been completed for #JDK22.

This JEP proposes to enhance the #StreamAPI to support custom intermediate operations.

"This will allow stream pipelines to transform data in ways that are not easily achievable with the existing built-in intermediate operations."

Stream API Evolution: a Closer Look at JEP 461's Stream Gatherers

After its review concluded, JEP 461, Stream Gatherers (Preview), has been completed for JDK 22. This JEP proposes to enhance the Stream API to support custom intermediate operations. "This will allow stream pipelines to transform data in ways that are not easily achievable with the existing built-in intermediate operations."

InfoQ

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