https://github.com/apache/aries-journaled-events

Apache aries
https://github.com/apache/aries-journaled-events

aries java library

Last synced: 9 months ago
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Apache aries

• Host: GitHub
• URL: https://github.com/apache/aries-journaled-events
• Owner: apache
• License: apache-2.0
• Created: 2018-12-30T09:34:20.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2023-09-05T21:57:45.000Z (almost 3 years ago)
• Last Synced: 2025-10-14T00:17:13.581Z (9 months ago)
• Topics: aries, java, library
• Language: Java
• Homepage: https://aries.apache.org/
• Size: 120 KB
• Stars: 1
• Watchers: 12
• Forks: 7
• Open Issues: 4
• Metadata Files:
  • Readme: Readme.md
  • License: LICENSE

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README

          
# Apache Aries Journaled events

Jenkins: [![Build Status](https://builds.apache.org/buildStatus/icon?job=Aries-journaled-events)](https://builds.apache.org/job/Aries-journaled-events/)

Travis: [![Travis Build Status](https://travis-ci.org/apache/aries-journaled-events.svg?branch=master)](https://travis-ci.org/apache/aries-journaled-events)

This subproject provides an API (possibly as spec) and backends for journaled streams of events. These extend the publish/subscribe model with means to start consume from an point in the stored event stream history.

## Goals

* Provide traditional publish / subscribe semantics

* Allow consuming a stream from any point in the history (given it is not yet evicted)

## Non goals (to be discussed)

* No coverage of extreme scaling like Apache Kafka. So no sharding support in the API (like partitions).

## Requirements

* Messages sent to a topic must be journaled and must be available to all consumers

* Consumers must be able to start consuming messages from any point in the history that is still available

* If a consumer specifies a position that is not available anymore then it must start with the oldest message

* Each consumer must receive messages in the same order they were sent

* The journal of each topic may evict messages that are older than a certain retention time