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  • KIP-358: Migrate Streams API to Duration instead of long ms times

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Discussion thread: here
JIRA:

Jira
serverASF JIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-7277
Jira
serverASF JIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-7477

Motivation

  1. KAFKA-7277:

    Right now Streams API universally represents time as ms-since-unix-epoch.
    There's nothing wrong, per se, with this, but Duration is more ergonomic for an API.
    What we don't want is to present a heterogeneous API, so we need to make sure the whole Streams API is in terms of Duration.

  2. KAFKA-7477:
    Improve of semantics of KafkaStreams#close(Duration)

Public Interfaces

We need to add following method to public API.

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  1. In this scope keep existing methods as is.
    Try to reduce the visibility of methods in next tickets.
  2. Introduce finer methods with Instant and Duration

Changes in KafkaStream#close semantics:

  1. reject negative numbers
  2. make 0 just signal and return immediately (after checking the state once)

Compatibility, Deprecation, and Migration Plan

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