Steve Blackmon created STREAMS-527:
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Summary: Move default values on configuration beans from json
schemas into typesafe reference.conf files
Key: STREAMS-527
URL: https://issues.apache.org/jira/browse/STREAMS-527
Project: Streams
Issue Type: Task
Reporter: Steve Blackmon
Assignee: Steve Blackmon
A problem is introduced when merging configuration objects when the default
values are initialized on object creation. Specifically, it becomes much
harder to create partial configurations to merge, as every instance of the
configuration class contains the default values across most fields.
Typesafe config provides a recommended method for managing default values by
putting a reference.conf in each module containing defaults.
Going this route, creating a streams configuration bean with
StreamsConfigurator or a component configuration bean with
ComponentConfigurator will work exactly as before, and create a bean with a
constructor will contain only the fields that are explicitly set by user code,
ensuring that merging an ordered list of beans with juneau PojoMerge or similar
methods will do exactly what is asked instead of messing up on fields with
defined defaults.
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