spring-projects / spring-projects/spring-boot
@ConfigurationProperties should have an option to have properties read each time from Environment
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- Java
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Description
Originally raised on the SPR issue tracker:
https://jira.springsource.org/browse/SPR-11289
@ConfigurationProperties objects should have some mechanism for allowing some or all properties to be read from a propertySource on each get invocation. It seems like instead of injected a concrete implementation into the AppContext we should inject a proxy for the Config object which can reference the Environment abstraction.
The usecase for this would be when we have implemented a custom PropertySource which is aware of property changes.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading the @ConfigurationProperties and Environment abstractions, then inspect how configuration objects are injected into the application context. Determine how a custom, change-aware PropertySource could be consulted on each getter invocation. Done means a defined option supports dynamic reads for some or all properties without breaking existing behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java, spring-boot
- Domain
- backend
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100