Introduce TypeFilterUtils for processing @ComponentScan.Filter

[mp911de]

Spring Data leverages ComponentScan.filter for repository scanning while implementing the filter annotation parser itself.

That arrangement has lead to differences in implementations such as the lack for *Aware callbacks (see spring-projects/spring-data-commons#2481). It would be good to be able to reuse ComponentScanAnnotationParser to ensure consistency for @Filter support across projects leveraging ComponentScan-like functionality.

[sbrannen]

Effectively what you want is the support provided by org.springframework.context.annotation.ParserStrategyUtils -- right?

[mp911de]

ParserStrategyUtils is the last mile. Our code is at AnnotationRepositoryConfigurationSource. typeFiltersFor(…). Having something that is able to parse and return typeFilters would be already sufficient.

[sbrannen]

If we introduced something like TypeFilterUtils that makes the org.springframework.context.annotation.ComponentScanAnnotationParser.typeFiltersFor(AnnotationAttributes) functionality public, would that meet your needs?

[mp911de]

Totally, it would also not require to make the component scan part public of ComponentScanAnnotationParser.

[sbrannen]

@mp911de, please take a look at the new TypeFilterUtils and let us know if that meets your needs.

[mp911de]

Exactly what we need in Spring Data. Thank you.