Support placeholder in EnableMBeanExport [SPR-11105]

[spring-projects-issues]

Christian Dupuis opened SPR-11105 and commented

It would be really handy if Spring could support placeholders and expressions in annotations. Specifically in Enable* annotations. See the following as an example:

@EnableMBeanExport(defaultDomain = "${spring.jmx.default_domain:my-domain}")

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Affects: 4.0 RC1

[spring-projects-issues]

Juergen Hoeller commented

Let's limit this issue to placeholders in @EnableMBeanExport for the time being. Expressions would cause lifecycle issues at such an early point of processing, so it seems preferable to limit this to static placeholders.

FWIW, the rest of our @Enable annotations do not seem to have applicable String based attributes that would actually benefit from placeholders. If there are specific further candidates there, let's handle them one by one.

Juergen