Previously, when the configuration properties annotation processor
encountered a property that was the same as an outer type that had
already been processed, it would fail with a stack overflow error.
This commit introduces the use of a stack to track the types that
have been processed. Types that have been seen before are skipped,
thereby preventing a failure from occurring. We do not fail upon
encountering a recursive type to allow metadata generation to
complete. At runtime, the recursive property will not cause a problem
if it is not bound.
Fixes gh-18365
Update the configuration processor to use the newly introduced
`@ConstructorBinding` annotation to determine when meta data
should be generated from constructor parameters.
Prior to this commit, the processor had no good way to tell when
constructor parameters should be used instead of getters/setters.
Closes gh-17035
This commit makes sure that a ConfigurationProperties type contributed
by a `@Bean` factory method uses properties binding regardless of the
presence of a matching constructor.
`@Bean` method makes sure the user is in control and will be responsible
of creating the instance. As a result, binding of properties will not
happen there and therefore can only happen with regular JavaBean
accessors.
Closes gh-18184
Previously, the configuration processor would ignore any
@ConfigurationProperties-annotated methods that were not public. This
prevented metadata generation for package-private @Bean methods such
as those in DataSourceConfiguration's inner-classes for DBCP2, Hikari,
and Tomcat JDBC.
This commit updates the annotation processor so that it will process
any non-private method annotated with @ConfigurationProperties.
Fixes gh-18124
Apply checkstyle rule to ensure that private and package private
classes do not have unnecessary public methods. Test classes have
also been unified as much as possible to use default scoped
inner-classes.
Closes gh-7316
This commit restructures the annotation processor to off-load most of
its logic in a PropertyDescriptor abstraction that is consumed to
generate the relevant metadata.
This has the benefit to isolate the various way properties can be
identified (java bean and lombok for now).
Closes gh-16036
This commit updates the annotation processor to write metadata in a
consistent way. Groups, properties and hints are written and each item
is ordered alphabetically based on its name.
Also, deprecated items are written last.
Closes gh-14347
