org.apache.deltaspike.core.spi.config.view

Interface ConfigPreProcessor<T extends Annotation>

Type Parameters:

T - meta-data type

All Known Implementing Classes:

Folder.FolderConfigPreProcessor, Secured.AnnotationPreProcessor, View.ViewConfigPreProcessor, ViewControllerRef.AnnotationPreProcessor

public interface ConfigPreProcessor<T extends Annotation>

Allows to change the found meta-data (e.g. replace default values - example: Page.extension needs "" as a default for the meta-data-merging process, but "xhtml" should be the final default) or the ViewConfigNode itself. E.g. to register callbacks supported by the meta-data (see ViewMetaData.preProcessor() )

Method Summary

Methods

Modifier and Type	Method and Description
T	beforeAddToConfig(T metaData, ViewConfigNode viewConfigNode)

Method Detail

beforeAddToConfig

T beforeAddToConfig(T metaData,
                  ViewConfigNode viewConfigNode)

Parameters:

metaData - The annotation-instance which was found or the inherited instance. Since it's possible to override annotation-attributes alongside the inheritance-path, it can be a merged representation. To get rid of meta-data which is only inherited, it's required to check the presence of the physical annotation e.g. via ViewConfigNode#getSource#isAnnotationPresent and return a synthetic literal-instance (as a marker/placeholder), because 'null' isn't supported as return-value.

viewConfigNode - Instance which represents the current node

Returns:

The annotation-instance which should be used for the final meta-data