org.apache.sling.feature.builder

Interface FeatureExtensionHandler

@ConsumerType
public interface FeatureExtensionHandler

A feature extension handler can merge a feature of a particular type and also post process the final assembled feature.

Method Summary

Modifier and Type	Method and Description
boolean	canMerge(String extensionName) Checks whether this merger can merge extensions with that name
void	merge(Feature target, Feature source, String extensionName) Merge the source extension into the target extension.
void	postProcess(Feature feature, String extensionName) Post process the feature with respect to the extension.

Method Detail

canMerge

boolean canMerge(String extensionName)

Checks whether this merger can merge extensions with that name

Parameters:

extensionName - The extension name

Returns:

true if merger can handle this

merge

void merge(Feature target,
           Feature source,
           String extensionName)

Merge the source extension into the target extension. The caller of this method already ensured that both extensions share the same name and type and that canMerge(String) returned true.

Parameters:

target - The target feature

source - The source feature

extensionName - The extension name

Throws:

IllegalStateException - If the extensions can't be merged

postProcess

void postProcess(Feature feature,
                 String extensionName)

Post process the feature with respect to the extension. Post processing is invoked after all extensions have been merged. This method is called regardless whether canMerge(String) returned true or not.

Parameters:

feature - The feature

extensionName - The extension name

Throws:

IllegalStateException - If post processing failed