To register a custom ImageReader with service ranking of 1 (default is 0) you need to create a bundle providing an ImageReader service as follows:
@Component @Service(ImageReader.class) @Property(name=Constants.SERVICE_RANKING, intValue=1) public class BetterImageReader implements ImageReader { // ... }
When the component metaType is declared true and the service.ranking property is declared non-private, the service.ranking can by dynamically configured at runtime in the Felix Web Console.
@Component(metatype=true) @Service(ImageReader.class) @Property(name=Constants.SERVICE_RANKING, intValue=1, propertyPrivate=false) public class BetterImageReader implements ImageReader { // ... }