Interface RegisterableService

All Known Implementing Classes:
IIOServiceProvider, ImageInputStreamSpi, ImageOutputStreamSpi, ImageReaderSpi, ImageReaderWriterSpi, ImageTranscoderSpi, ImageWriterSpi 
public interface RegisterableService

An optional interface that may be provided by service provider objects that will be registered with a ServiceRegistry. If this interface is present, notification of registration and deregistration will be performed.

See Also:
ServiceRegistry

Methods

Modifier and Type Method Description
void onDeregistration​(ServiceRegistry registry, Class<?> category)

Called when an object implementing this interface is removed from the given category of the given registry.
void onRegistration​(ServiceRegistry registry, Class<?> category)

Called when an object implementing this interface is added to the given category of the given registry.

Methods

onRegistration

void onRegistration(ServiceRegistry registry,
                    Class<?> category)

Called when an object implementing this interface is added to the given category of the given registry. The object may already be registered under another category or categories.

Parameters:
registry - a ServiceRegistry where this object has been registered.
category - a Class object indicating the registry category under which this object has been registered.

onDeregistration

void onDeregistration(ServiceRegistry registry,
                      Class<?> category)

Called when an object implementing this interface is removed from the given category of the given registry. The object may still be registered under another category or categories.

Parameters:
registry - a ServiceRegistry from which this object is being (wholly or partially) deregistered.
category - a Class object indicating the registry category from which this object is being deregistered.

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https://docs.oracle.com/en/java/javase/11/docs/api/java.desktop/javax/imageio/spi/RegisterableService.html