| Package | Description | 
|---|---|
| javax.imageio.spi | A package of the Java Image I/O API containing the plug-in interfaces
for readers, writers, transcoders, and streams, and a runtime
registry. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | IIORegistryA registry for service provider instances. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | IIOServiceProvider. onDeregistration(ServiceRegistry registry,
                Class<?> category)A callback that will be whenever the Spi class has been
 deregistered from a  ServiceRegistry. | 
| void | RegisterableService. onDeregistration(ServiceRegistry registry,
                Class<?> category)Called when an object implementing this interface is removed
 from the given  categoryof the givenregistry. | 
| void | IIOServiceProvider. onRegistration(ServiceRegistry registry,
              Class<?> category)A callback that will be called exactly once after the Spi class
 has been instantiated and registered in a
  ServiceRegistry. | 
| void | RegisterableService. onRegistration(ServiceRegistry registry,
              Class<?> category)Called when an object implementing this interface is added to
 the given  categoryof the givenregistry. | 
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