| Class and Description | 
|---|
| LensEventListener 
 The handler method should not block so that the event service can proceed to notifying other listeners as soon as
 possible. | 
| Class and Description | 
|---|
| LensEventListener 
 The handler method should not block so that the event service can proceed to notifying other listeners as soon as
 possible. | 
| Class and Description | 
|---|
| LensEvent Instantiates a new lens event. | 
| LensEventListener 
 The handler method should not block so that the event service can proceed to notifying other listeners as soon as
 possible. | 
| LensEventService Singleton which is responsible for managing the event-listener mapping as well as processing events. | 
| Class and Description | 
|---|
| LensEvent Instantiates a new lens event. | 
| LensEventListener 
 The handler method should not block so that the event service can proceed to notifying other listeners as soon as
 possible. | 
| Class and Description | 
|---|
| LensEvent Instantiates a new lens event. | 
| LensEventListener 
 The handler method should not block so that the event service can proceed to notifying other listeners as soon as
 possible. | 
| Class and Description | 
|---|
| LensEvent Instantiates a new lens event. | 
| Class and Description | 
|---|
| LensEvent Instantiates a new lens event. | 
| Class and Description | 
|---|
| AsyncEventListener Event listeners should implement this class if they wish to process events asynchronously. | 
| LensEventListener 
 The handler method should not block so that the event service can proceed to notifying other listeners as soon as
 possible. | 
| Class and Description | 
|---|
| AsyncEventListener Event listeners should implement this class if they wish to process events asynchronously. | 
| LensEventListener 
 The handler method should not block so that the event service can proceed to notifying other listeners as soon as
 possible. | 
| LensEventService Singleton which is responsible for managing the event-listener mapping as well as processing events. | 
| Class and Description | 
|---|
| LensEvent Instantiates a new lens event. | 
| Class and Description | 
|---|
| LensEvent Instantiates a new lens event. | 
| Class and Description | 
|---|
| AsyncEventListener Event listeners should implement this class if they wish to process events asynchronously. | 
| LensEventListener 
 The handler method should not block so that the event service can proceed to notifying other listeners as soon as
 possible. | 
| LensEventService Singleton which is responsible for managing the event-listener mapping as well as processing events. | 
| Class and Description | 
|---|
| AsyncEventListener Event listeners should implement this class if they wish to process events asynchronously. | 
| LensEvent Instantiates a new lens event. | 
| LensEventListener 
 The handler method should not block so that the event service can proceed to notifying other listeners as soon as
 possible. | 
| LensEventService Singleton which is responsible for managing the event-listener mapping as well as processing events. | 
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