EventSubscriptionRegistry (Alfresco Event Gateway :: API 1.0.0-SNAPSHOT API)

```
public interface EventSubscriptionRegistry
```
Registry that manages all the EventSubscription objects of the event gateway microservice. This component offers functionality to add, remove and retrieve all the event subscriptions.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`deregister(String id)`	Remove an existing `EventSubscription` from the registry by its identifier.
`EventSubscription`	`getById(String id)`	Get an `EventSubscription` from the registry by its identifier.
`void`	`register(String id, EventSubscription eventSubscription)`	Add a new `EventSubscription` under an identifier to the registry.

- Method Detail
  - register
```
void register(String id,
              EventSubscription eventSubscription)
```
    Add a new EventSubscription under an identifier to the registry. If the identifier was already registered, then the registration will be updated with the new EventSubscription.
    
    Parameters:
    
    id - the identifier to register the EventSubscription against
    
    eventSubscription - the EventSubscription to register
  - deregister
```
void deregister(String id)
```
    Remove an existing EventSubscription from the registry by its identifier. If the identifier is not included in the registry nothing happens.
    
    Parameters:
    
    id - the identifier to remove from the registry
  - getById
```
EventSubscription getById(String id)
```
    Get an EventSubscription from the registry by its identifier. If no EventSubscription is registered under that identifier, null is returned instead.
    
    Parameters:
    
    id - the EventSubscription identifier to search in the registry
    
    Returns:
    
    the corresponding EventSubscription or null if the identifier is not in the registry