SubscriptionRegistry (Spring Framework 5.2.12.RELEASE API)

All Known Implementing Classes:
AbstractSubscriptionRegistry, DefaultSubscriptionRegistry
```
public interface SubscriptionRegistry
```
A registry of subscription by session that allows looking up subscriptions.
Since:
4.0
Author:
Rossen Stoyanchev

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`MultiValueMap<String,String>`	`findSubscriptions(Message<?> message)`	Find all subscriptions that should receive the given message.
`void`	`registerSubscription(Message<?> subscribeMessage)`	Register a subscription represented by the given message.
`void`	`unregisterAllSubscriptions(String sessionId)`	Remove all subscriptions associated with the given sessionId.
`void`	`unregisterSubscription(Message<?> unsubscribeMessage)`	Unregister a subscription.

- Method Detail
  - registerSubscription
```
void registerSubscription(Message<?> subscribeMessage)
```
    Register a subscription represented by the given message.
    Parameters:
    subscribeMessage - the subscription request
  - unregisterSubscription
```
void unregisterSubscription(Message<?> unsubscribeMessage)
```
    Unregister a subscription.
    Parameters:
    unsubscribeMessage - the request to unsubscribe
  - unregisterAllSubscriptions
```
void unregisterAllSubscriptions(String sessionId)
```
    Remove all subscriptions associated with the given sessionId.
  - findSubscriptions
```
MultiValueMap<String,String> findSubscriptions(Message<?> message)
```
    Find all subscriptions that should receive the given message. The map returned is safe to iterate and will never be modified.
    Parameters:
    message - the message
    Returns:
    a MultiValueMap with sessionId-subscriptionId pairs (possibly empty)