EventSourceDialectHandler (DPWS 5.1.0 API)

All Superinterfaces:

Interceptor

All Known Implementing Classes:

ActionBasedEventSource, GenericEventSource
```
public interface EventSourceDialectHandler
extends Interceptor
```
Callback interface for the management of subscriptions of a specific filter dialect.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`String`	`getDialect()`	This function shall return the handled filter dialect.
`void`	`init(Subscriptions subscriptions)`	Called once for a filter dialect handler when the EventSourceInterceptorDispatcher service starts.
`void`	`setStale(SourceSubscriptionManager subscriptionManager)`	Called when a subscription has expired.
`void`	`subscribe(SourceSubscriptionManager subscriptionManager)`	Called on an incoming subscribe request.
`void`	`unsubscribe(SourceSubscriptionManager subscriptionManager)`	Called on an incoming unsubscribe request.

- Method Detail
  - init
```
void init(Subscriptions subscriptions)
```
    Called once for a filter dialect handler when the EventSourceInterceptorDispatcher service starts.
    This function is guaranteed to be called before any other callback of this interface is called.
    The subscriptions are managed by the EventSourceInterceptorDispatcher!
    
    Parameters:
    
    subscriptions - the subscription registry that handles all subscriptions for the filter dialect
  - subscribe
```
void subscribe(SourceSubscriptionManager subscriptionManager)
```
    Called on an incoming subscribe request.
    
    Parameters:
    
    subscriptionManager - the subscription manager for this subscription.
  - unsubscribe
```
void unsubscribe(SourceSubscriptionManager subscriptionManager)
```
    Called on an incoming unsubscribe request.
    
    Parameters:
    
    subscriptionManager - the subscription manager for this subscription.
  - setStale
```
void setStale(SourceSubscriptionManager subscriptionManager)
```
    Called when a subscription has expired.
    
    Parameters:
    
    subscriptionManager - the subscription manager for this subscription.
  - getDialect
```
String getDialect()
```
    This function shall return the handled filter dialect.
    It is used by the dispatcher helping to assign subscription activity.
    
    Returns:
    
    the filter dialect handled by this instance.