DiscoveryListener (apollo-broker 1.7.1 API)

```
public interface DiscoveryListener
```
A listener of services being added or removed from a network

Methods
Modifier and Type	Method and Description
`void`	`onServiceAdd(DiscoveryEvent event)`
`void`	`onServiceRemove(DiscoveryEvent event)`

void onServiceAdd(DiscoveryEvent event)

void onServiceRemove(DiscoveryEvent event)

Interface DiscoveryListener