DruidNodeDiscovery.Listener (druid-server 29.0.1 API)

Enclosing interface:

DruidNodeDiscovery
```
public static interface DruidNodeDiscovery.Listener
```
Listener for watching nodes in a DruidNodeDiscovery instance obtained via DruidNodeDiscoveryProvider.getXXX(). DruidNodeDiscovery implementation should assume that Listener is not thread-safe and never call methods in Listener concurrently. Implementation of Listener must ensure to not do any time consuming work or block in any of the methods.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`void`	`nodesAdded(Collection<DiscoveryDruidNode> nodes)`
`void`	`nodesRemoved(Collection<DiscoveryDruidNode> nodes)`
`default void`	`nodeViewInitialized()`	Called once when the underlying cache in the DruidNodeDiscovery implementation has been initialized.
`default void`	`nodeViewInitializedTimedOut()`	Called once when the underlying cache in the DruidNodeDiscovery implementation has timed out trying to initialize.

- Method Detail
  - nodesAdded
```
void nodesAdded(Collection<DiscoveryDruidNode> nodes)
```
  - nodesRemoved
```
void nodesRemoved(Collection<DiscoveryDruidNode> nodes)
```
  - nodeViewInitialized
```
default void nodeViewInitialized()
```
    Called once when the underlying cache in the DruidNodeDiscovery implementation has been initialized.
  - nodeViewInitializedTimedOut
```
default void nodeViewInitializedTimedOut()
```
    Called once when the underlying cache in the DruidNodeDiscovery implementation has timed out trying to initialize.