org.apache.druid.discovery

Interface DruidNodeDiscovery.Listener

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

Modifier and Type	Method and 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.

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.