org.apache.shardingsphere.mode.manager.cluster.coordinator.registry

接口 GovernanceWatcher<T>

类型参数:

T - type of event

所有已知实现类:

ComputeNodeStateChangedWatcher, GlobalRuleChangedWatcher, MetaDataChangedWatcher, PropertiesChangedWatcher, ShardingSphereDataChangedWatcher, StorageNodeStateChangedWatcher

public interface GovernanceWatcher<T>

Governance watcher.

方法概要

限定符和类型	方法和说明
Optional<T>	createGovernanceEvent(DataChangedEvent event) Create governance event.
Collection<String>	getWatchingKeys(String databaseName) Get watching keys.
Collection<DataChangedEvent.Type>	getWatchingTypes() Get watching types.

方法详细资料

getWatchingKeys

Collection<String> getWatchingKeys(String databaseName)

Get watching keys.

参数:

databaseName - database name

返回:

watching keys

getWatchingTypes

Collection<DataChangedEvent.Type> getWatchingTypes()

Get watching types.

返回:

watching types

createGovernanceEvent

Optional<T> createGovernanceEvent(DataChangedEvent event)

Create governance event.

参数:

event - registry center data changed event

返回:

governance event