org.apache.shardingsphere.governance.core.registry.metadata.watcher

Class MetaDataChangedWatcher

java.lang.Object

org.apache.shardingsphere.governance.core.registry.metadata.watcher.MetaDataChangedWatcher

All Implemented Interfaces:

GovernanceWatcher<GovernanceEvent>

public final class MetaDataChangedWatcher
extends Object
implements GovernanceWatcher<GovernanceEvent>

Metadata changed watcher.

Constructor Summary

Constructors

Constructor and Description
MetaDataChangedWatcher()

Method Summary

Modifier and Type	Method and Description
Optional<GovernanceEvent>	createGovernanceEvent(DataChangedEvent event) Create governance event.
Collection<String>	getWatchingKeys(Collection<String> schemaNames) Get watching keys.
Collection<DataChangedEvent.Type>	getWatchingTypes() Get watching types.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MetaDataChangedWatcher

public MetaDataChangedWatcher()

Method Detail

getWatchingKeys

public Collection<String> getWatchingKeys(Collection<String> schemaNames)

Description copied from interface: GovernanceWatcher

Get watching keys.

Specified by:

getWatchingKeys in interface GovernanceWatcher<GovernanceEvent>

Parameters:

schemaNames - schema names

Returns:

watching keys

getWatchingTypes

public Collection<DataChangedEvent.Type> getWatchingTypes()

Description copied from interface: GovernanceWatcher

Get watching types.

Specified by:

getWatchingTypes in interface GovernanceWatcher<GovernanceEvent>

Returns:

watching types

createGovernanceEvent

public Optional<GovernanceEvent> createGovernanceEvent(DataChangedEvent event)

Description copied from interface: GovernanceWatcher

Create governance event.

Specified by:

createGovernanceEvent in interface GovernanceWatcher<GovernanceEvent>

Parameters:

event - registry center data changed event

Returns:

governance event