io.shardingjdbc.orchestration.reg.api

接口 RegistryCenter

所有超级接口:

AutoCloseable

所有已知实现类:

EtcdRegistryCenter, ZookeeperRegistryCenter

public interface RegistryCenter
extends AutoCloseable

Registry center.

作者:

zhangliang

方法概要

方法

限定符和类型	方法和说明
String	get(String key) Get data from registry center.
List<String>	getChildrenKeys(String key) Get node's sub-nodes list.
String	getDirectly(String key) Get data from registry center directly.
boolean	isExisted(String key) Adjust data is existed or not.
void	persist(String key, String value) Persist data.
void	persistEphemeral(String key, String value) Persist ephemeral data.
void	update(String key, String value) Update data.
void	watch(String key, EventListener eventListener) Watch key or path of the registry.

从接口继承的方法 java.lang.AutoCloseable

close

方法详细资料

get

String get(String key)

Get data from registry center.

Maybe use cache if existed.

参数:

key - key of data

返回:

value of data

getDirectly

String getDirectly(String key)

Get data from registry center directly.

Cannot use cache.

参数:

key - key of data

返回:

value of data

isExisted

boolean isExisted(String key)

Adjust data is existed or not.

参数:

key - key of data

返回:

data is existed or not

getChildrenKeys

List<String> getChildrenKeys(String key)

Get node's sub-nodes list.

参数:

key - key of data

返回:

sub-nodes name list

persist

void persist(String key,
           String value)

Persist data.

参数:

key - key of data

value - value of data

update

void update(String key,
          String value)

Update data.

参数:

key - key of data

value - value of data

persistEphemeral

void persistEphemeral(String key,
                    String value)

Persist ephemeral data.

参数:

key - key of data

value - value of data

watch

void watch(String key,
         EventListener eventListener)

Watch key or path of the registry.

参数:

key - key of data

eventListener - change listener