程序包 com.alibaba.nacos.naming.consistency

接口 ConsistencyService

所有已知子接口:

PersistentConsistencyService

所有已知实现类:

BasePersistentServiceProcessor, PersistentConsistencyServiceDelegateImpl, PersistentServiceProcessor, StandalonePersistentServiceProcessor

public interface ConsistencyService

Consistence service for all implementations to derive.

We announce this consistency service to decouple the specific consistency implementation with business logic. User should not be aware of what consistency protocol is being used.

In this way, we also provide space for user to extend the underlying consistency protocols, as long as they obey our consistency baseline.

从以下版本开始:

1.0.0

作者:

nkorange

方法概要

修饰符和类型	方法	说明
Datum	get(java.lang.String key)	Get a data from Nacos cluster.
java.util.Optional<java.lang.String>	getErrorMsg()	Get the error message of the consistency protocol.
boolean	isAvailable()	Tell the status of this consistency service.
void	listen(java.lang.String key, RecordListener listener)	Listen for changes of a data.
void	put(java.lang.String key, Record value)	Put a data related to a key to Nacos cluster.
void	remove(java.lang.String key)	Remove a data from Nacos cluster.
void	unListen(java.lang.String key, RecordListener listener)	Cancel listening of a data.

方法详细资料

put

void put(java.lang.String key,
         Record value)
  throws com.alibaba.nacos.api.exception.NacosException

Put a data related to a key to Nacos cluster.

参数:

key - key of data, this key should be globally unique

value - value of data

抛出:

com.alibaba.nacos.api.exception.NacosException - nacos exception

remove

void remove(java.lang.String key)
     throws com.alibaba.nacos.api.exception.NacosException

Remove a data from Nacos cluster.

参数:

key - key of data

抛出:

com.alibaba.nacos.api.exception.NacosException - nacos exception

get

Datum get(java.lang.String key)
   throws com.alibaba.nacos.api.exception.NacosException

Get a data from Nacos cluster.

参数:

key - key of data

返回:

data related to the key

抛出:

com.alibaba.nacos.api.exception.NacosException - nacos exception

listen

void listen(java.lang.String key,
            RecordListener listener)
     throws com.alibaba.nacos.api.exception.NacosException

Listen for changes of a data.

参数:

key - key of data

listener - callback of data change

抛出:

com.alibaba.nacos.api.exception.NacosException - nacos exception

unListen

void unListen(java.lang.String key,
              RecordListener listener)
       throws com.alibaba.nacos.api.exception.NacosException

Cancel listening of a data.

参数:

key - key of data

listener - callback of data change

抛出:

com.alibaba.nacos.api.exception.NacosException - nacos exception

getErrorMsg

java.util.Optional<java.lang.String> getErrorMsg()

Get the error message of the consistency protocol.

返回:

the consistency protocol error message.

isAvailable

boolean isAvailable()

Tell the status of this consistency service.

返回:

true if available