WritableMetadataService (Apache Dubbo 2.7.13 API)

所有超级接口:

MetadataService

所有已知实现类:

AbstractAbstractWritableMetadataService, InMemoryWritableMetadataService
```
@SPI("default")
public interface WritableMetadataService
extends MetadataService
```
Local MetadataService that extends MetadataService and provides the modification, which is used for Dubbo's consumers and providers.

从以下版本开始:

2.7.5

字段概要
- 从接口继承的字段 org.apache.dubbo.metadata.MetadataService
  ALL_SERVICE_INTERFACES, ALL_SERVICE_NAMES, DEFAULT_EXTENSION, SERVICE_INTERFACE_NAME, VERSION

方法概要

所有方法静态方法实例方法抽象方法默认方法
修饰符和类型	方法	说明
`boolean`	`exportURL(URL url)`	Exports a `URL`
`static WritableMetadataService`	`getDefaultExtension()`	Get `the defautl extension` of `WritableMetadataService`
`void`	`publishServiceDefinition(URL providerUrl)`
`default String`	`serviceName()`	Gets the current Dubbo Service name
`boolean`	`subscribeURL(URL url)`	Subscribes a `URL`
`boolean`	`unexportURL(URL url)`	Unexports a `URL`
`boolean`	`unsubscribeURL(URL url)`	Unsubscribes a `URL`

从接口继承的方法 org.apache.dubbo.metadata.MetadataService
exportServiceDiscoveryMetadata, getAndListenServiceDiscoveryMetadata, getExportedURLs, getExportedURLs, getExportedURLs, getExportedURLs, getExportedURLs, getMetadataChangeListenerMap, getMetadataInfo, getMetadataInfos, getServiceDefinition, getServiceDefinition, getSubscribedURLs, version

- 方法详细资料
  - serviceName
```
default String serviceName()
```
    Gets the current Dubbo Service name
    
    指定者:
    
    serviceName 在接口中 MetadataService
    
    返回:
    
    non-null
  - exportURL
```
boolean exportURL(URL url)
```
    Exports a URL
    
    参数:
    
    url - a URL
    
    返回:
    
    If success , return true
  - unexportURL
```
boolean unexportURL(URL url)
```
    Unexports a URL
    
    参数:
    
    url - a URL
    
    返回:
    
    If success , return true
  - subscribeURL
```
boolean subscribeURL(URL url)
```
    Subscribes a URL
    
    参数:
    
    url - a URL
    
    返回:
    
    If success , return true
  - unsubscribeURL
```
boolean unsubscribeURL(URL url)
```
    Unsubscribes a URL
    
    参数:
    
    url - a URL
    
    返回:
    
    If success , return true
  - publishServiceDefinition
```
void publishServiceDefinition(URL providerUrl)
```
  - getDefaultExtension
```
static WritableMetadataService getDefaultExtension()
```
    Get the defautl extension of WritableMetadataService
    
    返回:
    
    non-null