MetadataServiceExporter (Apache Dubbo 3.0.1 API)

所有超级接口:

Comparable<Prioritized>, Prioritized

所有已知实现类:

ConfigurableMetadataServiceExporter
```
@SPI("local")
public interface MetadataServiceExporter
extends Prioritized
```
The exporter of MetadataService

从以下版本开始:

2.7.5

另请参阅:

MetadataService, export(), unexport()

字段概要
- 从接口继承的字段 org.apache.dubbo.common.lang.Prioritized
  COMPARATOR, MAX_PRIORITY, MIN_PRIORITY, NORMAL_PRIORITY

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
`MetadataServiceExporter`	`export()`	Exports the `MetadataService` as a Dubbo service
`static MetadataServiceExporter`	`getDefaultExtension()`	Get the default extension of `MetadataServiceExporter`
`List<URL>`	`getExportedURLs()`	Get the `URLs` that were exported
`static MetadataServiceExporter`	`getExtension(String metadataType)`	Get the extension of `MetadataServiceExporter` by the type.
`boolean`	`isExported()`	`MetadataService` is export or not
`default boolean`	`supports(String metadataType)`	Does current implementation support the specified metadata type?
`MetadataServiceExporter`	`unexport()`	Unexports the `MetadataService`

从接口继承的方法 org.apache.dubbo.common.lang.Prioritized
compareTo, getPriority

- 方法详细资料
  - export
```
MetadataServiceExporter export()
```
    Exports the MetadataService as a Dubbo service
    
    返回:
    
    itself
  - unexport
```
MetadataServiceExporter unexport()
```
    Unexports the MetadataService
    
    返回:
    
    itself
  - getExportedURLs
```
List<URL> getExportedURLs()
```
    Get the URLs that were exported
    
    返回:
    
    non-null
  - isExported
```
boolean isExported()
```
    MetadataService is export or not
    
    返回:
    
    if export() was executed, return true, or false
  - supports
```
default boolean supports(String metadataType)
```
    Does current implementation support the specified metadata type?
    
    参数:
    
    metadataType - the specified metadata type
    
    返回:
    
    If supports, return true, or false
    
    从以下版本开始:
    
    2.7.8
  - getExtension
```
static MetadataServiceExporter getExtension(String metadataType)
```
    Get the extension of MetadataServiceExporter by the type. If not found, return the default implementation
    
    参数:
    
    metadataType - the metadata type
    
    返回:
    
    non-null
    
    从以下版本开始:
    
    2.7.8
  - getDefaultExtension
```
static MetadataServiceExporter getDefaultExtension()
```
    Get the default extension of MetadataServiceExporter
    
    返回:
    
    non-null
    
    从以下版本开始:
    
    2.7.8