Java Module java.base Package java.util Interface ServiceLoader.Provider<S>（JDK11）

153 阅读 0 评论 0 点赞

Type Parameters:

S - The service type

All Superinterfaces:

Supplier<S>

Enclosing class:

ServiceLoader<S>
```
public static interface ServiceLoader.Provider<S>
extends Supplier<S>
```
Represents a service provider located by ServiceLoader.
When using a loader's stream() method then the elements are of type Provider. This allows processing to select or filter on the provider class without instantiating the provider.

Since:

9

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`S`	`get()`	Returns an instance of the provider.
`Class<? extends S>`	`type()`	Returns the provider type.

- Method Detail
  - type
```
Class<? extends S> type()
```
    Returns the provider type. There is no guarantee that this type is accessible or that it has a public no-args constructor. The get() method should be used to obtain the provider instance.
    When a module declares that the provider class is created by a provider factory then this method returns the return type of its public static "provider()" method.
    
    Returns:
    
    The provider type
  - get
```
S get()
```
    Returns an instance of the provider.
    
    Specified by:
    
    get in interface Supplier<S>
    
    Returns:
    
    An instance of the provider.
    
    Throws:
    
    ServiceConfigurationError - If the service provider cannot be instantiated, or in the case of a provider factory, the public static "provider()" method returns null or throws an error or exception. The ServiceConfigurationError will carry an appropriate cause where possible.

微信小程序

微信扫一扫体验

微信公众账号

微信扫一扫加关注

发表
评论返回
顶部