ProviderSelectionPolicy (Helidon 1.4.12 API)

All Known Implementing Classes:

CompositeProviderSelectionPolicy
```
public interface ProviderSelectionPolicy
```
A policy that selects provider to use. To support loading from class name, this class must have a public constructor that accepts ProviderSelectionPolicy.Providers as a single parameter, or a public constructor that accepts ProviderSelectionPolicy.Providers and Config if you want your instance to be configurable. To support configuring through a builder pattern, you must provide to security builder a function that accepts ProviderSelectionPolicy.Providers and returns an instance of this interface, which could be the constructor itself.

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static interface`	`ProviderSelectionPolicy.Providers`	Interface that is passed to a constructor of a `ProviderSelectionPolicy` implementation to supply all configured providers from security.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`List<OutboundSecurityProvider>`	`selectOutboundProviders()`	Specific method for outbound providers, as we have an option to choose the first outbound provider that matches the current request.
`<T extends SecurityProvider> Optional<T>`	`selectProvider(Class<T> providerType)`	Select a provider instance of the type defined that this policy has configured as the default.
`<T extends SecurityProvider> Optional<T>`	`selectProvider(Class<T> providerType, String requestedName)`	Select a provider instance of the type defined that this policy finds for the requested name.

- Method Detail
  - selectProvider
```
<T extends SecurityProvider> Optional<T> selectProvider(Class<T> providerType)
```
    Select a provider instance of the type defined that this policy has configured as the default.
    
    Type Parameters:
    
    T - type of provider
    
    Parameters:
    
    providerType - type of provider (one of AuthenticationProvider, AuthorizationProvider)
    
    Returns:
    
    security provider instance
  - selectOutboundProviders
```
List<OutboundSecurityProvider> selectOutboundProviders()
```
    Specific method for outbound providers, as we have an option to choose the first outbound provider that matches the current request.
    
    Returns:
    
    list of outbound provider to choose from (may be empty)
  - selectProvider
```
<T extends SecurityProvider> Optional<T> selectProvider(Class<T> providerType,
                                                        String requestedName)
```
    Select a provider instance of the type defined that this policy finds for the requested name.
    
    Type Parameters:
    
    T - type of provider
    
    Parameters:
    
    providerType - type of provider (one of AuthenticationProvider, AuthorizationProvider or OutboundSecurityProvider)
    
    requestedName - explicit provider name to find
    
    Returns:
    
    security provider instance