Module java.base
Package java.util

Interface ServiceLoader.Provider<S>

  • Type Parameters:
    S - The service type
    All Superinterfaces:
    Enclosing class:

    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.

    • 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.

        The provider type
      • get

        S get()
        Returns an instance of the provider.
        Specified by:
        get in interface Supplier<S>
        An instance of the provider.
        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.