Package org.jppf.utils

Class ServiceProviderHandler<T>

java.lang.Object
org.jppf.utils.ServiceProviderHandler<T>
Type Parameters:
T - the type of the SPI interface.
public class ServiceProviderHandler<T> extends Object
A utility class that handles a SPI mechanism. It loads all implementations of a service provider interface found in the classpath and provides access to them.
Author:
Laurent Cohen

  • Field Details

    • inf

      protected final Class<T> inf
      The interface to handle.

    • providers

      protected final List<T> providers
      The list of provider instances.

    • classLoader

      protected final ClassLoader classLoader
      The class loader used to lookup the service implementations.

  • Constructor Details

    • ServiceProviderHandler

      public ServiceProviderHandler(Class<T> inf)
      Parameters:
      inf - the service interface to handle.

    • ServiceProviderHandler

      public ServiceProviderHandler(Class<T> inf, ClassLoader classLoader)
      Parameters:
      inf - the service interface to handle.
      classLoader - the class loader used to lookup the service implementations.

  • Method Details

    • addProvider

      public void addProvider(T provider)
      Add a providers to the list of providers.
      Parameters:
      provider - the provider to add.

    • removeProvider

      public void removeProvider(T provider)
      Remove a listener from the list of providers.
      Parameters:
      provider - the provider to remove.

    • removeAllProviders

      public void removeAllProviders()
      Remove all providers from the list of providers.

    • getProviders

      public List<T> getProviders()
      Get all the rpoviders loaded by htis handler.
      Returns:
      a List of provider implementations.

    • loadProviders

      public void loadProviders()
      Load all provider instances found in the class path via a service definition.