Class Service

java.lang.Object
org.apache.commons.discovery.tools.Service
public class Service extends Object
[this was ServiceDiscovery12... the 1.1 versus 1.2 issue has been abstracted to org.apache.commons.discover.jdk.JDKHooks]

Implement the JDK1.3 'Service Provider' specification. ( http://java.sun.com/j2se/1.3/docs/guide/jar/jar.html )

This class supports any VM, including JDK1.1, via org.apache.commons.discover.jdk.JDKHooks. The caller will first configure the discoverer by adding ( in the desired order ) all the places to look for the META-INF/services. Currently we support loaders. The findResources() method will check every loader.

  • Constructor Details

    • Service

      protected Service()
      Construct a new service discoverer

  • Method Details

    • providers

      public static <T, S extends T> Enumeration<S> providers(Class<T> spiClass)
      as described in sun/jdk1.3.1/docs/guide/jar/jar.html#Service Provider, Except this uses Enumeration instead of Interator.
      Type Parameters:
      T - Service Provider Interface type
      S - Any type extends the SPI type
      Parameters:
      spiClass - Service Provider Interface Class
      Returns:
      Enumeration of class instances (S)

    • providers

      public static <T, S extends T> Enumeration<S> providers(SPInterface<T> spi, ClassLoaders loaders)
      This version lets you specify constructor arguments..
      Type Parameters:
      T - Service Provider Interface type
      S - Any type extends the SPI type
      Parameters:
      spi - SPI to look for and load.
      loaders - loaders to use in search. If null then use ClassLoaders.getAppLoaders().
      Returns:
      Enumeration of class instances (S)