org.apache.neethi.util

Class Service

java.lang.Object

org.apache.neethi.util.Service

public final class Service
extends java.lang.Object

This class handles looking up service providers on the class path. It implements the system described in: JAR File Specification Under Service Provider. Note that this interface is very similar to the one they describe which seems to be missing in the JDK.

Version:

$Id$

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static java.util.Map<java.lang.String,java.util.List<?>>	instanceMap

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Service()

Method Summary

Modifier and Type	Method and Description
private static <T> java.util.List<T>	cast(java.util.List<?> p)
static <T> java.util.List<? extends T>	providers(java.lang.Class<T> cls) Returns an iterator where each element should implement the interface (or subclass the baseclass) described by cls.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

instanceMap

static java.util.Map<java.lang.String,java.util.List<?>> instanceMap

Constructor Detail

Service

private Service()

Method Detail

cast

private static <T> java.util.List<T> cast(java.util.List<?> p)

providers

public static <T> java.util.List<? extends T> providers(java.lang.Class<T> cls)

Returns an iterator where each element should implement the interface (or subclass the baseclass) described by cls. The Classes are found by searching the classpath for service files named: 'META-INF/services/<fully qualified classname> that list fully qualified classnames of classes that implement the service files classes interface. These classes must have default constructors.

Parameters:

cls - The class/interface to search for providers of.