org.apache.avalon.fortress.util
Class Service

java.lang.Object
  org.apache.avalon.fortress.util.Service

public final class Service
extends Object

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

Version:

1.0

Author:

Avalon Development Team

Method Summary

static boolean	isClassPoolable(Class clazz) Provide a way to determine if a Class implements Poolable without requiring it to be in the classpath.
static Iterator	providers(Class klass) Get all the providers for the specified services.
static Iterator	providers(Class klass, ClassLoader loader) Get all the providers for the specified services.
static Iterator	providers(Class klass, ClassLoader loader, org.apache.avalon.framework.logger.Logger logger) Get all the providers for the specified services.

Methods inherited from class java.lang.Object

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

Method Detail

providers

public static Iterator providers(Class klass,
                                 ClassLoader loader,
                                 org.apache.avalon.framework.logger.Logger logger)

Get all the providers for the specified services.

Parameters:

klass - the interface Class

loader - the ClassLoader to be used.

logger - logger to use if any problems are encountered.

Returns:

an Iterator for the providers.

providers

public static Iterator providers(Class klass,
                                 ClassLoader loader)

Get all the providers for the specified services.

Parameters:

klass - the interface Class

loader - the ClassLoader to be used.

Returns:

an Iterator for the providers.

providers

public static Iterator providers(Class klass)

Get all the providers for the specified services.

Parameters:

klass - the interface Class

Returns:

an Iterator for the providers.

isClassPoolable

public static boolean isClassPoolable(Class clazz)

Provide a way to determine if a Class implements Poolable without requiring it to be in the classpath.

Parameters:

clazz - the class to test

Returns:

true if Poolable is in the classpath and the class implements Poolable