com.wutka.util
Class ServiceRegistry

java.lang.Object
  |
  +--com.wutka.util.ServiceRegistry

public class ServiceRegistry

extends java.lang.Object

Provides a central location for application-wide services to be located by name. If a service is requested that hasn't been registered, the service registry attempts to load the service dynamically. To dynamically load a service, the service registry looks for a config item of the form xxxService where xxx is the name of the service requested. It expects the config item to be a fully-qualified class name (i.e. the package name is included) and will attempt to create a new instance of the class.

Field Summary

protected static java.util.Hashtable

services The table of registered services

Constructor Summary

ServiceRegistry()

Method Summary

static java.lang.Object	locateService(java.lang.String serviceName) Returns the registered service corresponding to serviceName.
static java.lang.Object	locateService(java.lang.String serviceName, boolean waitForService) Returns the registered service corresponding to serviceName.
static void	registerService(java.lang.String serviceName, java.lang.Object service) Registers a service

Methods inherited from class java.lang.Object

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

Field Detail

services

protected static java.util.Hashtable services

The table of registered services

Constructor Detail

ServiceRegistry

public ServiceRegistry()

Method Detail

locateService

public static java.lang.Object locateService(java.lang.String serviceName)

Returns the registered service corresponding to serviceName. If the service has not been registered, locateService attempts to dynamically load the service.

Parameters:

serviceName - The name of the service to search for

Returns:

The registered service, or null if none exists

locateService

public static java.lang.Object locateService(java.lang.String serviceName,
                                             boolean waitForService)

Returns the registered service corresponding to serviceName. If the service has not been registered, locateService attempts to dynamically load the service.

Parameters:

serviceName - The name of the service to search for

waitForService - If true, don't return until the service has been registered

Returns:

The registered service, or null if none exists

registerService

public static void registerService(java.lang.String serviceName,
                                   java.lang.Object service)

Registers a service

Parameters:

serviceName - The name of the service to register

service - The service to register