servicehandeler.java

本文首先介绍了这些考试系统的形成和发展过程

package net.robin.crm.ui;

import net.robin.crm.service.CRMService;
import net.robin.crm.service.CRMServiceFactory;
import net.robin.crm.service.ConfigException;
import net.robin.crm.service.InstanceExeption;
import net.robin.crm.service.ServiceException;

public class ServiceHandeler {
	
	private static ServiceHandeler instance; 
	
	private CRMService service;

	private ServiceHandeler() {
		super();
	}

	public static ServiceHandeler getInstance() {
		if(instance==null){
			instance = new ServiceHandeler();
		}
		return instance;
	}

	public CRMService getService() throws ConfigException, InstanceExeption, ServiceException {
		if(service == null){
			CRMServiceFactory factory = CRMServiceFactory.getInstance();
			service = factory.getCRMService();
		}
		return service;
	}

	
}