【简略工厂模式】示例代码

public class SWInfoFactory
{
    private static IInfo info;

    synchronized public static IInfo getInfo()
    {
        if (info == null)
        {
            try
            {
                Class c = Class.forName("com.sinocec.model.web.eq.Info");
                info = (IInfo) c.newInstance();
                LogFactory.getLog().info(new SWInfoFactory(), "获取IInfo类成功！");
            } catch (Exception e)
            {
                LogFactory.getLog().error(new Config(), "获取类 com.sinocec.model.cec.index.IInfo 失败！", e);
                return null;
            }
        }
        return info;
    }
}