如何在selenium webdriver中使定位器通用

我使用下面的代码和类使用OOO使定位器通用。

LOGIN=id:login_id
PASSWORD=xpath://pwd_xpath

public static final String = LOGIN;

我有一个接口定位器工厂

public By getLocator(String locatorelement);

我有一些类,比如IDclass实现LocatorsFactory

@Override
    public By getLocator(String locatorElement) {
        return By.id(locatorElement);
    }

Properties p = new Properties();
    public LocatorsFactoryManager (String PropertiesFilePath){
          try {
            p.load(new FileInputStream(PropertiesFilePath));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public String getElement(String elementName){
        String element = p.getProperty(elementName);
        return element;
    }
    public LocatorsFactory getLocator(String locatorElement){
        String locator = p.getProperty(locatorElement);
        String locatorType = locator.split(":")[0];
        String locatorValue = locator.split(":")[1];
        LocatorsFactory lf = null;
        switch (locatorType.toLowerCase()){
        case "id" : new IDLocatorFactory();
                    break;
        }

我遇到的问题是如何将locatorValue传递给IDClass并使其工作,以及在为不同页面创建单独的对象类时如何调用ObjectConstant文件。