How to implement better OOPs
BasePage needs to know the implementing type for chaining:
/** * @param <T> The implementing type. */public abstract class BasePage<T extends BasePage<T>> {}Then, you could use:
public T clickGoBack() { return (T) this; }The problem here, is that this isn't necessarily an instance of T so the cast is not safe, for example with the following class:
public class Page1 extends BasePage<Page2> {}A solution is to ask the subclasses their this:
public abstract class BasePage<T extends BasePage<T>> { protected final WebDriver driver; public BasePage(WebDriver driver) { this.driver = driver; } public T clickGoBack() throws Exception{ driver.click(goBackButton); return getThis(); } protected abstract T getThis();}public class HomePage extends BasePage<HomePage> { public HomePage(WebDriver driver) { super(driver); } @Override protected HomePage getThis() { return this; }}