instance « Bean « JSF Q&A

1. How to enforce jsf to create new instance of bean instead of throwing NullPointerException?

I'm almost sure that I do something wrong and thus the question's title is a bit incorrect. I have a form with several fields for creating a new User-objects (fields like login, ...

2. Whats the correct way to create multiple instances of managed beans in JSF 2.0

If I want to create more than one instance of managed bean in JSF 2.0, under different names in the same scope, how should I proceed? Ideally, I want the equivilant ...

3. Correct way of retrieving the bean instance from context

HI, We are using the following code to get the managed bean instance from the context.

Is it the correct way of doing it?. If multiple users access the same bean what will ...

4. JSF - Difference in getting bean instance

HI, There are many ways to get the bean instances from the JSF context. In the following two way:

Bean bean = (Bean) request.getAttribute("beanName");
What is the difference in above two ways. In which ...

5. How to add multiple instances of JSF 2 managed beans to Java Collection?

I'm trying to wrap my head around some basic JSF 2 concepts. For instance, if I have a managed bean, Bean1:

public class Bean1 {
    private String foo;

6. To get current Instance of the session scoped bean in Jsf 2.0

i referred to this question and i've a similar problem JSF - Get the SessionScoped Bean instance I want to get the current instance of a managed bean in another ...

11. Different Managed Bean instances

12. jsf bean instance in servlet

13. Initializing request scoped managed bean instance

I need some advice on design choices available managed bean initiallization: My managed bean backs a JSF page that has both user input fields and Lists which drive the drop down choices presented to user. I'm populating the List values and initial user values from DB in the constructor of the Managed Bean. (I can also use @PostConstruct but its the ...

14. Need to get the current Instance of one backing bean into another

I have an editorBean: public class EditorBean { private String value; public void setValue(String value) { this.value = value; } public String getValue() { return value; } } And the other bean is also managed and has a method called htmlTable that takes no parameters but returns String type. Now what I want to do is when my editor pops up ...

15. Correct way of retrieving the bean instance

The primary benefits of IoC are that are that you don't have to design the bean for a single platform. Instead, you design them as POJOs and let the platform itself manage them. This contributes to code reusability and enhanced testability, since POJOs can be unit-tested in isolation without setting up a complicated runtime environment and can also be wired into ...