managed bean

By convention, the name of a managed bean is the same as the class name, with the first letter of the class name converted to lowercase.

I've barely scratched the surface of JSF 2 features so far, with managed bean annotations, simplified navigation, and support for resources.

To refer the HelloWorld managed bean through a unified EL expression, it needs to be annotated with the qualifier @javax. inject. Named.

Underpinning everything you have read so far is the concept of a managed bean, or MBean.

Shale Test also has integration with Spring Framework to allow a JSF component to be bound as a managed bean or as a Spring bean.

Because HelloWorld is now a container managed bean, the container is supposed to provide a HelloWorld bean instance.

Once that setup is complete, you can shift your native JSF application to Seam one managed bean at a time.

According to the CDI specification, having a no-arg default constructor makes this class eligible to be a managed bean.

Add the varValidCodesRootBean in the page data to be a JSF managed bean and set the scope as application.

Configure the varBrokerUpdateRootBean in the page data to be a JSF managed bean, and set the scope as session (Figure 11).

Developing a managed bean with Seam is almost shockingly easy compared to the typical JSF configuration process.

Figure 1 shows a partial listing of the Java classes that are controlled by the managed bean facility in JSF.

This managed bean exposes a collection of golf course objects and then responds to actions for managing those instances.

When the eager attribute is true, JSF creates the managed bean at startup and places it in application scope.

This aspect also defines helper methods using inter-type declarations on managed bean classes.

The simple HelloWorld example in Listing 1 shows how a managed bean is accessed through EL expression within a ZUL file.

The scope of this managed bean should be 'session'.

As you can see from figure 5, you can also populate a table directly from the managed bean.

The managed bean creation facility of JSF automatically creates a bean, initializes it, and stores it in the proper scope when referenced.

You can use the JSF-EL (expression language) to bind JSF components to managed bean properties.

The type is the fully qualified class name of the managed bean.

You can call your managed bean anything you want.

This means the value contained in the flight variable is assigned to the managed bean, flightBean.

The second uses a method of a bean as its action, but the "config" managed bean does not have a method named "outcome. "

You can put this managed bean into session or even application scope, so that it is created only once.

The following simple example shows how to access a CDI managed bean from a ZUL file.