What is binding (JavaServer Faces technology) ?

In JavaServer Faces (JSF) technology, binding refers to the process of connecting a component in the user interface (UI) to a backing bean property. This binding allows the values entered or displayed in the UI components to be associated with properties in the backing bean.

There are two types of binding in JSF:

1. Value Binding: It binds the value of a UI component to a bean property. This means that the value displayed in the UI component is directly linked to the property in the backing bean. When the user interacts with the component, the corresponding property in the bean is updated, and vice versa.Example in JSF code:
   xml

   <h:inputText value="#{bean.property}" />

2. Action Binding: It binds an action (such as a button click) in the UI component to a method in the backing bean. When the associated action is triggered, the specified method in the backing bean is executed.Example in JSF code:
   xml

   <h:commandButton action="#{bean.method}" />


Binding is a powerful feature in JSF as it facilitates the seamless communication between the UI components and the backing bean, allowing for a clean separation of concerns in web applications. It helps in implementing the Model-View-Controller (MVC) architecture, where the UI is the View, the backing bean is the Controller, and the data is the Model.