What is the advantages of using binding attribute in JSF? [duplicate]

Answer 1

With binding attribute you are mapping the actual component and NOT the component's value. For e.g the property in backing bean for your sample looks like below

UIInput htmlInputText= null;
...
public void setHtmlInputText(UIInput userNoComponent) {
  this.userNoComponent = userNoComponent;
}
public UIInput getHtmlInputText() {
  return userNoComponent;
} 

Binding a component instance to a bean property has these advantages:

• The backing bean can programmatically modify component attributes.
• The backing bean can instantiate
  components rather than let the page
  author do so.

Find more details in this tutorial