Practical RichFaces, Second Edition

CHAPTER 2 GETTING STARTED
request completes. JSF 2 provides two callback events, onevent and onerror, which allow you to invoke a
custom JavaScript during the Ajax request. They are described in Table 2-10.
Table 2-10. Standard Ajax request callback events
Attribute Description
onevent Name of JavaScript function to handle UI events.
onerror Name of JavaScript function to handle error events.
onevent consists of three sub-events, described in Table 2-11.
Table 2-11. onevent Sub-Events Descriptions
Event name Description
begin Occurs just before the Ajax request is fired.
complete Occurs right after the Ajax response completes but before the DOM update.
success Occurs after DOM update. In case of an error, this event will be replaced by the onerror
function call.
Let’s start with a simple example. The application looks like Figure 2-5.
Figure 2-5. A simple form with different colors
Listing 2-44 shows the JSF page.
Listing 2-44. Shows the JSF page
Listing 2-45 shows the managed bean.