[OmniFaces utilities] The
addFlashInfo()
method adds a flash scoped INFO faces message to the given
clientId, with the given message body which is formatted with the given parameters. Use this when you need to display the message after a redirect.
Method:
Usage:
The
information stored in flash scope "survives" one redirect. Let's
suppose that the below code is in page A.xhtml:
<h:form>
<h:commandButton value="Click
Me!" action="#{myBean.myAction()}"/>
</h:form>
The myAction() method
perform some tasks, including generating a global INFO parameterized messages
and redirecting to page, B.xhtml:
import
org.omnifaces.util.Messages;
...
// INFO
message
private
static final String FILES_UPLOADED = "The {0} file and associated
extensions ({1}, {2} and {3}) were successfully uploaded !";
...
// for a
certain component, replace null with clientId
public
String myAction() {
// add an
INFO message as a global message in flash scope
Object[]
params = new Object[]{"SHP", "SHX", "DBF",
"SBN"};
Messages.addFlashInfo(null,
FILES_UPLOADED, "SHP", "SHX", "DBF",
"SBN");
// or
Messages.addFlashInfo(null,
FILES_UPLOADED, params);
return
"B?faces-redirect=true";
}
Now, in
page B.xhtml, you will
see this message:
// INFO
message
The SHP file
and associated extensions (SHX, DBF and SBN) were successfully uploaded !
Note Don't
forget to use in page where the messages are displayed the <h:messages>, for
global messages, <h:message>, for component messages, or any other
approach capable to display the messages.