Displaying messages in ADF Page
In this
article, we shall see different ways of adding messages on ADF page.
Scenario 1:
Showing
message as pop up
Following
code can be used for displaying error message on ADF page as a pop up message
as shown in below screenshot:-
public String showMessage() {
// Below code shows message on the page as pop up
//SCENARIO 1: client Id is null,
as it is not associated to any UI component
FacesContext context = FacesContext.getCurrentInstance();
FacesMessage msg1 = new FacesMessage("This is sample
message");
// set severity of the message
msg1.setSeverity(FacesMessage.SEVERITY_ERROR);
context.addMessage(null,msg1 );
}
Scenario 2:
For displaying the message inline in the page i.e. as shown
in below screenshot,:-
Look for af:messages component in JSF page and make “inline” property to “True” as shown in below screenshot:-
Scenario3:
In this scenario we will be showing message attached to a UI
Component, in this case userName
Use below code for component specific message
public String
showMessage() {
//SCENARIO 2:
Message has to be associated with UI component
// Below code
show message on the page associated to User name input text
FacesContext context = FacesContext.getCurrentInstance();
FacesMessage
msg2 = new FacesMessage("This is sample message for name");
// set severity of the messagge
msg2.setSeverity(FacesMessage.SEVERITY_ERROR);
context.addMessage(getUserName().getClientId(),msg2 );
return
"success";
}
Scenario 4:
Displaying
detailed message with HTML content as shown below:-
Use below
code for displaying message in HTML format
public String
showMessage() {
//SCENARIO
4: Message has to be associated with UI
component and details shown in HTML
// Below
code show message on the page
FacesContext context = FacesContext.getCurrentInstance();
FacesMessage msg2 = new FacesMessage("This is sample message for
name");
// set severity of the message
msg2.setSeverity(FacesMessage.SEVERITY_ERROR);
msg2.setDetail("<html><body><p>If
you continously get this error, please contact System Administrator or log a ticket by
clicking on this link <a href=\"http://www.google.com\">Log Ticket</a></p></body></html>");
context.addMessage(getUserName().getClientId(),msg2 );
return
"success";
}
Very clearly explained.
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