Java in a Nutshell, 5th Edition [Electronic resources] نسخه متنی

A
Callback of this type
represents a request to display text to the user. A callback handler
should call getMessage(
) and
display the returned string to the user. It should also call
getMessageType( ) and use the returned value
(which is one of the constants defined by the class) to indicate the
type or severity of the information.

Figure 19-12. javax.security.auth.callback.TextOutputCallback

public class

TextOutputCallback implements Callback, Serializable {
// Public Constructors
public

TextOutputCallback (int

messageType , String

message );
// Public Constants
public static final int

ERROR ; =2
public static final int

INFORMATION ; =0
public static final int

WARNING ; =1
// Public Instance Methods
public String

getMessage ( );
public int

getMessageType ( );
}