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

This interface guards access to an object. The checkGuard( ) method is passed an object to which access has been requested. If access should be granted, checkGuard( ) should return silently. Otherwise, if access is denied, checkGuard( ) should throw a java.lang.SecurityException. The Guard object is used primarily by the GuardedObject class. Note that all Permission objects implement the Guard interface.

public interface 
Guard  {
// Public Instance Methods
void 
checkGuard (Object 
object ) throws SecurityException;  
}

Implementations

Permission

Passed To

GuardedObject.GuardedObject( )