All Packages  Class Hierarchy  This Package  Previous  Next  Index  

Interface java.security.Guard

public interface Guard

This interface represents a guard. A guard is an object that is used to protect access to another object.

This interface contains a single method, checkGuard, with a single object argument. checkGuard is invoked (by the GuardedObject getObject method) to determine whether or not to allow access to the object.

See Also:

GuardedObject

checkGuard(Object)

Determines whether or not to allow access to the guarded object object.

public abstract void checkGuard(Object object) throws SecurityException

Determines whether or not to allow access to the guarded object object. Returns silently if access is allowed. Otherwise, throws a SecurityException.

Parameters:

object - the object being protected by the guard.

Throws: SecurityException

if access is denied.

All Packages  Class Hierarchy  This Package  Previous  Next  Index