java.security

Interface Guard

All Known Implementing Classes:

AllPermission, AudioPermission, AuthPermission, AWTPermission, BasicPermission, CardPermission, DelegationPermission, FilePermission, JAXBPermission, LinkPermission, LoggingPermission, ManagementPermission, MBeanPermission, MBeanServerPermission, MBeanTrustPermission, NetPermission, Permission, PrivateCredentialPermission, PropertyPermission, ReflectPermission, RuntimePermission, SecurityPermission, SerializablePermission, ServicePermission, SocketPermission, SQLPermission, SSLPermission, SubjectDelegationPermission, UnresolvedPermission, URLPermission, WebServicePermission

public interface Guard

This interface represents a guard, which 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

Method Summary

Modifier and Type	Method and Description
void	checkGuard(Object object) Determines whether or not to allow access to the guarded object object.

Method Detail

checkGuard

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.