Module java.base

Package java.security

Interface Guard

All Known Implementing Classes:

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

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 to allow access to the object.

Since:

1.2

See Also:

• GuardedObject

Method Summary

Modifier and Type	Method	Description
void	checkGuard(Object object)	Determines whether to allow access to the guarded object object.

Method Details

checkGuard

void checkGuard(Object object)
         throws SecurityException

Determines whether 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.