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

  • Method Details

    • 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.