Guard (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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Java™ Platform
Standard Ed. 6

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java.security
Interface Guard

All Known Implementing Classes:: AllPermission, AudioPermission, AuthPermission, AWTPermission, BasicPermission, DelegationPermission, FilePermission, LoggingPermission, ManagementPermission, MBeanPermission, MBeanServerPermission, MBeanTrustPermission, NetPermission, Permission, PrivateCredentialPermission, PropertyPermission, ReflectPermission, RuntimePermission, SecurityPermission, SerializablePermission, ServicePermission, SocketPermission, SQLPermission, SSLPermission, SubjectDelegationPermission, UnresolvedPermission, 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

void checkGuard(Object object)
Determines whether or not to allow access to the guarded object object.

Method Summary
`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.