Guard (Java 2 Platform SE 5.0) (original) (raw)

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

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 objectobject.

Method Detail

checkGuard

void checkGuard(Object object) throws SecurityException

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

Parameters:

object - the object being protected by the guard.

Throws:

[SecurityException](../../java/lang/SecurityException.html "class in java.lang") - if access is denied.

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.