JavaTM 2 Platform Std. Ed. v1.6.0
java.security
Class GuardedObject
java.lang.Object
java.security.GuardedObject
- All Implemented Interfaces:
- Serializable
public class GuardedObject - extends Object
- implements Serializable
A GuardedObject is an object that is used to protect access to
another object.
A GuardedObject encapsulates a target object and a Guard object,
such that access to the target object is possible
only if the Guard object allows it.
Once an object is encapsulated by a GuardedObject,
access to that object is controlled by the getObject
method, which invokes the
checkGuard method on the Guard object that is
guarding access. If access is not allowed,
an exception is thrown.
- See Also:
Guard ,
Permission ,
Serialized Form
Constructor Summary |
GuardedObject(Object object,
Guard guard)
Constructs a GuardedObject using the specified object and guard. |
Method Summary |
Object |
getObject()
Retrieves the guarded object, or throws an exception if access
to the guarded object is denied by the guard. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
GuardedObject
public GuardedObject(Object object,
Guard guard)
- Constructs a GuardedObject using the specified object and guard.
If the Guard object is null, then no restrictions will
be placed on who can access the object.
- Parameters:
object - the object to be guarded.guard - the Guard object that guards access to the object.
getObject
public Object getObject()
throws SecurityException
- Retrieves the guarded object, or throws an exception if access
to the guarded object is denied by the guard.
- Returns:
- the guarded object.
- Throws:
SecurityException - if access to the guarded object is
denied.
Copyright 2003 Sun Microsystems, Inc. All rights reserved
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