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Java™ Platform Standard Ed. 6 |
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java.lang.Objectjava.security.GuardedObject
public class GuardedObject
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.
Guard
,
Permission
,
Serialized FormConstructor Summary | |
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GuardedObject(Object object,
Guard guard)
Constructs a GuardedObject using the specified object and guard. |
Method Summary | |
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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 |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public GuardedObject(Object object, Guard guard)
object
- the object to be guarded.guard
- the Guard object that guards access to the object.Method Detail |
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public Object getObject() throws SecurityException
SecurityException
- if access to the guarded object is
denied.
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Java™ Platform Standard Ed. 6 |
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