Interface PrivilegedAction<T>
public interface PrivilegedAction<T>
A computation to be performed with privileges enabled. The computation is performed by invoking AccessController.doPrivileged
on the PrivilegedAction
object. This interface is used only for computations that do not throw checked exceptions; computations that throw checked exceptions must use PrivilegedExceptionAction
instead.
- Since:
- 1.2
- See Also:
-
AccessController
,AccessController.doPrivileged(PrivilegedAction)
,PrivilegedExceptionAction
Method Summary
Modifier and Type | Method | Description |
---|---|---|
T | run() | Performs the computation. |
Method Detail
run
T run()
Performs the computation. This method will be called by AccessController.doPrivileged
after enabling privileges.
- Returns:
- a class-dependent value that may represent the results of the computation. Each class that implements
PrivilegedAction
should document what (if anything) this value represents. - See Also:
-
AccessController.doPrivileged(PrivilegedAction)
,AccessController.doPrivileged(PrivilegedAction, AccessControlContext)