Interface PrivilegedExceptionAction<T>
public interface PrivilegedExceptionAction<T>
A computation to be performed with privileges enabled, that throws one or more checked exceptions. The computation is performed by invoking AccessController.doPrivileged
on the PrivilegedExceptionAction
object. This interface is used only for computations that throw checked exceptions; computations that do not throw checked exceptions should use PrivilegedAction
instead.
- Since:
- 1.2
- See Also:
-
AccessController
,AccessController.doPrivileged(PrivilegedExceptionAction)
,AccessController.doPrivileged(PrivilegedExceptionAction, AccessControlContext)
,PrivilegedAction
Method Summary
Modifier and Type | Method | Description |
---|---|---|
T | run() | Performs the computation. |
Method Detail
run
T run() throws Exception
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
PrivilegedExceptionAction
should document what (if anything) this value represents. - Throws:
-
Exception
- an exceptional condition has occurred. Each class that implementsPrivilegedExceptionAction
should document the exceptions that its run method can throw. - See Also:
-
AccessController.doPrivileged(PrivilegedExceptionAction)
,AccessController.doPrivileged(PrivilegedExceptionAction,AccessControlContext)