java.security

public Interface PrivilegedExceptionAction<T>

Known Direct Implementers

sun.security.action.OpenFileInputStreamAction, sun.security.ssl.SSLEngineImpl.DelegatedTask.DelegatedAction

Annotations

@FunctionalInterface

Type Parameters

<T>: the type of the result of running the computation

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 and Description
public T	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. run() Performs the computation.

Method Detail

run back to summary

run	back to summary
public T run() throws Exception Performs the computation. This method will be called by `AccessController.doPrivileged` after enabling privileges. Returns:T 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. Exceptions Exception: an exceptional condition has occurred. Each class that implements `PrivilegedExceptionAction` should document the exceptions that its run method can throw. See Also `AccessController#doPrivileged(PrivilegedExceptionAction)`, `AccessController#doPrivileged(PrivilegedExceptionAction, AccessControlContext)`

public T run() throws Exception

Performs the computation. This method will be called by AccessController.doPrivileged after enabling privileges.

Returns:T

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.

Exceptions

Exception:: an exceptional condition has occurred. Each class that implements PrivilegedExceptionAction should document the exceptions that its run method can throw.