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Copyright © 2006 Sun Microsystems, Inc. All rights reserved.

java.security
Interface PrivilegedAction

public interface PrivilegedAction

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.

See Also:

AccessController, AccessController.doPrivileged(PrivilegedAction), PrivilegedExceptionAction

Method Summary

Object

run() Performs the computation.

Method Detail

run

public Object 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)