PrivilegedExceptionAction.java revision 2362
/*
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*
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
/**
* A computation to be performed with privileges enabled, that throws one or
* more checked exceptions. The computation is performed by invoking
* <code>AccessController.doPrivileged</code> on the
* <code>PrivilegedExceptionAction</code> object. This interface is
* used only for computations that throw checked exceptions;
* computations that do not throw
* checked exceptions should use <code>PrivilegedAction</code> instead.
*
* @see AccessController
* @see AccessController#doPrivileged(PrivilegedExceptionAction)
* @see AccessController#doPrivileged(PrivilegedExceptionAction,
* AccessControlContext)
* @see PrivilegedAction
*/
public interface PrivilegedExceptionAction<T> {
/**
* Performs the computation. This method will be called by
* <code>AccessController.doPrivileged</code> after enabling privileges.
*
* @return a class-dependent value that may represent the results of the
* computation. Each class that implements
* <code>PrivilegedExceptionAction</code> should document what
* (if anything) this value represents.
* @throws Exception an exceptional condition has occurred. Each class
* that implements <code>PrivilegedExceptionAction</code> should
* document the exceptions that its run method can throw.
* @see AccessController#doPrivileged(PrivilegedExceptionAction)
* @see AccessController#doPrivileged(PrivilegedExceptionAction,AccessControlContext)
*/
}