18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.security;
  27 
  28 
  29 /**
  30  * A computation to be performed with privileges enabled, that throws one or
  31  * more checked exceptions.  The computation is performed by invoking
  32  * {@code AccessController.doPrivileged} on the
  33  * {@code PrivilegedExceptionAction} object.  This interface is
  34  * used only for computations that throw checked exceptions;
  35  * computations that do not throw
  36  * checked exceptions should use {@code PrivilegedAction} instead.
  37  *

  38  * @see AccessController
  39  * @see AccessController#doPrivileged(PrivilegedExceptionAction)
  40  * @see AccessController#doPrivileged(PrivilegedExceptionAction,
  41  *                                              AccessControlContext)
  42  * @see PrivilegedAction
  43  */
  44 
  45 public interface PrivilegedExceptionAction<T> {
  46     /**
  47      * Performs the computation.  This method will be called by
  48      * {@code AccessController.doPrivileged} after enabling privileges.
  49      *
  50      * @return a class-dependent value that may represent the results of the
  51      *         computation.  Each class that implements
  52      *         {@code PrivilegedExceptionAction} should document what
  53      *         (if anything) this value represents.
  54      * @throws Exception an exceptional condition has occurred.  Each class
  55      *         that implements {@code PrivilegedExceptionAction} should
  56      *         document the exceptions that its run method can throw.
  57      * @see AccessController#doPrivileged(PrivilegedExceptionAction)

  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.security;
  27 
  28 
  29 /**
  30  * A computation to be performed with privileges enabled, that throws one or
  31  * more checked exceptions.  The computation is performed by invoking
  32  * {@code AccessController.doPrivileged} on the
  33  * {@code PrivilegedExceptionAction} object.  This interface is
  34  * used only for computations that throw checked exceptions;
  35  * computations that do not throw
  36  * checked exceptions should use {@code PrivilegedAction} instead.
  37  *
  38  * @since 1.2
  39  * @see AccessController
  40  * @see AccessController#doPrivileged(PrivilegedExceptionAction)
  41  * @see AccessController#doPrivileged(PrivilegedExceptionAction,
  42  *                                              AccessControlContext)
  43  * @see PrivilegedAction
  44  */
  45 
  46 public interface PrivilegedExceptionAction<T> {
  47     /**
  48      * Performs the computation.  This method will be called by
  49      * {@code AccessController.doPrivileged} after enabling privileges.
  50      *
  51      * @return a class-dependent value that may represent the results of the
  52      *         computation.  Each class that implements
  53      *         {@code PrivilegedExceptionAction} should document what
  54      *         (if anything) this value represents.
  55      * @throws Exception an exceptional condition has occurred.  Each class
  56      *         that implements {@code PrivilegedExceptionAction} should
  57      *         document the exceptions that its run method can throw.
  58      * @see AccessController#doPrivileged(PrivilegedExceptionAction)