1: /* PrivilegedExceptionAction.java -- Perform a privileged operation 2: Copyright (C) 1998, 2002 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: package java.security; 39: 40: /** 41: * This interface defines a method that is called by 42: * <code>AccessController.doPrivileged()</code> in order to perform a 43: * privileged operation with higher privileges enabled. This interface 44: * differs from <code>PrivilegedAction</code> in that the <code>run</code> 45: * method in this interface may throw a checked exception. 46: * 47: * @author Aaron M. Renn (arenn@urbanophile.com) 48: * @since 1.1 49: * @status updated to 1.5 50: */ 51: public interface PrivilegedExceptionAction<T> 52: { 53: /** 54: * This method performs an operation that requires higher privileges to 55: * successfully complete. It is called when a section of code invokes 56: * <code>AccessController.doPrivileged()</code>. 57: * 58: * @return obj An implementation defined return value 59: * @throws Exception An implementation specific exception 60: * @see AccessController#doPrivileged(PrivilegedExceptionAction) 61: * @see AccessController#doPrivileged(PrivilegedExceptionAction, 62: * AccessControlContext) 63: */ 64: T run() throws Exception; 65: } // interface PrivilegedExceptionAction