path: root/libjava/java/security/PrivilegedExceptionAction.java

/* PrivilegedExceptionAction.java -- Perform a privileged operation
   Copyright (C) 1998, 2002 Free Software Foundation, Inc.

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permission to link this library with independent modules to produce an
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package java.security;

/**
 * This interface defines a method that is called by
 * <code>AccessController.doPrivileged()</code> in order to perform a
 * privileged operation with higher privileges enabled.  This interface
 * differs from <code>PrivilegedAction</code> in that the <code>run</code>
 * method in this interface may throw a checked exception.
 *
 * @author Aaron M. Renn (arenn@urbanophile.com)
 * @since 1.1
 * @status updated to 1.4
 */
public interface PrivilegedExceptionAction
{
  /**
   * This method performs an operation that requires higher privileges to
   * successfully complete.  It is called when a section of code invokes
   * <code>AccessController.doPrivileged()</code>.
   *
   * @return obj An implementation defined return value
   * @throws Exception An implementation specific exception
   * @see AccessController#doPrivileged(PrivilegedExceptionAction)
   * @see AccessController#doPrivileged(PrivilegedExceptionAction,
   *                                    AccessControlContext)
   */
  Object run() throws Exception;
} // interface PrivilegedExceptionAction