gcc/libjava/java/security/PrivilegedAction.java

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

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package java.security;

/**
 * This interface specifes a single <code>run</code> method that
 * executes a privileged operation.  This method is called by
 * <code>AccessController.doPrivileged()</code> after that method
 * activiates the required privileges.
 *
 * @author Aaron M. Renn (arenn@urbanophile.com)
 * @see AccessController
 * @see PrivilegedExceptionAction
 * @since 1.1
 * @status updated to 1.4
 */
public interface PrivilegedAction
{
  /**
   * This method performs an operation that requires higher privileges to
   * perform.  It is called when a section of code invokes
   * <code>AccessController.doPrivileged()</code>.
   *
   * @return obj An implementation dependent return value
   * @see AccessController#doPrivileged(PrivilegedAction)
   * @see AccessController#doPrivileged(PrivilegedAction, AccessControlContext)
   */
  Object run();
} // interface PrivilegedAction