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diff --git a/ACE/ace/Method_Request.h b/ACE/ace/Method_Request.h
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+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file    Method_Request.h
+ *
+ *  $Id$
+ *
+ *  @author Andres Kruse <Andres.Kruse@cern.ch>
+ *  @author Douglas C. Schmidt <schmidt@cs.wustl.edu>
+ */
+//=============================================================================
+
+
+#ifndef ACE_METHOD_REQUEST_H
+#define ACE_METHOD_REQUEST_H
+
+#include /**/ "ace/pre.h"
+
+#include "ace/ACE_export.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#include "ace/Global_Macros.h"
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+/**
+ * @class ACE_Method_Request
+ *
+ * @brief Reifies a method into a request.  Subclasses must provide
+ * the necessary state and behavior.
+ *
+ * An ACE_Method_Request is inserted in an ACE_Activation_Queue,
+ * where it is subsequently removed by a scheduler object (often
+ * derived from ACE_Task), which invokes the @c call() method.
+ *
+ * This class is discussed in depth in the Active Object chapter
+ * of POSA2.
+ *
+ * @sa ACE_Activation_Queue
+ */
+class ACE_Export ACE_Method_Request
+{
+public:
+  // = Initialization and termination methods.
+  /// Constructor.
+  ACE_Method_Request (unsigned long priority = 0);
+
+  /// Destructor.
+  virtual ~ACE_Method_Request (void);
+
+  // = Accessors.
+  /// Get priority.
+  unsigned long priority (void) const;
+
+  /// Set priority.
+  /**
+   * Priority values are user-defined. The default (set in the constructor)
+   * is 0. The priority value is used in the ACE_Activation_Queue::enqueue()
+   * method to order the method requests in the queue by priority.
+   * 0 is the lowest priority.
+   *
+   * @param prio   unsigned long, the new priority value for this object.
+   *
+   * @sa ACE_Activation_Queue::enqueue
+   */
+  void priority (unsigned long prio);
+
+  // = Invocation method (must be overridden by subclasses).
+  /// Invoked by the scheduler to execute the request.
+  /**
+   * This method must be implemented by the subclass to perform the
+   * desired actions.
+   *
+   * @return int; not interpreted by ACE. The scheduler class must
+   *         decide the meaning of this return value and act on it
+   *         if needed.
+   */
+  virtual int call (void) = 0;
+
+private:
+
+  /// Disallow copying and assignment.
+  ACE_Method_Request (const ACE_Method_Request &);
+  void operator= (const ACE_Method_Request &);
+
+protected:
+  /// The priority of the request.
+  unsigned long priority_;
+
+};
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+
+#include /**/ "ace/post.h"
+#endif /* ACE_METHOD_REQUEST_H */