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diff --git a/ACE/examples/Web_Crawler/URL_Visitor_Factory.h b/ACE/examples/Web_Crawler/URL_Visitor_Factory.h
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+++ b/ACE/examples/Web_Crawler/URL_Visitor_Factory.h
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+/* -*- C++ -*- */
+
+//=============================================================================
+/**
+ *  @file    URL_Visitor_Factory.h
+ *
+ *  $Id$
+ *
+ *  @author Douglas C. Schmidt <schmidt@cs.wustl.edu>
+ */
+//=============================================================================
+
+
+#ifndef _URL_VISITOR_FACTORY_H
+#define _URL_VISITOR_FACTORY_H
+
+#include "URL_Visitor.h"
+#include "Command_Processor.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+#pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+/**
+ * @class URL_Visitor_Factory
+ *
+ * @brief Abstract base class that creates URL visitors.
+ *
+ * Subclasses define each of the Factory Methods to
+ * make the right objects, which all "vary" together.
+ */
+class URL_Visitor_Factory
+{
+public:
+
+  /// Destructor.
+  virtual ~URL_Visitor_Factory (void);
+
+  /// Factory Method that makes the appropriate type of <URL_Visitor>.
+  virtual URL_Visitor *make_visitor (void) = 0;
+
+  /// Factory Method that makes the appropriate type of
+  /// <Command_Processor>.
+  virtual Command_Processor *make_command_processor (void) = 0;
+};
+
+/**
+ * @class URL_Validation_Visitor_Factory
+ *
+ * @brief Create a URL visitor that validates URL links.
+ */
+class URL_Validation_Visitor_Factory : public URL_Visitor_Factory
+{
+public:
+  /// Factory Method that makes a <URL_Validation_Visitor>.
+  virtual URL_Visitor *make_visitor (void);
+
+  /// Factory Method that makes a <FIFO_Command_Processor>.
+  virtual Command_Processor *make_command_processor (void);
+
+
+};
+
+/**
+ * @class URL_Download_Visitor_Factory
+ *
+ * @brief Create a URL visitor that downloads URL links.
+ */
+class URL_Download_Visitor_Factory : public URL_Visitor_Factory
+{
+public:
+  /// Factory Method that makes a <URL_Download_Visitor>.
+  virtual URL_Visitor *make_visitor (void);
+
+  /// Factory Method that makes a <FIFO_Command_Processor>.
+  virtual Command_Processor *make_command_processor (void);
+};
+
+#endif /* _URL_VISITOR_FACTORY_H */