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diff --git a/TAO/TAO_IDL/be_include/be_visitor_union.h b/TAO/TAO_IDL/be_include/be_visitor_union.h
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+++ b/TAO/TAO_IDL/be_include/be_visitor_union.h
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+/* -*- c++ -*- */
+//
+// $Id$
+//
+
+// ============================================================================
+//
+// = LIBRARY
+//    TAO IDL
+//
+// = FILENAME
+//    be_visitor_union.h
+//
+// = DESCRIPTION
+//    Concrete visitor for the Union class
+//
+// = AUTHOR
+//    Aniruddha Gokhale
+//
+// ============================================================================
+
+#if !defined (TAO_BE_VISITOR_UNION_H)
+#define TAO_BE_VISITOR_UNION_H
+
+#include "be_visitor.h"
+#include "be_visitor_scope.h"
+
+class be_visitor_union : public be_visitor_scope
+{
+  //
+  // = TITLE
+  //   be_visitor_union
+  //
+  // = DESCRIPTION
+  //   This is the base visitor for union
+  //
+  //
+public:
+  be_visitor_union (be_visitor_context *ctx);
+  // constructor
+
+  ~be_visitor_union (void);
+  // destructor
+
+  virtual int visit_union (be_union *node);
+  // visit union. We provide code for this method in the derived class
+
+  // =visit operations on syntactically valid elements in our scope
+
+  virtual int visit_union_branch (be_union_branch *node);
+  // visit union_branch
+};
+
+class be_visitor_union_ch : public be_visitor_union
+{
+  //
+  // = TITLE
+  //   be_visitor_union_ch
+  //
+  // = DESCRIPTION
+  //   This is a concrete visitor to generate the client header for union
+  //
+  //
+public:
+  be_visitor_union_ch (be_visitor_context *ctx);
+  // constructor
+
+  ~be_visitor_union_ch (void);
+  // destructor
+
+  virtual int visit_union (be_union *node);
+  // visit union. We provide code for this method in the derived class
+
+};
+
+class be_visitor_union_ci : public be_visitor_union
+{
+  //
+  // = TITLE
+  //   be_visitor_union_ci
+  //
+  // = DESCRIPTION
+  //   This is a concrete visitor to generate the client inline for union
+  //
+  //
+public:
+  be_visitor_union_ci (be_visitor_context *ctx);
+  // constructor
+
+  ~be_visitor_union_ci (void);
+  // destructor
+
+  virtual int visit_union (be_union *node);
+  // visit union. We provide code for this method in the derived class
+
+};
+
+class be_visitor_union_cs : public be_visitor_union
+{
+  //
+  // = TITLE
+  //   be_visitor_union_cs
+  //
+  // = DESCRIPTION
+  //   This is a concrete visitor to generate the client stubs for union
+  //
+  //
+public:
+  be_visitor_union_cs (be_visitor_context *ctx);
+  // constructor
+
+  ~be_visitor_union_cs (void);
+  // destructor
+
+  virtual int visit_union (be_union *node);
+  // visit union. We provide code for this method in the derived class
+
+};
+
+class be_visitor_union_discriminant_ch : public be_visitor_decl
+{
+  //
+  // = TITLE
+  //   be_visitor_union_discriminant_ch
+  //
+  // = DESCRIPTION
+  //   This is a concrete visitor to generate the client header for union
+  //   discriminant
+  //
+  //
+public:
+  be_visitor_union_discriminant_ch (be_visitor_context *ctx);
+  // constructor
+
+  ~be_visitor_union_discriminant_ch (void);
+  // destructor
+
+  virtual int visit_enum (be_enum *node);
+  // visit an enum
+
+  virtual int visit_predefined_type (be_predefined_type *node);
+  // visit a predefined type
+
+  virtual int visit_typedef (be_typedef *node);
+  // visit a typedef node
+};
+
+class be_visitor_union_discriminant_ci : public be_visitor_decl
+{
+  //
+  // = TITLE
+  //   be_visitor_union_discriminant_ci
+  //
+  // = DESCRIPTION
+  //   This is a concrete visitor to generate the client inline for union
+  //   discriminant
+  //
+  //
+public:
+  be_visitor_union_discriminant_ci (be_visitor_context *ctx);
+  // constructor
+
+  ~be_visitor_union_discriminant_ci (void);
+  // destructor
+
+  virtual int visit_enum (be_enum *node);
+  // visit an enum
+
+  virtual int visit_predefined_type (be_predefined_type *node);
+  // visit a predefined type
+
+  virtual int visit_typedef (be_typedef *node);
+  // visit a typedef node
+};
+
+class be_visitor_union_discriminant_cs : public be_visitor_decl
+{
+  //
+  // = TITLE
+  //   be_visitor_union_discriminant_cs
+  //
+  // = DESCRIPTION
+  //   This is a concrete visitor to generate the client stubs for union
+  //   discriminant
+  //
+  //
+public:
+  be_visitor_union_discriminant_cs (be_visitor_context *ctx);
+  // constructor
+
+  ~be_visitor_union_discriminant_cs (void);
+  // destructor
+
+  virtual int visit_enum (be_enum *node);
+  // visit an enum. Required to generate the typecode for an enum definition
+  // appearing side the union
+
+};
+
+#endif // TAO_BE_VISITOR_UNION_H