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diff --git a/modules/CIAO/DAnCE/Plan_Generator/PCVisitorBase.h b/modules/CIAO/DAnCE/Plan_Generator/PCVisitorBase.h
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+++ b/modules/CIAO/DAnCE/Plan_Generator/PCVisitorBase.h
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+/* -*- C++ -*- */
+
+//========================================================================
+/**
+ *  file  PCVisitorBase.h
+ *
+ *  $Id$
+ *
+ *  This file contains the virtual base class for the PackageConfiguration
+ *  Visitor which is used to traverse the PackageConfiguration element
+ *  defined in the PackagingData.idl. The PackageConfiguration has a
+ *  number of sequence elements. This class actually implements the
+ *  operations which involve sequences and delegates the calls to
+ *  the operations which handle single elements from the sequence type.
+ *
+ *  author Stoyan Paunov <spaunov@isis.vanderbilt.edu>
+ */
+//========================================================================
+
+#ifndef PC_VISITOR_BASE_H
+#define PC_VISITOR_BASE_H
+
+#include /**/ "ace/pre.h"
+#include "ciao/DeploymentC.h"
+
+//========================================================================
+/**
+ *  class PCVisitorBase
+ *
+ *  This class is a virtual base class for the PackageConfiguration Visitor
+ *  The operation which deal with sequences are implemented here by means
+ *  of the visit_sequence function above, in order to make the logic of
+ *  derived classes easier to write. Writers of derived classes need only
+ *  overload the functions which deal with single elements. Sequences are
+ *  always handled here.
+ */
+//========================================================================
+
+
+class  PCVisitorBase
+{
+public:
+  /// Constructor
+  PCVisitorBase (void);
+
+  /// Destructor
+  virtual ~PCVisitorBase (void);
+
+  /// Function what dispatches sequences
+  template <typename SEQ>
+  friend void visit_sequence (SEQ &seq, PCVisitorBase& v);
+
+  /// A whole slew of overloaded routines for different IDL
+  /// data types part of the PackageConfiguration.
+
+  virtual
+  void Visit (Deployment::PackageConfiguration &pc) = 0;
+  void Visit (Deployment::PackageConfigurations &pcs);
+
+  /// ComponentPackageDescription descendents
+  virtual
+  void Visit (Deployment::ComponentPackageDescription &cpd) = 0;
+  void Visit (Deployment::ComponentPackageDescriptions &cpds);
+
+  virtual
+  void Visit (Deployment::ComponentInterfaceDescription &cid) = 0;
+  //void Visit (Deployment::ComponentInterfaceDescriptions &cids);
+
+  virtual
+  void Visit (Deployment::PackagedComponentImplementation &pci) = 0;
+  void Visit (Deployment::PackagedComponentImplementations &pcis);
+
+  virtual
+  void Visit (Deployment::ComponentImplementationDescription &cid) = 0;
+  //void Visit (Deployment::ComponentImplementationDescriptions &cids);
+
+  virtual
+  void Visit (Deployment::ComponentAssemblyDescription &cad) = 0;
+  void Visit (Deployment::ComponentAssemblyDescriptions &cads);
+
+  virtual
+  void Visit (Deployment::SubcomponentInstantiationDescription &sid) = 0;
+  void Visit (Deployment::SubcomponentInstantiationDescriptions &sids);
+
+  virtual
+  void Visit (Deployment::MonolithicImplementationDescription &mid) = 0;
+  void Visit (Deployment::MonolithicImplementationDescriptions &mids);
+
+  virtual
+  void Visit (Deployment::NamedImplementationArtifact &nia) = 0;
+  void Visit (Deployment::NamedImplementationArtifacts &nias);
+
+  virtual
+  void Visit (Deployment::ImplementationArtifactDescription &iad) = 0;
+  //void Visit (Deployment::ImplementationArtifactDescriptions &iads);
+
+  //ComponentPackageReference descendents
+  virtual
+  void Visit (Deployment::ComponentPackageReference &cpr) = 0;
+  void Visit (Deployment::ComponentPackageReferences &cprs);
+
+  //properties
+  virtual
+  void Visit (Deployment::AssemblyPropertyMapping &apm) = 0;
+  void Visit (Deployment::AssemblyPropertyMappings &apms);
+
+  virtual
+  void Visit (Deployment::Property &property) = 0;
+  void Visit (Deployment::Properties &properties);
+
+  //requirements & capabilities
+  virtual
+  void Visit (Deployment::Requirement &requirement) = 0;
+  void Visit (Deployment::Requirements &requirements);
+
+  virtual
+  void Visit (Deployment::Capability &capability) = 0;
+  void Visit (Deployment::Capabilities &capabilities);
+
+  virtual
+  void Visit (Deployment::ImplementationRequirement &ir) = 0;
+  void Visit (Deployment::ImplementationRequirements &irs);
+
+  virtual
+  void Visit (Deployment::ImplementationDependency &id) = 0;
+  void Visit (Deployment::ImplementationDependencies &ids);
+
+  //ports and connections
+  virtual
+  void Visit (Deployment::AssemblyConnectionDescription &acd) = 0;
+  void Visit (Deployment::AssemblyConnectionDescriptions &acds);
+
+  virtual
+  void Visit (Deployment::SubcomponentPortEndpoint &spe) = 0;
+  void Visit (Deployment::SubcomponentPortEndpoints &spes);
+
+  virtual
+  void Visit (Deployment::ComponentExternalPortEndpoint &cepe) = 0;
+  void Visit (Deployment::ComponentExternalPortEndpoints &cepes);
+};
+
+template <typename T>
+void Accept (PCVisitorBase &v, T& element_to_visit)
+{
+  v.Visit (element_to_visit);
+}
+
+/**
+ *  function - visit_sequence
+ *
+ *  This function is used to handle sequences of elements where each
+ *  element takes the form of a Visitor Node.
+ */
+template <typename SEQ>
+void visit_sequence (SEQ &seq, PCVisitorBase& v)
+{
+   CORBA::ULong const size = seq.length ();
+
+   for (CORBA::ULong i = 0; i < size; ++i)
+   {
+     Accept(v, seq[i]);
+   }
+}
+
+#if defined (__ACE_INLINE__)
+#include "PCVisitorBase.inl"
+#endif /* __ACE_INLINE__ */
+
+#include /**/ "ace/post.h"
+
+#endif /* PC_VISITOR_BASE_H */