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diff --git a/TAO/orbsvcs/orbsvcs/Event/EC_Kokyu_Filter_Builder.h b/TAO/orbsvcs/orbsvcs/Event/EC_Kokyu_Filter_Builder.h
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+++ b/TAO/orbsvcs/orbsvcs/Event/EC_Kokyu_Filter_Builder.h
@@ -0,0 +1,86 @@
+// -*- C++ -*-
+/**
+ *  @file   EC_Kokyu_Filter_Builder.h
+ *
+ *  $Id$
+ *
+ *  @author Bryan Thrall (thrall@cs.wustl.edu)
+ *
+ * Based on previous work by Carlos O'Ryan (coryan@cs.wustl.edu) and
+ * Tim Harrison (harrison@cs.wustl.edu) and other members of the DOC group.
+ * More details can be found in:
+ *
+ * http://doc.ece.uci.edu/~coryan/EC/index.html
+ */
+
+#ifndef TAO_EC_KOKYU_FILTER_BUILDER_H
+#define TAO_EC_KOKYU_FILTER_BUILDER_H
+#include /**/ "ace/pre.h"
+
+#include "orbsvcs/Event/EC_Filter_Builder.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#include "orbsvcs/Event/rtkokyu_event_export.h"
+
+TAO_BEGIN_VERSIONED_NAMESPACE_DECL
+
+class TAO_EC_Filter;
+class TAO_EC_Event_Channel_Base;
+
+/**
+ * @class TAO_EC_Kokyu_Filter_Builder
+ *
+ * @brief Implement a builder for the fundamental filters.
+ *
+ * The sched filtering mechanisms in the Event channel
+ * (source/type based filtering + disjunctions and conjunctions)
+ * are constructed using this class.
+ */
+class TAO_RTKokyuEvent_Export TAO_EC_Kokyu_Filter_Builder : public TAO_EC_Filter_Builder
+{
+public:
+  /// constructor.
+  TAO_EC_Kokyu_Filter_Builder (TAO_EC_Event_Channel_Base* ec);
+
+  /// destructor...
+  virtual ~TAO_EC_Kokyu_Filter_Builder (void);
+
+  // = The TAO_EC_Filter_Builder methods...
+  TAO_EC_Filter* build (TAO_EC_ProxyPushSupplier *supplier,
+                        RtecEventChannelAdmin::ConsumerQOS& qos) const;
+
+private:
+  /// Recursively build the filter tree.
+  TAO_EC_Filter* recursive_build (TAO_EC_ProxyPushSupplier *supplier,
+                                  RtecEventChannelAdmin::ConsumerQOS& qos,
+                                  CORBA::ULong& pos,
+                                  RtecScheduler::Scheduler_ptr scheduler,
+                                  RtecScheduler::handle_t parent_info) const;
+
+  /// Build the name recursively...
+  void recursive_name (RtecEventChannelAdmin::ConsumerQOS& qos,
+                       CORBA::ULong& pos,
+                       RtecScheduler::Scheduler_ptr scheduler,
+                       ACE_CString &name) const;
+
+  /// Count the number of children of the current node, i.e. until a
+  /// conjunction or disjunction starts.
+  CORBA::ULong count_children (RtecEventChannelAdmin::ConsumerQOS& qos,
+                               CORBA::ULong pos) const;
+
+private:
+  /// The event channel.
+  TAO_EC_Event_Channel_Base* event_channel_;
+};
+
+TAO_END_VERSIONED_NAMESPACE_DECL
+
+#if defined (__ACE_INLINE__)
+#include "orbsvcs/Event/EC_Kokyu_Filter_Builder.inl"
+#endif /* __ACE_INLINE__ */
+
+#include /**/ "ace/post.h"
+#endif /* TAO_EC_KOKYU_FILTER_BUILDER_H */