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diff --git a/TAO/orbsvcs/orbsvcs/Event/EC_Conjunction_Filter.h b/TAO/orbsvcs/orbsvcs/Event/EC_Conjunction_Filter.h
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+++ b/TAO/orbsvcs/orbsvcs/Event/EC_Conjunction_Filter.h
@@ -0,0 +1,113 @@
+// -*- C++ -*-
+
+/**
+ *  @file   EC_Conjunction_Filter.h
+ *
+ *  $Id$
+ *
+ *  @author Carlos O'Ryan (coryan@cs.wustl.edu)
+ *
+ * Based on previous work by 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_CONJUNCTION_FILTER_H
+#define TAO_EC_CONJUNCTION_FILTER_H
+#include /**/ "ace/pre.h"
+
+#include "orbsvcs/Event/EC_Filter.h"
+#include /**/ "orbsvcs/Event/event_serv_export.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+TAO_BEGIN_VERSIONED_NAMESPACE_DECL
+
+/**
+ * @class TAO_EC_Conjunction_Filter
+ *
+ * @brief The conjunction filter.
+ *
+ * This filter waits until each one of its children has accepted
+ * at least one event.  Only in that case it accepts and publishes
+ * the sequence formed by all the children events.
+ *
+ * <H2>Memory Management</H2>
+ * It assumes ownership of the children.
+ */
+class TAO_RTEvent_Serv_Export TAO_EC_Conjunction_Filter : public TAO_EC_Filter
+{
+public:
+  /// Constructor. It assumes ownership of both the array and the
+  /// children.
+  TAO_EC_Conjunction_Filter (TAO_EC_Filter* children[],
+                             size_t n);
+
+  /// Destructor
+  virtual ~TAO_EC_Conjunction_Filter (void);
+
+  // = The TAO_EC_Filter methods, please check the documentation in
+  // TAO_EC_Filter.
+  virtual ChildrenIterator begin (void) const;
+  virtual ChildrenIterator end (void) const;
+  virtual int size (void) const;
+  virtual int filter (const RtecEventComm::EventSet& event,
+                      TAO_EC_QOS_Info& qos_info
+                      ACE_ENV_ARG_DECL);
+  virtual int filter_nocopy (RtecEventComm::EventSet& event,
+                             TAO_EC_QOS_Info& qos_info
+                             ACE_ENV_ARG_DECL);
+  virtual void push (const RtecEventComm::EventSet& event,
+                     TAO_EC_QOS_Info& qos_info
+                     ACE_ENV_ARG_DECL);
+  virtual void push_nocopy (RtecEventComm::EventSet& event,
+                            TAO_EC_QOS_Info& qos_info
+                            ACE_ENV_ARG_DECL);
+  virtual void clear (void);
+  virtual CORBA::ULong max_event_size (void) const;
+  virtual int can_match (const RtecEventComm::EventHeader& header) const;
+  virtual int add_dependencies (const RtecEventComm::EventHeader& header,
+                                const TAO_EC_QOS_Info &qos_info
+                                ACE_ENV_ARG_DECL);
+
+  typedef unsigned int Word;
+
+private:
+  /// Determine if all the children have received their events.
+  int all_received (void) const;
+
+  TAO_EC_Conjunction_Filter (const TAO_EC_Conjunction_Filter&);
+  TAO_EC_Conjunction_Filter& operator= (const TAO_EC_Conjunction_Filter&);
+
+private:
+  /// The children
+  TAO_EC_Filter** children_;
+
+  /// The number of children.
+  size_t n_;
+
+  /// The event we send up (once all the children have pushed theirs).
+  RtecEventComm::EventSet event_;
+
+  /**
+   * The number of words in the bit vector
+   */
+  size_t nwords_;
+
+  /**
+   * The bit vector to keep track of the children that have received
+   * their events.
+   */
+  Word* bitvec_;
+
+  /// The current child in the iteration, used in the push() method...
+  ChildrenIterator current_child_;
+};
+
+TAO_END_VERSIONED_NAMESPACE_DECL
+
+#include /**/ "ace/post.h"
+#endif /* TAO_EC_CONJUNCTION_FILTER_H */