From 5c4194e7cd800c8cd232f92a63dbd8e10b935340 Mon Sep 17 00:00:00 2001
From: Varun Agrawal <varagrawal@gmail.com>
Date: Fri, 3 Jan 2025 13:13:51 -0500
Subject: [PATCH] add serialization code to TableFactor

---
 gtsam/discrete/TableFactor.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/gtsam/discrete/TableFactor.h b/gtsam/discrete/TableFactor.h
index 5ddb4ab43..a2fdb4d32 100644
--- a/gtsam/discrete/TableFactor.h
+++ b/gtsam/discrete/TableFactor.h
@@ -31,6 +31,12 @@
 #include <utility>
 #include <vector>
 
+#if GTSAM_ENABLE_BOOST_SERIALIZATION
+#include <gtsam/base/MatrixSerialization.h>
+
+#include <boost/serialization/nvp.hpp>
+#endif
+
 namespace gtsam {
 
 class DiscreteConditional;
@@ -342,6 +348,19 @@ class GTSAM_EXPORT TableFactor : public DiscreteFactor {
   double error(const HybridValues& values) const override;
 
   /// @}
+
+ private:
+#if GTSAM_ENABLE_BOOST_SERIALIZATION
+  /** Serialization function */
+  friend class boost::serialization::access;
+  template <class ARCHIVE>
+  void serialize(ARCHIVE& ar, const unsigned int /*version*/) {
+    ar& BOOST_SERIALIZATION_BASE_OBJECT_NVP(Base);
+    ar& BOOST_SERIALIZATION_NVP(sparse_table_);
+    ar& BOOST_SERIALIZATION_NVP(denominators_);
+    ar& BOOST_SERIALIZATION_NVP(sorted_dkeys_);
+  }
+#endif
 };
 
 // traits