From 0b723322a611de83872dd83b55d2e10e8886a283 Mon Sep 17 00:00:00 2001
From: "Douglas B. Rumbaugh" <douglas@t480.douglasrumbaugh.com>
Date: Thu, 2 Nov 2023 08:01:45 -0400
Subject: started refactoring queries interface

---
 include/framework/QueryRequirements.h | 17 +++++++++++++++++
 include/framework/interface/Shard.h   |  6 ++++++
 2 files changed, 23 insertions(+)
 create mode 100644 include/framework/QueryRequirements.h

(limited to 'include/framework')

diff --git a/include/framework/QueryRequirements.h b/include/framework/QueryRequirements.h
new file mode 100644
index 0000000..ff4eaff
--- /dev/null
+++ b/include/framework/QueryRequirements.h
@@ -0,0 +1,17 @@
+/*
+ * include/framework/QueryRequirements.h
+ *
+ * Copyright (C) 2023 Douglas B. Rumbaugh <drumbaugh@psu.edu> 
+ *
+ * All rights reserved. Published under the Modified BSD License.
+ *
+ * A header file containing the necessary includes for Shard
+ * development.
+ *
+ */
+#pragma once
+
+#include "framework/structure/MutableBuffer.h"
+#include "framework/interface/Record.h"
+#include "framework/interface/Shard.h"
+#include "framework/interface/Query.h"
diff --git a/include/framework/interface/Shard.h b/include/framework/interface/Shard.h
index d3a6cf8..40a696b 100644
--- a/include/framework/interface/Shard.h
+++ b/include/framework/interface/Shard.h
@@ -33,4 +33,10 @@ concept ShardInterface = requires(S s, S **spp, void *p, bool b, size_t i) {
     {s.get_aux_memory_usage()} -> std::convertible_to<size_t>;
 };
 
+template <typename S, typename R>
+concept SortedShardInterface = ShardInterface<S> && requires(S s, R r, R *rp) {
+    {s.lower_bound(r)} -> std::convertible_to<size_t>;
+    {s.upper_bound(r)} -> std::convertible_to<size_t>;
+}
+
 }
-- 
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