Add dynamic multi-database query support

1 files changed, 90 insertions, 0 deletions

diff --git a/odb/query-dynamic.txx b/odb/query-dynamic.txx
new file mode 100644
index 0000000..cf7401d
--- /dev/null
+++ b/odb/query-dynamic.txx
@@ -0,0 +1,90 @@
+// file      : odb/query-dynamic.txx
+// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+namespace odb
+{
+  // query_base
+  //
+  template <typename T>
+  void query_base::
+  append_val (const T& val, const native_column_info* c)
+  {
+    clause_.push_back (clause_part ());
+    clause_part& p (clause_.back ());
+
+    p.kind = clause_part::kind_param_val;
+    p.data = 0; // In case new below throws.
+    p.native_info = c;
+
+    query_param* qp (new (details::shared) val_query_param<T> (val));
+    p.data = reinterpret_cast<std::size_t> (qp);
+  }
+
+  // query_column
+  //
+  template <typename T>
+  query_base query_column<T>::
+  in (const T& v1, const T& v2) const
+  {
+    query_base q (native_info);
+    q.append_val (v1, native_info);
+    q.append_val (v2, native_info);
+    q.append (query_base::clause_part::op_in, 2);
+    return q;
+  }
+
+  template <typename T>
+  query_base query_column<T>::
+  in (const T& v1, const T& v2, const T& v3) const
+  {
+    query_base q (native_info);
+    q.append_val (v1, native_info);
+    q.append_val (v2, native_info);
+    q.append_val (v3, native_info);
+    q.append (query_base::clause_part::op_in, 3);
+    return q;
+  }
+
+  template <typename T>
+  query_base query_column<T>::
+  in (const T& v1, const T& v2, const T& v3, const T& v4) const
+  {
+    query_base q (native_info);
+    q.append_val (v1, native_info);
+    q.append_val (v2, native_info);
+    q.append_val (v3, native_info);
+    q.append_val (v4, native_info);
+    q.append (query_base::clause_part::op_in, 4);
+    return q;
+  }
+
+  template <typename T>
+  query_base query_column<T>::
+  in (const T& v1, const T& v2, const T& v3, const T& v4, const T& v5) const
+  {
+    query_base q (native_info);
+    q.append_val (v1, native_info);
+    q.append_val (v2, native_info);
+    q.append_val (v3, native_info);
+    q.append_val (v4, native_info);
+    q.append_val (v5, native_info);
+    q.append (query_base::clause_part::op_in, 5);
+    return q;
+  }
+
+  template <typename T>
+  template <typename I>
+  query_base query_column<T>::
+  in_range (I i, I end) const
+  {
+    query_base q (native_info);
+
+    std::size_t n (0);
+    for (; i != end; ++i, ++n)
+      q.append_val (*i, native_info);
+
+    q.append (query_base::clause_part::op_in, n);
+    return q;
+  }
+}