Add support for changing location that ODB views as class definition

This is useful for making third-party/system types into ODB composite
value types. New pragma: definition. New test: common/definition.

1 files changed, 55 insertions, 0 deletions

diff --git a/common/definition/driver.cxx b/common/definition/driver.cxx
new file mode 100644
index 0000000..d23b9e2
--- /dev/null
+++ b/common/definition/driver.cxx
@@ -0,0 +1,55 @@
+// file      : common/definition/driver.cxx
+// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+// Test overriding composite value definition point. This is primarily
+// useful to make composite values out of third-party types.
+//
+
+#include <memory>   // std::auto_ptr
+#include <cassert>
+#include <iostream>
+
+#include <odb/database.hxx>
+#include <odb/transaction.hxx>
+
+#include <common/common.hxx>
+
+#include "test.hxx"
+#include "test-odb.hxx"
+
+using namespace std;
+using namespace odb::core;
+
+int
+main (int argc, char* argv[])
+{
+  try
+  {
+    auto_ptr<database> db (create_database (argc, argv));
+
+    object o;
+    o.time.tv_sec = 1;
+    o.time.tv_usec = 1000;
+
+    {
+      transaction t (db->begin ());
+      db->persist (o);
+      t.commit ();
+    }
+
+    {
+      transaction t (db->begin ());
+      auto_ptr<object> p (db->load<object> (o.id));
+      t.commit ();
+
+      assert (p->time.tv_sec == o.time.tv_sec &&
+              p->time.tv_usec == o.time.tv_usec);
+    }
+  }
+  catch (const odb::exception& e)
+  {
+    cerr << e.what () << endl;
+    return 1;
+  }
+}