Add support for embedded database schemas

New options: --schema-format, --default-schema. New example: schema/embedded.

1 files changed, 67 insertions, 0 deletions

diff --git a/odb/schema-catalog.cxx b/odb/schema-catalog.cxx
new file mode 100644
index 0000000..5332cce
--- /dev/null
+++ b/odb/schema-catalog.cxx
@@ -0,0 +1,67 @@
+// file      : odb/schema-catalog.cxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#include <map>
+#include <vector>
+
+#include <odb/exceptions.hxx>
+#include <odb/schema-catalog.hxx>
+#include <odb/schema-catalog-impl.hxx>
+
+using namespace std;
+
+namespace odb
+{
+  typedef void (*create_function) (database&);
+  typedef vector<create_function> create_functions;
+  struct schema_catalog_impl: map<string, create_functions> {};
+
+  schema_catalog_impl* schema_catalog_init::catalog = 0;
+  size_t schema_catalog_init::count = 0;
+
+  void schema_catalog::
+  create_schema (database& db, const string& name)
+  {
+    const schema_catalog_impl& c (*schema_catalog_init::catalog);
+
+    schema_catalog_impl::const_iterator i (c.find (name));
+
+    if (i == c.end ())
+      throw unknown_schema (name);
+
+    const create_functions& fs (i->second);
+
+    for (create_functions::const_iterator j (fs.begin ()), e (fs.end ());
+         j != e; ++j)
+      (*j) (db);
+  }
+
+  // schema_catalog_init
+  //
+  schema_catalog_init::
+  schema_catalog_init ()
+  {
+    if (count == 0)
+      catalog = new schema_catalog_impl;
+
+    ++count;
+  }
+
+  schema_catalog_init::
+  ~schema_catalog_init ()
+  {
+    if (--count == 0)
+      delete catalog;
+  }
+
+  // schema_catalog_entry
+  //
+  schema_catalog_entry::
+  schema_catalog_entry (const char* name, create_function entry)
+  {
+    schema_catalog_impl& c (*schema_catalog_init::catalog);
+    c[name].push_back (entry);
+  }
+}