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authorBoris Kolpackov <boris@codesynthesis.com>2011-07-04 17:53:47 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2011-07-04 17:53:47 +0200
commit683eccc6887a7fa34d58e873e19b48405ebf420a (patch)
treecf1aeb14d1d5f3b61efa61554b9336ad87b333f6 /common/callback/driver.cxx
parentec1213138d592489175f2246201c5e65c90af0a5 (diff)
Implement support for database operations callbacks
New object pragma: callback. New test: common/callback. New manual section: 10.1.4, "callback".
Diffstat (limited to 'common/callback/driver.cxx')
-rw-r--r--common/callback/driver.cxx160
1 files changed, 160 insertions, 0 deletions
diff --git a/common/callback/driver.cxx b/common/callback/driver.cxx
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+++ b/common/callback/driver.cxx
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+// file : common/callback/driver.cxx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+// Test database operation callbacks.
+//
+
+#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;
+
+const char* events[] =
+{
+ "pre_persist",
+ "post_persist",
+ "pre_load",
+ "post_load",
+ "pre_update",
+ "post_update",
+ "pre_erase",
+ "post_erase"
+};
+
+void object::
+db_callback (callback_event e, database&)
+{
+ cout << " " << events[e] << " " << id_ << endl;
+}
+
+void object::
+db_callback (callback_event e, database&) const
+{
+ cout << " " << events[e] << " " << id_ << " const" << endl;
+}
+
+int
+main (int argc, char* argv[])
+{
+ try
+ {
+ auto_ptr<database> db (create_database (argc, argv));
+
+ // Persist.
+ //
+ cout << "persist" << endl;
+ {
+ object o1 (1, 1);
+ object const o2 (2, 2);
+ transaction t (db->begin ());
+ db->persist (o1);
+ db->persist (&o2);
+ t.commit ();
+ }
+ cout << "***" << endl;
+
+ // Load.
+ //
+ cout << "load" << endl;
+ {
+ transaction t (db->begin ());
+ auto_ptr<object> o1 (db->load<object> (1));
+ object o2;
+ db->load<object> (2, o2);
+ t.commit ();
+ }
+ cout << "***" << endl;
+
+ // Query.
+ //
+ cout << "query" << endl;
+ {
+ typedef odb::query<object> query;
+ typedef odb::result<object> result;
+
+ transaction t (db->begin ());
+ result r (db->query<object> (query::id < 3));
+
+ for (result::iterator i (r.begin ()); i != r.end (); ++i)
+ {
+ if (i->id_ > 3) // Load.
+ break;
+ }
+
+ t.commit ();
+ }
+ cout << "***" << endl;
+
+ // Update.
+ //
+ cout << "update" << endl;
+ {
+ transaction t (db->begin ());
+ auto_ptr<object> o1 (db->load<object> (1));
+ auto_ptr<object> o2 (db->load<object> (2));
+ o1->data++;
+ o2->data++;
+ db->update (o1.get ());
+ db->update (static_cast<object const&> (*o2));
+ t.commit ();
+ }
+ cout << "***" << endl;
+
+ // Erase.
+ //
+ cout << "erase" << endl;
+ {
+ transaction t (db->begin ());
+ auto_ptr<object> o1 (db->load<object> (1));
+ auto_ptr<object> o2 (db->load<object> (2));
+ db->erase (static_cast<object const*> (o1.get ()));
+ db->erase (*o2);
+ t.commit ();
+ }
+ cout << "***" << endl;
+
+ // Delayed (recursive) load.
+ //
+ cout << "delayed load" << endl;
+ {
+ {
+ object o1 (1, 1);
+ object o2 (2, 2);
+ object o3 (3, 2);
+
+ o1.pobj = &o2;
+ o2.pobj = &o3;
+
+ transaction t (db->begin ());
+ db->persist (o1);
+ db->persist (o2);
+ db->persist (o3);
+ t.commit ();
+ }
+
+ {
+ transaction t (db->begin ());
+ auto_ptr<object> o1 (db->load<object> (1));
+ t.commit ();
+ }
+ }
+ cout << "***" << endl;
+ }
+ catch (const odb::exception& e)
+ {
+ cerr << e.what () << endl;
+ return 1;
+ }
+}