OpenDatabase() public method

Opens a Database in this Environment
This is an overloaded function for OpenDatabase(name, 0).
public OpenDatabase ( short name ) : Database
name short
return Database
Ejemplo n.º 1
0
 private void OpenDatabaseNegative()
 {
     Upscaledb.Environment env = new Upscaledb.Environment();
     try {
         env.Create("ntest.db");
         Database db = env.OpenDatabase((short)99);
     }
     catch (DatabaseException e) {
         Assert.AreEqual(UpsConst.UPS_DATABASE_NOT_FOUND, e.ErrorCode);
     }
     env.Close();
 }
Ejemplo n.º 2
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        private Database OpenDatabase(string file)
        {
            List <Parameter> list = new List <Parameter>();

            Parameter param1 = new Parameter();

            param1.name  = UpsConst.UPS_PARAM_CACHESIZE;
            param1.value = 768 * 1024 * 1024;
            list.Add(param1);

            Upscaledb.Environment env = new Upscaledb.Environment();
            Database db = new Database();

            env.Open(file, 0, list.ToArray());
            db = env.OpenDatabase(1);
            db.SetCompareFunc(new CompareFunc(NumericalCompareFunc));
            return(db);
        }
Ejemplo n.º 3
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        private void CreateString()
        {
            Database db = new Database();

            Upscaledb.Environment env = new Upscaledb.Environment();
            try {
                env.Create("ntest.db");
                db = env.CreateDatabase(1);
                db.Close();
                env.Close();
                env.Open("ntest.db");
                db = env.OpenDatabase(1);
                db.Close();
                env.Close();
            }
            catch (DatabaseException e) {
                Assert.Fail("Unexpected exception " + e);
            }
        }
Ejemplo n.º 4
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        private void Cursor10000Test()
        {
            //create database
            Upscaledb.Environment env = new Upscaledb.Environment();
            env.Create("ntest.db");

            Parameter[] param = new Parameter[1];
            param[0]       = new Parameter();
            param[0].name  = UpsConst.UPS_PARAM_KEY_TYPE;
            param[0].value = UpsConst.UPS_TYPE_UINT64;
            Database db = env.CreateDatabase(1, 0, param);

            //insert records
            for (ulong i = 0; i < 10000; i++)
            {
                byte[] key    = BitConverter.GetBytes(i);
                byte[] record = new byte[20];
                db.Insert(key, record);
            }

            //close database
            db.Close();

            //reopen again
            db = env.OpenDatabase(1);
            Cursor cursor = new Cursor(db);

            cursor.MoveFirst();
            ulong firstKey = BitConverter.ToUInt64(cursor.GetKey(), 0);

            Assert.AreEqual((ulong)0, firstKey);

            cursor.MoveLast();
            ulong lastKey = BitConverter.ToUInt64(cursor.GetKey(), 0);

            Assert.AreEqual((ulong)9999, lastKey);

            //close database
            cursor.Close();
            db.Close();
            env.Close();
        }
Ejemplo n.º 5
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        private void EraseDatabase()
        {
            Upscaledb.Environment env = new Upscaledb.Environment();
            byte[] k = new byte[5];
            byte[] r = new byte[5];

            env.Create("ntest.db");
            Database db = env.CreateDatabase((short)13);

            db.Insert(k, r);
            db.Close();
            env.EraseDatabase((short)13);
            try {
                db = env.OpenDatabase((short)15);
            }
            catch (DatabaseException e) {
                Assert.AreEqual(UpsConst.UPS_DATABASE_NOT_FOUND, e.ErrorCode);
            }
            env.Close();
        }
Ejemplo n.º 6
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 private void CreateDatabaseShort()
 {
     Upscaledb.Environment env = new Upscaledb.Environment();
     byte[] k = new byte[5];
     byte[] r = new byte[5];
     try {
         env.Create("ntest.db");
         Database db = env.CreateDatabase((short)13);
         db.Insert(k, r);
         db.Close();
         db = env.OpenDatabase((short)13);
         byte[] f = db.Find(k);
         checkEqual(r, f);
         // db.Close();
         env.Close();
     }
     catch (DatabaseException e) {
         Assert.Fail("unexpected exception " + e);
     }
 }
Ejemplo n.º 7
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        private Database OpenDatabase(string file)
        {
            List<Parameter> list = new List<Parameter>();

            Parameter param1 = new Parameter();
            param1.name = UpsConst.UPS_PARAM_CACHESIZE;
            param1.value = 768 * 1024 * 1024;
            list.Add(param1);

            Upscaledb.Environment env = new Upscaledb.Environment();
            Database db = new Database();
            env.Open(file, 0, list.ToArray());
            db = env.OpenDatabase(1);
            db.SetCompareFunc(new CompareFunc(NumericalCompareFunc));
            return db;
        }
Ejemplo n.º 8
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        private void Cursor10000Test()
        {
            //create database
            Upscaledb.Environment env = new Upscaledb.Environment();
            env.Create("ntest.db");

            Parameter[] param = new Parameter[1];
            param[0] = new Parameter();
            param[0].name = UpsConst.UPS_PARAM_KEY_TYPE;
            param[0].value = UpsConst.UPS_TYPE_UINT64;
            Database db = env.CreateDatabase(1, 0, param);

            //insert records
            for (ulong i = 0; i < 10000; i++)
            {
                byte[] key = BitConverter.GetBytes(i);
                byte[] record = new byte[20];
                db.Insert(key, record);
            }

            //close database
            db.Close();

            //reopen again
            db = env.OpenDatabase(1);
            Cursor cursor = new Cursor(db);

            cursor.MoveFirst();
            ulong firstKey = BitConverter.ToUInt64(cursor.GetKey(), 0);
            Assert.AreEqual((ulong)0, firstKey);

            cursor.MoveLast();
            ulong lastKey = BitConverter.ToUInt64(cursor.GetKey(), 0);
            Assert.AreEqual((ulong)9999, lastKey);

            //close database
            cursor.Close();
            db.Close();
            env.Close();
        }
Ejemplo n.º 9
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 private void CreateString()
 {
     Database db = new Database();
     Upscaledb.Environment env = new Upscaledb.Environment();
     try {
         env.Create("ntest.db");
         db = env.CreateDatabase(1);
         db.Close();
         env.Close();
         env.Open("ntest.db");
         db = env.OpenDatabase(1);
         db.Close();
         env.Close();
     }
     catch (DatabaseException e) {
         Assert.Fail("Unexpected exception " + e);
     }
 }
Ejemplo n.º 10
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        static void Main(string[] args)
        {
            byte[] key                = new byte[5];
            byte[] record             = new byte[5];
            Upscaledb.Environment env = new Upscaledb.Environment();
            Database db               = new Database();

            /*
             * first, create a new Database
             */
            env.Create("test.db");
            db = env.CreateDatabase(1);

            /*
             * now we can insert, delete or lookup values in the Database
             *
             * for our test program, we just insert a few values, then look them
             * up, then delete them and try to look them up again (which will fail).
             */
            for (int i = 0; i < LOOP; i++)
            {
                key[0]    = (byte)i;
                record[0] = (byte)i;
                db.Insert(key, record);
            }

            /*
             * now look up all values
             */
            for (int i = 0; i < LOOP; i++)
            {
                key[0] = (byte)i;
                byte[] r = db.Find(key);

                /*
                 * check if the value is ok
                 */
                if (r[0] != (byte)i)
                {
                    Console.Out.WriteLine("db.Find() returned bad value");
                    return;
                }
            }

            /*
             * close the Database handle, then re-open it (just to demonstrate how
             * to open a Database file)
             */
            db.Close();
            env.Close();
            env.Open("test.db");
            db = env.OpenDatabase(1);

            /*
             * now erase all values
             */
            for (int i = 0; i < LOOP; i++)
            {
                key[0] = (byte)i;
                db.Erase(key);
            }

            /*
             * once more we try to find all values... every db.Find() call must
             * now fail with HAM_KEY_NOT_FOUND
             */
            for (int i = 0; i < LOOP; i++)
            {
                key[0] = (byte)i;

                try {
                    byte[] r = db.Find(key);
                }
                catch (DatabaseException e) {
                    if (e.ErrorCode != UpsConst.UPS_KEY_NOT_FOUND)
                    {
                        Console.Out.WriteLine("db.Find() returned error " + e);
                        return;
                    }
                }
            }

            /*
             * We're done! No need to close the Database handle - it's closed automatically
             */
            Console.Out.WriteLine("Success!");
        }
Ejemplo n.º 11
0
        static void Main(string[] args)
        {
            byte[] key = new byte[5];
            byte[] record = new byte[5];
            Upscaledb.Environment env = new Upscaledb.Environment();
            Database db = new Database();

            /*
             * first, create a new Database
             */
            env.Create("test.db");
            db = env.CreateDatabase(1);

            /*
             * now we can insert, delete or lookup values in the Database
             *
             * for our test program, we just insert a few values, then look them
             * up, then delete them and try to look them up again (which will fail).
             */
            for (int i = 0; i < LOOP; i++) {
                key[0] = (byte)i;
                record[0] = (byte)i;
                db.Insert(key, record);
            }

            /*
             * now look up all values
             */
            for (int i = 0; i < LOOP; i++) {
                key[0] = (byte)i;
                byte[] r = db.Find(key);

                /*
                 * check if the value is ok
                 */
                if (r[0] != (byte)i) {
                    Console.Out.WriteLine("db.Find() returned bad value");
                    return;
                }
            }

            /*
             * close the Database handle, then re-open it (just to demonstrate how
             * to open a Database file)
             */
            db.Close();
            env.Close();
            env.Open("test.db");
            db = env.OpenDatabase(1);

            /*
             * now erase all values
             */
            for (int i = 0; i < LOOP; i++) {
                key[0] = (byte)i;
                db.Erase(key);
            }

            /*
             * once more we try to find all values... every db.Find() call must
             * now fail with HAM_KEY_NOT_FOUND
             */
            for (int i = 0; i < LOOP; i++) {
                key[0] = (byte)i;

                try {
                    byte[] r = db.Find(key);
                }
                catch (DatabaseException e) {
                    if (e.ErrorCode != UpsConst.UPS_KEY_NOT_FOUND) {
                        Console.Out.WriteLine("db.Find() returned error " + e);
                        return;
                    }
                }
            }

            /*
             * We're done! No need to close the Database handle - it's closed automatically
             */
            Console.Out.WriteLine("Success!");
        }
Ejemplo n.º 12
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 private void RenameDatabase()
 {
     Upscaledb.Environment env = new Upscaledb.Environment();
     byte[] k = new byte[5];
     byte[] r = new byte[5];
     try {
         env.Create("ntest.db");
         Database db = env.CreateDatabase((short)13);
         db.Insert(k, r);
         db.Close();
         env.RenameDatabase((short)13, (short)15);
         db = env.OpenDatabase((short)15);
         byte[] f = db.Find(k);
         checkEqual(r, f);
         // db.Close();
         env.Close();
     }
     catch (DatabaseException e) {
         Assert.Fail("unexpected exception " + e);
     }
 }
Ejemplo n.º 13
0
 private void OpenDatabaseNegative()
 {
     Upscaledb.Environment env = new Upscaledb.Environment();
     try {
         env.Create("ntest.db");
         Database db = env.OpenDatabase((short)99);
     }
     catch (DatabaseException e) {
         Assert.AreEqual(UpsConst.UPS_DATABASE_NOT_FOUND, e.ErrorCode);
     }
     env.Close();
 }
Ejemplo n.º 14
0
        private void EraseDatabase()
        {
            Upscaledb.Environment env = new Upscaledb.Environment();
            byte[] k = new byte[5];
            byte[] r = new byte[5];

            env.Create("ntest.db");
            Database db = env.CreateDatabase((short)13);
            db.Insert(k, r);
            db.Close();
            env.EraseDatabase((short)13);
            try {
                db = env.OpenDatabase((short)15);
            }
            catch (DatabaseException e) {
                Assert.AreEqual(UpsConst.UPS_DATABASE_NOT_FOUND, e.ErrorCode);
            }
            env.Close();
        }