public void SetValue(string fieldName, Constant value)
{
var type = _schema.FieldType(fieldName);
switch (type)
{
case FieldType.Bool:
_recordFile.SetBool(fieldName, (value as Constant <bool>).Value);
return;
case FieldType.Byte:
_recordFile.SetByte(fieldName, (value as Constant <byte>).Value);
return;
case FieldType.Integer:
_recordFile.SetInt(fieldName, (value as Constant <int>).Value);
return;
case FieldType.Blob:
_recordFile.SetBlob(fieldName, (value as Constant <byte[]>).Value);
return;
case FieldType.Date:
_recordFile.SetDate(fieldName, (value as Constant <DateTime>).Value);
return;
}
}
public void CanReadWrittenBlobRecord()
{
var tableFile = RandomFilename;
var schema = new Schema();
schema.AddBlobField("field", 40);
_tableInfo = new TableInfo(tableFile, schema);
_recordFile = new RecordFile(_tableInfo, _transaction);
_recordFile.MoveToRID(new RID(0, 0));
_recordFile.SetBlob("field", new byte[] { 1, 2, 3, 4, 5 });
_recordFile.Close();
_transaction.Commit();
var cm = new ConcurrencyManager();
var newTr = new Transaction(_dispatcher, _bufferManager, cm, _fileManager, _logManager);
var rf = new RecordFile(_tableInfo, newTr);
rf.MoveToRID(new RID(0, 0));
var value = rf.GetBlob("field");
Assert.AreEqual(new byte[] { 1, 2, 3, 4, 5 }, value);
}
public void CanWriteBlobOnARecord()
{
var tableFile = RandomFilename;
var schema = new Schema();
schema.AddBlobField("field", 50);
_tableInfo = new TableInfo(tableFile, schema);
_recordFile = new RecordFile(_tableInfo, _transaction);
_recordFile.MoveToRID(new RID(0, 0));
_recordFile.SetBlob("field", new byte[] { 10, 20 });
_recordFile.Close();
_transaction.Commit();
var block = new IO.Primitives.Block(tableFile + ".tbl", 0);
var page = _fileManager.ResolvePage(block);
page.Read(block);
_ = page.GetBlob(4, out var value);
Assert.AreEqual(new byte[] { 10, 20 }, value);
}