public void Load(string FileName)
{
XmlSerializer Serializer = new XmlSerializer(typeof(List <Book>));
StreamReader Reader = new StreamReader(FileName);
if (!IsUpdating)
{
CurData.Add((byte)DataBaseCommand.Load);
byte[] buffer = new byte[Reader.BaseStream.Length];
Reader.BaseStream.Read(buffer, 0, (int)Reader.BaseStream.Length);
CurData.AddRange(buffer);
if (RealTimeCommit)
{
Commit();
}
}
base.Clear();
List <Book> Books = (List <Book>)Serializer.Deserialize(Reader);
foreach (Book B in Books)
{
base.Add(B);
}
Reader.Close();
}
void AddInteger(int number)
{
CurData.Add((byte)((number & 0xFF000000) >> 24));
CurData.Add((byte)((number & 0x00FF0000) >> 16));
CurData.Add((byte)((number & 0x0000FF00) >> 8));
CurData.Add((byte)((number & 0x000000FF)));
}
public void Get()
{
CurData.Add((byte)DataBaseCommand.Serialize);
if (RealTimeCommit)
{
Commit();
}
}
// Write methods. Commit is required
new public Book this[int index]
{
get
{
return(base[index]);
}
set
{
if (IsUpdating)
{
if (Invoke != null)
{
//Invoke((Action)delegate { base.SetItem(index, value); });
// надо что-то с этим делать
Invoke((Action) delegate { base.RemoveAt(index); });
Invoke((Action) delegate { base.Insert(index, value); });
}
else
{
this[index] = value;
}
}
else
{
CurData.Add((byte)DataBaseCommand.Change);
AddInteger(index);
CurData.AddRange(Encoding.UTF8.GetBytes(value.ToString()));
if (TransactionRequest)
{
Argums = new Queue();
Argums.Enqueue(DataBaseCommand.Change);
Argums.Enqueue(index);
Argums.Enqueue(value);
}
else
{
if (Invoke != null)
{
//Invoke((Action)delegate { base.SetItem(index, value); });
// надо что-то с этим делать
Invoke((Action) delegate { base.RemoveAt(index); });
Invoke((Action) delegate { base.Insert(index, value); });
}
else
{
this[index] = value;
}
}
if (RealTimeCommit)
{
Commit();
}
}
}
}
// server save to stream
public void Serialize()
{
XmlSerializer Serializer = new XmlSerializer(typeof(List <Book>));
byte[] ar = new byte[8192];
MemoryStream Stream = new MemoryStream(ar);
Serializer.Serialize(Stream, base.Items);
Array.Resize(ref ar, (int)Stream.Position);
Stream.Close();
CurData.Add((byte)DataBaseCommand.Load);
CurData.AddRange(ar);
if (RealTimeCommit)
{
Commit();
}
}
public void Insert(int index, Book item)
{
if (IsUpdating)
{
if (Invoke != null)
{
Invoke((Action) delegate { base.Insert(index, item); });
}
else
{
base.Insert(index, item);
}
}
else
{
CurData.Add((byte)DataBaseCommand.Add);
AddInteger(index);
CurData.AddRange(Encoding.Unicode.GetBytes(item.ToString()));
if (TransactionRequest)
{
Argums = new Queue();
Argums.Enqueue(DataBaseCommand.Add);
Argums.Enqueue(index);
Argums.Enqueue(item);
}
else
{
if (Invoke != null)
{
Invoke((Action) delegate { base.Insert(index, item); });
}
else
{
base.Insert(index, item);
}
}
if (RealTimeCommit)
{
Commit();
}
}
}
new public void RemoveAt(int index)
{
if (IsUpdating)
{
if (Invoke != null)
{
Invoke((Action) delegate { base.RemoveAt(index); });
}
else
{
base.RemoveAt(index);
}
}
else
{
CurData.Add((byte)DataBaseCommand.RemoveAt);
AddInteger(index);
if (TransactionRequest)
{
Argums = new Queue();
Argums.Enqueue(DataBaseCommand.RemoveAt);
Argums.Enqueue(index);
}
else
{
if (Invoke != null)
{
Invoke((Action) delegate { base.RemoveAt(index); });
}
else
{
base.RemoveAt(index);
}
}
if (RealTimeCommit)
{
Commit();
}
}
}
public void TransactCommit()
{
CurData.Add((Byte)DataBaseCommand.TransactCommited);
Commit();
}