public IEnumerable <ICdlRecord> EnumRows(ArrayDataRecord record)
{
int page = 0;
while (page < _directory.Count)
{
lock (_directory)
{
BinaryReader br = new BinaryReader(_cache);
_cache.Seek(_directory[page], SeekOrigin.Begin);
ChunkInfo info = ChunkInfo.LoadInfo(br);
for (int i = 0; i < info.Count; i++)
{
if (record == null)
{
yield return(CdlTool.LoadRecord(br, _table));
}
else
{
CdlTool.LoadRecord(br, record);
yield return(record);
}
}
}
page++;
}
}
internal void SaveRecord(ICdlRecord rec)
{
long pos0 = Data.Length;
CdlTool.SaveRecord(rec.FieldCount, rec, m_writer);
Lengths.Add((int)(Data.Length - pos0));
}
public void SaveToXml(XmlElement xml)
{
using (XmlWriter xw = xml.CreateNavigator().AppendChild())
{
CdlTool.SaveToXml(m_structure, Rows, xw);
xw.Flush();
}
}
public InMemoryTable(TableInfo table, XmlElement xml)
{
Initialize();
m_structure = table.CloneTable();
using (XmlNodeReader xr = new XmlNodeReader(xml))
{
foreach (var rec in CdlTool.LoadFromXml(m_structure, xr))
{
m_rows.Add(new ArrayDataRecord(rec));
}
}
}
public CdlTable LoadTableData(int start = 0, int?count = null)
{
lock (_directory)
{
CdlTable table = new CdlTable(_table);
if (count == null)
{
count = _serializedRows;
}
if (start >= _serializedRows)
{
return(table);
}
int curdic = start / BUFFER_SIZE, skiprec = start % BUFFER_SIZE;
_cache.Seek(_directory[curdic], SeekOrigin.Begin);
int availtables = _directory.Count - curdic;
BinaryReader br = new BinaryReader(_cache);
while (table.Rows.Count < count && availtables >= 1)
{
ChunkInfo info = ChunkInfo.LoadInfo(br);
if (skiprec > 0)
{
int skipbytes = 0;
for (int i = 0; i < skiprec; i++)
{
skipbytes += info.Lengths[i];
}
_cache.Seek(skipbytes, SeekOrigin.Current);
}
int rec = skiprec;
while (rec < info.Count)
{
table.AddRowInternal(CdlTool.LoadRecord(br, _table));
rec++;
}
availtables--;
skiprec = 0;
}
return(table);
}
}
