public object Clone()
{
RecordRow row = new RecordRow(this._columns);
row._objects = (ClusteredArray <object>) this._objects.Clone();
return(row);
}
public bool MoveNext()
{
if (_recordSet != null)
{
if (_recordSet.ContainsRow(++_rowId))
{
_current = _recordSet.GetRow(_rowId);
_recordSet.RemoveRow(_rowId);
return(true);
}
}
return(false);
}
private void SetCurrentEnumerator() //for each move next,call pick one of partition record set.
{
if (_partitionRecordSets.Count == 0)
{
return;
}
bool hasNext = false;
do
{
try
{
if (_partitionRecordSets.Count <= _counter)
{
throw new InvalidReaderException("Data reader has lost its state");
}
_currentRecordSet = _partitionRecordSets[_counter];
hasNext = _currentRecordSet.MoveNext();
}
catch (InvalidReaderException e)
{
this.Dispose();
throw;
}
catch (Exception e)
{
throw;
}
if (hasNext)
{
_current = _currentRecordSet.Current;
}
else
{
_partitionRecordSets.Remove(_currentRecordSet);
RemoveFromValidReaders(_currentRecordSet);
}
_counter++;
if (_counter >= _partitionRecordSets.Count)
{
_counter = 0;
}
} while (!hasNext && _partitionRecordSets.Count > 0);
_next = hasNext;
}
public void Merge(RecordRow row)
{
for (int i = 0; i < this._columns.Count; i++)
{
if (this._columns[i].ColumnType == ColumnType.AggregateResultColumn)
{
switch (this._columns[i].AggregateFunctionType)
{
case AggregateFunctionType.SUM:
decimal a;
decimal b;
object thisVal = this._objects[i];
object otherVal = row._objects[i];
decimal?sum = null;
if (thisVal == null && otherVal != null)
{
sum = (decimal)otherVal;
}
else if (thisVal != null && otherVal == null)
{
sum = (decimal)thisVal;
}
else if (thisVal != null && otherVal != null)
{
a = (decimal)thisVal;
b = (decimal)otherVal;
sum = a + b;
}
if (sum != null)
{
this._objects[i] = sum;
}
else
{
this._objects[i] = null;
}
break;
case AggregateFunctionType.COUNT:
a = (decimal)this._objects[i];
b = (decimal)row._objects[i];
decimal count = a + b;
this._objects[i] = count;
break;
case AggregateFunctionType.MIN:
IComparable thisValue = (IComparable)this._objects[i];
IComparable otherValue = (IComparable)row._objects[i];
IComparable min = thisValue;
if (thisValue == null && otherValue != null)
{
min = otherValue;
}
else if (thisValue != null && otherValue == null)
{
min = thisValue;
}
else if (thisValue == null && otherValue == null)
{
min = null;
}
else if (otherValue.CompareTo(thisValue) < 0)
{
min = otherValue;
}
//this.AggregateFunctionResult = min;
this._objects[i] = min;
break;
case AggregateFunctionType.MAX:
thisValue = (IComparable)this._objects[i];
otherValue = (IComparable)row._objects[i];
IComparable max = thisValue;
if (thisValue == null && otherValue != null)
{
max = otherValue;
}
else if (thisValue != null && otherValue == null)
{
max = thisValue;
}
else if (thisValue == null && otherValue == null)
{
max = null;
}
else if (otherValue.CompareTo(thisValue) > 0)
{
max = otherValue;
}
//this.AggregateFunctionResult = max;
this._objects[i] = max;
break;
case AggregateFunctionType.AVG:
thisVal = this._objects[i];
otherVal = row._objects[i];
AverageResult avg = null;
if (thisVal == null && otherVal != null)
{
avg = (AverageResult)otherVal;
}
else if (thisVal != null && otherVal == null)
{
avg = (AverageResult)thisVal;
}
else if (thisVal != null && otherVal != null)
{
AverageResult thisResult = (AverageResult)thisVal;
AverageResult otherResult = (AverageResult)otherVal;
avg = new AverageResult();
avg.Sum = thisResult.Sum + otherResult.Sum;
avg.Count = thisResult.Count + otherResult.Count;
}
if (avg != null)
{
this._objects[i] = avg;
}
else
{
this._objects[i] = null;
}
break;
}
}
}
}
public int CompareOrder(RecordRow row, List <OrderByArgument> orderBy)
{
int result = 0;
foreach (OrderByArgument oba in orderBy)
{
switch (_columns[oba.AttributeName].DataType)
{
case ColumnDataType.Bool:
result = ((bool)this.GetColumnValue(oba.AttributeName)).CompareTo(((bool)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.Byte:
result = ((byte)this.GetColumnValue(oba.AttributeName)).CompareTo(((byte)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.Char:
result = ((char)this.GetColumnValue(oba.AttributeName)).CompareTo(((char)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.DateTime:
result = ((DateTime)this.GetColumnValue(oba.AttributeName)).CompareTo(((DateTime)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.Decimal:
result = ((decimal)this.GetColumnValue(oba.AttributeName)).CompareTo(((decimal)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.Double:
result = ((double)this.GetColumnValue(oba.AttributeName)).CompareTo(((double)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.Float:
result = ((float)this.GetColumnValue(oba.AttributeName)).CompareTo(((float)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.Int16:
result = ((Int16)this.GetColumnValue(oba.AttributeName)).CompareTo(((Int16)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.Int32:
result = ((Int32)this.GetColumnValue(oba.AttributeName)).CompareTo(((Int32)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.Int64:
result = ((Int64)this.GetColumnValue(oba.AttributeName)).CompareTo(((Int64)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.SByte:
result = ((sbyte)this.GetColumnValue(oba.AttributeName)).CompareTo(((sbyte)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.String:
result = ((string)this.GetColumnValue(oba.AttributeName)).CompareTo(((string)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.UInt16:
result = ((UInt16)this.GetColumnValue(oba.AttributeName)).CompareTo(((UInt16)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.UInt32:
result = ((UInt32)this.GetColumnValue(oba.AttributeName)).CompareTo(((UInt32)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.UInt64:
result = ((UInt64)this.GetColumnValue(oba.AttributeName)).CompareTo(((UInt64)row.GetColumnValue(oba.AttributeName)));
break;
case ColumnDataType.CompressedValueEntry:
case ColumnDataType.Object:
break;
}
if (result != 0)
{
if (oba.Order == Order.DESC)
{
result = -result;
}
break;
}
}
return(result);
}
public void Add(RecordRow row)
{
_rows.Add(++_lastRow, row);
}
public void Dispose()
{
_recordSet = null;
_current = null;
}
/// <summary>
/// Adds row to current <see cref="Alachisoft.NCache.Common.DataStructures.RecorSet"/>
/// </summary>
/// <param name="row"><see cref="Alachisoft.NCache.Common.DataStructures.RecordRow"/> to be added in current <see cref="Alachisoft.NCache.Common.DataStructures.RecorSet"/></param>
public void AddRow(RecordRow row)
{
_rows.Add(row);
}
/// <summary>
/// Returns new <see cref="Alachisoft.NCache.Common.DataStructures.RecordRow"/> with column matadata of current <see cref="Alachisoft.NCache.Common.DataStructures.RecordSet"/>
/// </summary>
/// <returns>Newly created <see cref="Alachisoft.NCache.Common.DataStructures.RecordRow"/></returns>
public RecordRow CreateRow()
{
RecordRow row = new RecordRow(_columns);
return(row);
}
