/// <summary> Refreshes the cursor and attempts to reposition it on the given row. </summary>
/// <param name="row"> A <see cref="RemoteRow"/> structure containing the row to be positioned on after the refresh. </param>
/// <returns> A <see cref="RemoteGotoData"/> structure containing the result of the refresh. </returns>
public RemoteGotoData Refresh(RemoteRow row, ProcessCallInfo callInfo)
{
_plan.Process.ProcessCallInfo(callInfo);
try
{
Schema.RowType type = new Schema.RowType();
for (int index = 0; index < row.Header.Columns.Length; index++)
{
type.Columns.Add(_serverCursor.SourceRowType.Columns[row.Header.Columns[index]].Copy());
}
Row localRow = new Row(_plan.Process.ServerProcess.ValueManager, type);
try
{
localRow.ValuesOwned = false;
localRow.AsPhysical = row.Body.Data;
RemoteGotoData gotoData = new RemoteGotoData();
gotoData.Success = _serverCursor.Refresh(localRow, out gotoData.Flags);
return(gotoData);
}
finally
{
localRow.Dispose();
}
}
catch (Exception E)
{
throw WrapException(E);
}
}
protected bool SourceGotoBookmark(Guid bookmark, bool forward)
{
RemoteGotoData gotoData = _cursor.GotoBookmark(bookmark, forward, _plan._process.GetProcessCallInfo());
SetFlags(gotoData.Flags);
_plan._programStatisticsCached = false;
return(gotoData.Success);
}
/// <summary> Positions the cursor on the DataBuffer denoted by the given bookmark obtained from a previous call to <c> GetBookmark </c> . </summary>
/// <param name="bookmark"> A <see cref="RemoteRowBody"/> structure containing the data for the bookmark. </param>
/// <returns> A <see cref="RemoteGotoData"/> structure containing the results of the goto call. </returns>
public RemoteGotoData GotoBookmark(Guid bookmark, bool forward, ProcessCallInfo callInfo)
{
_plan.Process.ProcessCallInfo(callInfo);
try
{
RemoteGotoData gotoData = new RemoteGotoData();
gotoData.Success = _serverCursor.GotoBookmark(bookmark, forward, out gotoData.Flags);
return(gotoData);
}
catch (Exception E)
{
throw WrapException(E);
}
}
public bool Refresh(IRow row)
{
if (BufferActive())
{
ClearBuffer();
}
SetBufferDirection(BufferDirection.Backward);
RemoteRow localRow = new RemoteRow();
_plan._process.EnsureOverflowConsistent(row);
localRow.Header = new RemoteRowHeader();
localRow.Header.Columns = new string[row.DataType.Columns.Count];
for (int index = 0; index < row.DataType.Columns.Count; index++)
{
localRow.Header.Columns[index] = row.DataType.Columns[index].Name;
}
localRow.Body = new RemoteRowBody();
localRow.Body.Data = row.AsPhysical;
RemoteGotoData gotoData = _cursor.Refresh(localRow, _plan._process.GetProcessCallInfo());
SetFlags(gotoData.Flags);
_plan._programStatisticsCached = false;
return(gotoData.Success);
}
public bool FindKey(IRow key)
{
RemoteRow localKey = new RemoteRow();
_plan._process.EnsureOverflowConsistent(key);
localKey.Header = new RemoteRowHeader();
localKey.Header.Columns = new string[key.DataType.Columns.Count];
for (int index = 0; index < key.DataType.Columns.Count; index++)
{
localKey.Header.Columns[index] = key.DataType.Columns[index].Name;
}
localKey.Body = new RemoteRowBody();
localKey.Body.Data = key.AsPhysical;
RemoteGotoData gotoData = _cursor.FindKey(localKey, _plan._process.GetProcessCallInfo());
SetFlags(gotoData.Flags);
_plan._programStatisticsCached = false;
if (gotoData.Success && BufferActive())
{
ClearBuffer();
}
SetBufferDirection(BufferDirection.Backward);
return(gotoData.Success);
}
