///////////////////////////////////////////////////////////////////////
/// <summary>
/// Determines the unique row identifier for the current row.
/// </summary>
/// <param name="cursor">
/// The <see cref="SQLiteVirtualTableCursor" /> object instance
/// associated with the previously opened virtual table cursor to be
/// used.
/// </param>
/// <param name="value">
/// The object instance to return a unique row identifier for.
/// </param>
/// <returns>
/// The unique row identifier or zero upon failure.
/// </returns>
protected virtual long GetRowIdFromObject(
SQLiteVirtualTableCursor cursor,
object value
)
{
int rowIndex = (cursor != null) ? cursor.GetRowIndex() : 0;
int hashCode = SQLiteMarshal.GetHashCode(value, objectIdentity);
return(MakeRowId(rowIndex, hashCode));
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Determines the unique row identifier for the current row.
/// </summary>
/// <param name="cursor">
/// The <see cref="SQLiteVirtualTableCursor" /> object instance
/// associated with the previously opened virtual table cursor to be
/// used.
/// </param>
/// <param name="value">
/// The object instance to return a unique row identifier for.
/// </param>
/// <returns>
/// The unique row identifier or zero upon failure.
/// </returns>
protected virtual long GetRowIdFromObject(
SQLiteVirtualTableCursor cursor,
object value
)
{
if ((cursor != null) && (value != null))
{
return(MakeRowId(cursor.GetRowIndex(), value.GetHashCode()));
}
else if (cursor != null)
{
return(cursor.GetRowIndex());
}
else if (value != null)
{
return(value.GetHashCode());
}
else
{
return(0);
}
}
