/// <summary>
/// Renders the clause in textual representation.
/// </summary>
/// <param name="writer">to output to</param>
/// <param name="formatter">for NewLine-whitespace formatting</param>
/// <param name="isTopLevel">to indicate if this select-clause is inside other clauses.</param>
/// <param name="andDelete">indicator whether select and delete.</param>
public void ToEPL(
TextWriter writer,
EPStatementFormatter formatter,
bool isTopLevel,
bool andDelete)
{
formatter.BeginSelect(writer, isTopLevel);
writer.Write("select ");
if (andDelete)
{
writer.Write("and delete ");
}
if (IsDistinct)
{
writer.Write("distinct ");
}
if (_streamSelector == StreamSelector.ISTREAM_ONLY)
{
// the default, no action
}
else if (_streamSelector == StreamSelector.RSTREAM_ONLY)
{
writer.Write("rstream ");
}
else if (_streamSelector == StreamSelector.RSTREAM_ISTREAM_BOTH)
{
writer.Write("irstream ");
}
if (_selectList != null && !_selectList.IsEmpty())
{
string delimiter = "";
foreach (SelectClauseElement element in _selectList)
{
writer.Write(delimiter);
element.ToEPLElement(writer);
delimiter = ", ";
}
}
else
{
writer.Write('*');
}
}