} // getInt()
private bool?getBoolean(string key)
{
object obj = get(key);
if (obj == null)
{
return(null);
}
return(BooleanComparator.toBoolean(obj));
} // getBoolean()
} // select()
protected object createOperand(string token, SelectItem leftSelectItem, bool searchSelectItems)
{
if (token.Equals("NULL", StringComparison.CurrentCultureIgnoreCase))
{
return(null);
}
if (token.StartsWith("'") && token.EndsWith("'") && token.Length > 2)
{
string stringOperand = token.Substring(1, token.Length - 1);
//[J2N] replaceAll <=> Replace
stringOperand = stringOperand.Replace("\\\\'", "'");
return(stringOperand);
}
if (searchSelectItems)
{
SelectItem selectItem = findSelectItem(token, false);
if (selectItem != null)
{
return(selectItem);
}
}
ColumnType expectedColumnType = leftSelectItem.getExpectedColumnType();
object result = null;
if (expectedColumnType == null)
{
// We're assuming number here, but it could also be boolean or a
// time based type. But anyways, this should not happen since
// expected column type should be available.
result = NumberComparator.toNumber(token);
}
else if (expectedColumnType.isBoolean())
{
result = BooleanComparator.toBoolean(token);
}
// else if (expectedColumnType.isTimeBased())
// {
// result = FormatHelper.parseSqlTime(expectedColumnType, token);
// }
// else
// {
// result = NumberComparator.toNumber(token);
// }
// if (result == null)
// {
// // shouldn't happen since only "NULL" is parsed as null.
// throw new QueryParserException("Could not parse operand: " + token);
// }
return(result);
} // createOperand()