/// <exception cref="System.SqlSyntaxErrorException" />
public DmlSelectStatement(SelectOption option,
IList<Pair<IExpression, string>> selectExprList,
TableReferences tables,
IExpression where,
GroupBy group,
IExpression having,
OrderBy order,
Limit limit)
{
if (option == null)
{
throw new ArgumentException("argument 'option' is null");
}
Option = option;
if (selectExprList == null || selectExprList.IsEmpty())
{
this.selectExprList = new List<Pair<IExpression, string>>(0);
}
else
{
this.selectExprList = EnsureListType(selectExprList);
}
Tables = tables;
Where = where;
Group = group;
Having = having;
Order = order;
Limit = limit;
}
public DmlUpdateStatement(bool lowPriority,
bool ignore,
TableReferences tableRefs,
IList<Pair<Identifier, IExpression>> values,
IExpression where, OrderBy orderBy,
Limit limit)
{
IsLowPriority = lowPriority;
IsIgnore = ignore;
if (tableRefs == null)
{
throw new ArgumentException("argument tableRefs is null for update stmt");
}
TableRefs = tableRefs;
if (values == null || values.Count <= 0)
{
Values = new List<Pair<Identifier, IExpression>>(0);
}
else
{
if (!(values is List<Pair<Identifier, IExpression>>))
{
Values = new List<Pair<Identifier, IExpression>>(values);
}
else
{
Values = values;
}
}
Where = where;
OrderBy = orderBy;
Limit = limit;
}
/// <exception cref="System.SqlSyntaxErrorException" />
public DmlDeleteStatement(bool lowPriority,
bool quick,
bool ignore,
Identifier tableName,
IExpression where,
OrderBy orderBy,
Limit limit)
{
// ------- single-row delete------------
IsLowPriority = lowPriority;
IsQuick = quick;
IsIgnore = ignore;
tableNames = new List<Identifier>(1);
tableNames.Add(tableName);
TableRefs = null;
WhereCondition = where;
OrderBy = orderBy;
Limit = limit;
}
public virtual DmlSelectUnionStatement SetOrderBy(OrderBy orderBy)
{
this.orderBy = orderBy;
return this;
}
public virtual void Visit(OrderBy node)
{
VisitInternal(node.OrderByList);
}
/// <summary>nothing has been pre-consumed</summary>
/// <returns>null if there is no order by</returns>
/// <exception cref="System.SqlSyntaxErrorException" />
protected internal virtual OrderBy OrderBy()
{
if (lexer.Token() != MySqlToken.KwOrder)
{
return null;
}
lexer.NextToken();
Match(MySqlToken.KwBy);
var expr = exprParser.Expression();
var order = SortOrder.Asc;
OrderBy orderBy;
switch (lexer.Token())
{
case MySqlToken.KwDesc:
{
order = SortOrder.Desc;
goto case MySqlToken.KwAsc;
}
case MySqlToken.KwAsc:
{
if (lexer.NextToken() != MySqlToken.PuncComma)
{
return new OrderBy(expr, order);
}
goto case MySqlToken.PuncComma;
}
case MySqlToken.PuncComma:
{
orderBy = new OrderBy();
orderBy.AddOrderByItem(expr, order);
break;
}
default:
{
return new OrderBy(expr, order);
}
}
for (; lexer.Token() == MySqlToken.PuncComma;)
{
lexer.NextToken();
order = SortOrder.Asc;
expr = exprParser.Expression();
switch (lexer.Token())
{
case MySqlToken.KwDesc:
{
order = SortOrder.Desc;
goto case MySqlToken.KwAsc;
}
case MySqlToken.KwAsc:
{
lexer.NextToken();
break;
}
}
orderBy.AddOrderByItem(expr, order);
}
return orderBy;
}
