public Join()
{
Condition = new CriteriaExpression( null );
_joinMap = new Dictionary<JoinType, string>
{
{ JoinType.Join, "JOIN" },
{ JoinType.InnerJoin, "INNER JOIN" },
{ JoinType.LeftJoin, "LEFT JOIN" },
{ JoinType.LeftOuterJoin, "LEFT OUTER JOIN" },
{ JoinType.RightJoin, "RIGHT JOIN" },
{ JoinType.RightOuterJoin, "RIGHT OUTER JOIN" },
{ JoinType.FullJoin, "FULL JOIN" },
{ JoinType.FullOuterJoin, "FULL OUTER JOIN" },
{ JoinType.CrossJoin, "CROSS JOIN" }
};
TableHints = new List<TableHint>();
}
private Expression ReadCriteriaList( Expression parent )
{
Expression expression = ReadCriteria( parent );
if ( Tokenizer.IsNextToken( "AND", "OR" ) )
{
CriteriaExpression result = new CriteriaExpression( parent );
result.Left = expression;
result.Operator = CurrentToken;
ReadNextToken();
result.Right = ReadCriteriaList( result );
return result;
}
else
return expression;
}
protected CriteriaExpression ProcessCriteriaExpression( Expression parent )
{
CriteriaExpression expression = new CriteriaExpression( parent );
expression.Left = ProcessExpression();
expression.Operator = GetOperator();
expression.Right = ProcessExpression();
return expression;
}
private CriteriaExpression ProcessCriteria( Expression parent, Expression expression )
{
CriteriaExpression result = new CriteriaExpression( parent );
result.Left = expression;
result.Operator = CurrentToken;
ReadNextToken();
result.Right = ReadExpression( parent );
return result;
}