public override void VisitAddExpression(BinaryExpression expr)
{
var leftVisitor = new SelectArgumentsVisitor <TResult>(parent);
var rightVisitor = new SelectArgumentsVisitor <TResult>(parent);
leftVisitor.VisitExpression(expr.Left);
rightVisitor.VisitExpression(expr.Right);
var joinedProjections = new List <IProjection>();
joinedProjections.AddRange(leftVisitor.projections);
joinedProjections.AddRange(rightVisitor.projections);
IType[] types = joinedProjections[0].GetTypes(parent.RootCriteria, parent.CriteriaQuery);
var useConcat = types[0] is AbstractStringType;
SqlFunctionProjection projection;
if (useConcat)
{
projection = new SqlFunctionProjection("concat", types[0], joinedProjections.ToArray());
}
else
{
projection = new SqlFunctionProjection(arithmaticAddition, types[0], joinedProjections.ToArray());
}
projections.Add(projection);
}
public override void VisitConditionalExpression(ConditionalExpression expr)
{
var visitorTrue = new SelectArgumentsVisitor <TResult>(parent);
visitorTrue.VisitExpression(expr.IfTrue);
var visitorFalse = new SelectArgumentsVisitor <TResult>(parent);
visitorFalse.VisitExpression(expr.IfFalse);
var visitorCondition = new WhereArgumentsVisitor(parent.RootCriteria);
visitorCondition.VisitExpression(expr.Test);
Conjunction conjunction = NHibernate.Expressions.Expression.Conjunction();
foreach (var criterion in visitorCondition.CurrentCriterions)
{
conjunction.Add(criterion);
}
projections.Add(
NHibernate.Expressions.Projections
.Conditional(conjunction,
visitorTrue.ProjectionList,
visitorFalse.ProjectionList)
);
}
public override void VisitConvertExpression(UnaryExpression expr)
{
var visitor = new SelectArgumentsVisitor <TResult>(parent);
visitor.VisitExpression(expr.Operand);
var list = NHibernate.Expressions.Projections.ProjectionList();
foreach (var proj in visitor.Projections)
{
list.Add(proj);
}
var projection = new CastProjection(NHibernateUtil.GuessType(expr.Type), list);
projections.Add(projection);
}
private void VisitAritmaticOperation(BinaryExpression expr, ISQLFunction arithmaticOperation)
{
var leftVisitor = new SelectArgumentsVisitor <TResult>(parent);
var rightVisitor = new SelectArgumentsVisitor <TResult>(parent);
leftVisitor.VisitExpression(expr.Left);
rightVisitor.VisitExpression(expr.Right);
var joinedProjections = new List <IProjection>();
joinedProjections.AddRange(leftVisitor.projections);
joinedProjections.AddRange(rightVisitor.projections);
var types = joinedProjections[0].GetTypes(parent.RootCriteria, parent.CriteriaQuery);
var projection = new SqlFunctionProjection(arithmaticOperation, types[0], joinedProjections.ToArray());
projections.Add(projection);
}