public override void VisitWhereClause(WhereClause whereClause, QueryModel queryModel, int index)
{
var visitor = new SimplifyConditionalVisitor();
whereClause.Predicate = visitor.Visit(whereClause.Predicate);
// Visit the predicate to build the query
var expression = HqlGeneratorExpressionVisitor.Visit(whereClause.Predicate, VisitorParameters).ToBooleanExpression();
_hqlTree.AddWhereClause(expression);
}
public override void VisitWhereClause(WhereClause whereClause, QueryModel queryModel, int index)
{
// Visit the predicate to build the query
var expression = HqlGeneratorExpressionTreeVisitor.Visit(whereClause.Predicate, VisitorParameters).AsBooleanExpression();
if (whereClause is NhHavingClause)
{
_hqlTree.AddHavingClause(expression);
}
else
{
_hqlTree.AddWhereClause(expression);
}
}
public void Process(ContainsResultOperator resultOperator, QueryModelVisitor queryModelVisitor, IntermediateHqlTree tree)
{
var itemExpression =
HqlGeneratorExpressionTreeVisitor.Visit(resultOperator.Item, queryModelVisitor.VisitorParameters)
.AsExpression();
var from = GetFromRangeClause(tree.Root);
var source = from.Children.First();
if (source is HqlParameter)
{
// This is an "in" style statement
if (IsEmptyList((HqlParameter)source, queryModelVisitor.VisitorParameters))
{
// if the list is empty the expression will always be false, so generate "1 = 0"
tree.SetRoot(tree.TreeBuilder.Equality(tree.TreeBuilder.Constant(1), tree.TreeBuilder.Constant(0)));
}
else
{
tree.SetRoot(tree.TreeBuilder.In(itemExpression, source));
}
}
else
{
// This is an "exists" style statement
tree.AddWhereClause(tree.TreeBuilder.Equality(
tree.TreeBuilder.Ident(GetFromAlias(tree.Root).AstNode.Text),
itemExpression));
tree.SetRoot(tree.TreeBuilder.Exists((HqlQuery)tree.Root));
}
}
public void Process(AllResultOperator resultOperator, QueryModelVisitor queryModelVisitor, IntermediateHqlTree tree)
{
tree.AddWhereClause(tree.TreeBuilder.BooleanNot(
HqlGeneratorExpressionTreeVisitor.Visit(resultOperator.Predicate, queryModelVisitor.VisitorParameters).
ToBooleanExpression()));
tree.SetRoot(tree.TreeBuilder.BooleanNot(tree.TreeBuilder.Exists((HqlQuery)tree.Root)));
}
public void Process(OfTypeResultOperator resultOperator, QueryModelVisitor queryModelVisitor, IntermediateHqlTree tree)
{
var source = queryModelVisitor.Model.SelectClause.GetOutputDataInfo().ItemExpression;
var expression = new HqlGeneratorExpressionTreeVisitor(queryModelVisitor.VisitorParameters)
.BuildOfType(source, resultOperator.SearchedItemType);
tree.AddWhereClause(expression);
}
public void Process(OfTypeResultOperator resultOperator, QueryModelVisitor queryModelVisitor, IntermediateHqlTree tree)
{
Expression source = queryModelVisitor.Model.SelectClause.GetOutputDataInfo().ItemExpression;
tree.AddWhereClause(tree.TreeBuilder.Equality(
tree.TreeBuilder.Dot(
HqlGeneratorExpressionTreeVisitor.Visit(source, queryModelVisitor.VisitorParameters).AsExpression(),
tree.TreeBuilder.Class()),
tree.TreeBuilder.Ident(resultOperator.SearchedItemType.FullName)));
}
public void Process(OfTypeResultOperator resultOperator, QueryModelVisitor queryModelVisitor, IntermediateHqlTree tree)
{
Expression source =
queryModelVisitor.CurrentEvaluationType.As <StreamedSequenceInfo>().ItemExpression;
tree.AddWhereClause(tree.TreeBuilder.Equality(
tree.TreeBuilder.Dot(
HqlGeneratorExpressionTreeVisitor.Visit(source, queryModelVisitor.VisitorParameters).AsExpression(),
tree.TreeBuilder.Class()),
tree.TreeBuilder.Ident(resultOperator.SearchedItemType.FullName)));
}
public void Process(AllResultOperator resultOperator, QueryModelVisitor queryModelVisitor, IntermediateHqlTree tree)
{
tree.AddWhereClause(tree.TreeBuilder.BooleanNot(
HqlGeneratorExpressionTreeVisitor.Visit(resultOperator.Predicate, queryModelVisitor.VisitorParameters).
ToBooleanExpression()));
if (tree.IsRoot)
{
tree.AddTakeClause(tree.TreeBuilder.Constant(1));
Expression <Func <IEnumerable <object>, bool> > x = l => !l.Any();
tree.AddListTransformer(x);
}
else
{
tree.SetRoot(tree.TreeBuilder.BooleanNot(tree.TreeBuilder.Exists((HqlQuery)tree.Root)));
}
}
public void Process(AllResultOperator resultOperator, QueryModelVisitor queryModelVisitor, IntermediateHqlTree tree)
{
tree.AddWhereClause(tree.TreeBuilder.BooleanNot(
HqlGeneratorExpressionVisitor.Visit(resultOperator.Predicate, queryModelVisitor.VisitorParameters).
ToBooleanExpression()));
if (tree.IsRoot)
{
tree.AddTakeClause(tree.TreeBuilder.Constant(1));
Expression <Func <IEnumerable <object>, bool> > x = l => !l.Any();
tree.AddListTransformer(x);
// NH-3850: Queries with polymorphism yields many results which must be combined.
Expression <Func <IEnumerable <bool>, bool> > px = l => l.All(r => r);
tree.AddPostExecuteTransformer(px);
}
else
{
tree.SetRoot(tree.TreeBuilder.BooleanNot(tree.TreeBuilder.Exists((HqlQuery)tree.Root)));
}
}
public override void VisitWhereClause(WhereClause whereClause, QueryModel queryModel, int index)
{
// Visit the predicate to build the query
_hqlTree.AddWhereClause(HqlGeneratorExpressionTreeVisitor.Visit(whereClause.Predicate, VisitorParameters).AsBooleanExpression());
}