public override NHibernate.Hql.Ast.HqlTreeNode BuildHql(System.Reflection.MethodInfo method, System.Linq.Expressions.Expression targetObject, System.Collections.ObjectModel.ReadOnlyCollection <System.Linq.Expressions.Expression> arguments, NHibernate.Hql.Ast.HqlTreeBuilder treeBuilder, NHibernate.Linq.Visitors.IHqlExpressionVisitor visitor)
{
//return treeBuilder.Constant(0);
return(treeBuilder.Case(new HqlWhen[] {
treeBuilder.When(
treeBuilder.LessThan(visitor.Visit(arguments[0]).AsExpression(), visitor.Visit(arguments[1]).AsExpression()),
treeBuilder.Constant(-1)),
treeBuilder.When(
treeBuilder.GreaterThan(visitor.Visit(arguments[0]).AsExpression(), visitor.Visit(arguments[1]).AsExpression()),
treeBuilder.Constant(1))
},
treeBuilder.Constant(0)));
}
public override NHibernate.Hql.Ast.HqlTreeNode BuildHql(MethodInfo method,
Expression targetObject,
ReadOnlyCollection <Expression> arguments,
NHibernate.Hql.Ast.HqlTreeBuilder treeBuilder,
NHibernate.Linq.Visitors.IHqlExpressionVisitor visitor)
{
// Below 'Class' method is not 'YourLinqExtensions.Class' extension method.
// It is natively available on HqlTreeBuilder.
return(treeBuilder.Dot(
visitor.Visit(arguments[0]).AsExpression(),
treeBuilder.Class()));
}
public override NHibernate.Hql.Ast.HqlTreeNode BuildHql(MethodInfo method,
Expression targetObject,
ReadOnlyCollection <Expression> arguments,
NHibernate.Hql.Ast.HqlTreeBuilder treeBuilder,
NHibernate.Linq.Visitors.IHqlExpressionVisitor visitor)
{
return(treeBuilder.Dot(
// using NHibernate.Hql.Ast; required for .AsExpression() to be found
// at compile time.
visitor.Visit(arguments[0]).AsExpression(),
// Below 'Class' method is not 'YourLinqExtensions.Class' extension
// method. It is natively available on HqlTreeBuilder.
treeBuilder.Class()));
}
public override NHibernate.Hql.Ast.HqlTreeNode BuildHql(MemberInfo member, Expression expression, NHibernate.Hql.Ast.HqlTreeBuilder treeBuilder, NHibernate.Linq.Visitors.IHqlExpressionVisitor visitor)
{
return(treeBuilder.MethodCall("dayofyear", visitor.Visit(expression).AsExpression()));
}