public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection<Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor) { // All has two arguments. Arg 1 is the source and arg 2 is the predicate var predicate = (LambdaExpression)arguments[1]; return treeBuilder.Not( treeBuilder.Exists( treeBuilder.Query( treeBuilder.SelectFrom( treeBuilder.From( treeBuilder.Range( visitor.Visit(arguments[0]), treeBuilder.Alias(predicate.Parameters[0].Name)) ) ), treeBuilder.Where( treeBuilder.Not(visitor.Visit(arguments[1]).AsBooleanExpression()) ) ) ) ); }