コード例 #1
0
        public override DbExpression Visit(DbApplyExpression expression)
        {
            EntityUtil.CheckArgumentNull(expression, "expression");

            DbExpression result = expression;

            DbExpressionBinding newInput = this.VisitExpressionBindingEnterScope(expression.Input);
            DbExpressionBinding newApply = this.VisitExpressionBinding(expression.Apply);

            this.ExitScope();

            if (!object.ReferenceEquals(expression.Input, newInput) ||
                !object.ReferenceEquals(expression.Apply, newApply))
            {
                if (DbExpressionKind.CrossApply == expression.ExpressionKind)
                {
                    result = CqtBuilder.CrossApply(newInput, newApply);
                }
                else
                {
                    Debug.Assert(expression.ExpressionKind == DbExpressionKind.OuterApply, "DbApplyExpression had ExpressionKind other than CrossApply or OuterApply?");
                    result = CqtBuilder.OuterApply(newInput, newApply);
                }
            }
            NotifyIfChanged(expression, result);
            return(result);
        }