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C# HqlTreeBuilder.Join方法代码示例

本文整理汇总了C#中NHibernate.Hql.Ast.HqlTreeBuilder.Join方法的典型用法代码示例。如果您正苦于以下问题:C# HqlTreeBuilder.Join方法的具体用法?C# HqlTreeBuilder.Join怎么用?C# HqlTreeBuilder.Join使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在NHibernate.Hql.Ast.HqlTreeBuilder的用法示例。


在下文中一共展示了HqlTreeBuilder.Join方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: BuildHql

        ///<summary>
        ///
        ///</summary>
        ///<param name="method"></param>
        ///<param name="targetObject">Should be an ISecurable</param>
        ///<param name="arguments">Not sure what the heck arg[0] is, but arg[1] is the entityName</param>
        ///<param name="treeBuilder"></param>
        ///<param name="visitor"></param>
        ///<returns></returns>
        public override HqlTreeNode BuildHql(
            MethodInfo method,
            Expression targetObject,
            ReadOnlyCollection<Expression> arguments,
            HqlTreeBuilder treeBuilder,
            IHqlExpressionVisitor visitor)
        {
            // arguments[0] is a System.Linq.Expressions.Expression
            // arguments[1] is our constant value
            var expr = arguments[0];

            // This doesn't really help us right now, but log it just in case...
            if (expr is Remotion.Linq.Clauses.Expressions.QuerySourceReferenceExpression)
            {
                Console.WriteLine(
                    "ReferencedQuerySource: {0}",
                    ((Remotion.Linq.Clauses.Expressions.QuerySourceReferenceExpression)expr).ReferencedQuerySource
                );
            }

            // Getting somewhere?
            // expr.Type is Spc.Ofp.Tubs.DAL.Entities.Trip
            Console.WriteLine("Expression type: {0}", expr.Type);

            // HqlAlias is "AccessControl" (entity property), "ace" (name used in expression) ?
            // HqlExpression is equality expression ?
            var aceAlias = treeBuilder.Alias("AccessControl as ace");

            var entityName = ((ConstantExpression)arguments[1]).Value;

            Console.WriteLine("entityName: {0}", entityName);

            var equality = treeBuilder.Equality(
                treeBuilder.Alias("ace.EntityName"),
                treeBuilder.Constant(entityName)
            );

            var joinExpression = treeBuilder.Join(equality, aceAlias);

            // This doesn't actually do anything...
            return visitor.Visit(expr).AsExpression();

            /*
             * var dc =
                DetachedCriteria.For<T>()
                                .CreateAlias("AccessControl", "ace", JoinType.InnerJoin)
                                .Add(NHibernate.Criterion.Expression.Eq("ace.EntityName", this._entityName));
             */
        }
开发者ID:spc-ofp,项目名称:tubs-data-clr,代码行数:58,代码来源:AclContainsGenerator.cs


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