public RestQueryable(IRemoteDataFetcher dataFetcher, Expression expression)
: this(dataFetcher)
{
if (expression == null)
{
throw new ArgumentNullException(string.Format("[RestQueryable<{0}>].[ctor].expression", typeof(T).Name), "查询表达式不能为 null 。");
}
Expression = expression;
}
public RestQueryable(IRemoteDataFetcher dataFetcher)
{
DataFetcher = dataFetcher;
Expression = Expression.Constant(this);
var provider = RemoteObjectContext.DefaultObjectResolver.GetInstance <IQueryProvider <T> >();
provider.DataFetcher = DataFetcher;
Provider = provider;
}
/// <summary>
/// 获取一个 <see cref="IQueryable{TSource}" /> 类型的 RESTful 查询。
/// </summary>
/// <typeparam name="TSource">当前查询的元素类型。</typeparam>
/// <param name="dataFetcher">一个远程数据获取器的实例对象。</param>
/// <returns>一个可以链式编写的 <see cref="IQueryable{TSource}" /> 查询。</returns>
public static IQueryable <TSource> AsQuerable <TSource>(this IRemoteDataFetcher dataFetcher)
{
return(new RestQueryable <TSource>(dataFetcher));
}
