class/System.Core/System.Linq/EnumerableQuery_T.cs

   1 //
   2 // EnumerableQuery<T>.cs
   3 //
   4 // Authors:
   5 //  Marek Safar  <marek.safar@gmail.com>
   6 //  Jb Evain  <jbevain@novell.com>
   7 //
   8 // Copyright (C) 2009 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 #if NET_4_0
  31
  32 using System.Collections;
  33 using System.Collections.Generic;
  34 using System.Linq.Expressions;
  35
  36 namespace System.Linq
  37 {
  38         public class EnumerableQuery<T> : EnumerableQuery, IOrderedQueryable<T>, IQueryable<T>, IQueryProvider
  39         {
  40                 QueryableEnumerable<T> queryable;
  41
  42                 public Type ElementType {
  43                         get { return queryable.ElementType; }
  44                 }
  45
  46                 public Expression Expression {
  47                         get { return queryable.Expression; }
  48                 }
  49
  50                 public IQueryProvider Provider {
  51                         get { return queryable; }
  52                 }
  53
  54                 public EnumerableQuery (Expression expression)
  55                 {
  56                         queryable = new QueryableEnumerable<T> (expression);
  57                 }
  58
  59                 public EnumerableQuery (IEnumerable<T> enumerable)
  60                 {
  61                         queryable = new QueryableEnumerable<T> (enumerable);
  62                 }
  63
  64                 public IEnumerable GetEnumerable ()
  65                 {
  66                         return queryable.GetEnumerable ();
  67                 }
  68
  69                 IEnumerator IEnumerable.GetEnumerator ()
  70                 {
  71                         return queryable.GetEnumerator ();
  72                 }
  73
  74                 public IEnumerator<T> GetEnumerator ()
  75                 {
  76                         return queryable.GetEnumerator ();
  77                 }
  78
  79                 public IQueryable CreateQuery (Expression expression)
  80                 {
  81                         return queryable.CreateQuery (expression);
  82                 }
  83
  84                 public object Execute (Expression expression)
  85                 {
  86                         return queryable.Execute (expression);
  87                 }
  88
  89                 public IQueryable<TElem> CreateQuery<TElem> (Expression expression)
  90                 {
  91                         return new EnumerableQuery<TElem> (expression);
  92                 }
  93
  94                 public TResult Execute<TResult> (Expression expression)
  95                 {
  96                         return queryable.Execute<TResult> (expression);
  97                 }
  98         }
  99 }
 100
 101 #endif