DataServiceQuery.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataWeb / Client / System / Data / Services / Client / DataServiceQuery.cs / 1305376 / DataServiceQuery.cs
                        

                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//  
// query base object
//  
//--------------------------------------------------------------------- 

namespace System.Data.Services.Client 
{
    using System.Collections;
    using System.Linq;
    using System.Linq.Expressions; 

    /// non-generic placeholder for generic implementation 
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1010", Justification = "required for this feature")] 
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1710", Justification = "required for this feature")]
    public abstract class DataServiceQuery : DataServiceRequest, IQueryable 
    {
        /// internal constructor so that only our assembly can provide an implementation
        internal DataServiceQuery()
        { 
        }
 
        /// Linq Expression 
        public abstract Expression Expression
        { 
            get;
        }

        /// Linq Query Provider 
        public abstract IQueryProvider Provider
        { 
            get; 
        }
 
        /// Get an enumerator materializes the objects the Uri request.
        /// an enumerator
        /// Expect derived class to override this with an explict interface implementation
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1033", Justification = "required for this feature")] 
        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
        { 
            throw Error.NotImplemented(); 
        }
 
#if !ASTORIA_LIGHT
        /// Synchronous methods not available
        /// 
        /// Returns an IEnumerable from an Internet resource. 
        /// 
        /// An IEnumerable that contains the response from the Internet resource. 
        public IEnumerable Execute() 
        {
            return this.ExecuteInternal(); 
        }
#endif

        ///  
        /// Begins an asynchronous request to an Internet resource.
        ///  
        /// The AsyncCallback delegate. 
        /// The state object for this request.
        /// An IAsyncResult that references the asynchronous request for a response. 
        public IAsyncResult BeginExecute(AsyncCallback callback, object state)
        {
            return this.BeginExecuteInternal(callback, state);
        } 

        ///  
        /// Ends an asynchronous request to an Internet resource. 
        /// 
        /// The pending request for a response.  
        /// An IEnumerable that contains the response from the Internet resource.
        public IEnumerable EndExecute(IAsyncResult asyncResult)
        {
            return this.EndExecuteInternal(asyncResult); 
        }
 
#if !ASTORIA_LIGHT 
        /// Synchronous methods not available
        ///  
        /// Returns an IEnumerable from an Internet resource.
        /// 
        /// An IEnumerable that contains the response from the Internet resource.
        internal abstract IEnumerable ExecuteInternal(); 
#endif
 
        ///  
        /// Begins an asynchronous request to an Internet resource.
        ///  
        /// The AsyncCallback delegate.
        /// The state object for this request.
        /// An IAsyncResult that references the asynchronous request for a response.
        internal abstract IAsyncResult BeginExecuteInternal(AsyncCallback callback, object state); 

        ///  
        /// Ends an asynchronous request to an Internet resource. 
        /// 
        /// The pending request for a response.  
        /// An IEnumerable that contains the response from the Internet resource.
        internal abstract IEnumerable EndExecuteInternal(IAsyncResult asyncResult);
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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