RowCallbackDao.cs :  » Inversion-of-Control-Dependency-Injection » Spring.net » Spring » DataQuickStart » Dao » Template » C# / CSharp Open Source

Home
C# / CSharp Open Source
1.2.6.4 mono .net core
2.2.6.4 mono core
3.Aspect Oriented Frameworks
4.Bloggers
5.Build Systems
6.Business Application
7.Charting Reporting Tools
8.Chat Servers
9.Code Coverage Tools
10.Content Management Systems CMS
11.CRM ERP
12.Database
13.Development
14.Email
15.Forum
16.Game
17.GIS
18.GUI
19.IDEs
20.Installers Generators
21.Inversion of Control Dependency Injection
22.Issue Tracking
23.Logging Tools
24.Message
25.Mobile
26.Network Clients
27.Network Servers
28.Office
29.PDF
30.Persistence Frameworks
31.Portals
32.Profilers
33.Project Management
34.RSS RDF
35.Rule Engines
36.Script
37.Search Engines
38.Sound Audio
39.Source Control
40.SQL Clients
41.Template Engines
42.Testing
43.UML
44.Web Frameworks
45.Web Service
46.Web Testing
47.Wiki Engines
48.Windows Presentation Foundation
49.Workflows
50.XML Parsers
C# / C Sharp
C# / C Sharp by API
C# / CSharp Tutorial
C# / CSharp Open Source » Inversion of Control Dependency Injection » Spring.net 
Spring.net » Spring » DataQuickStart » Dao » Template » RowCallbackDao.cs
using System.Collections;
using System.Data;
using Spring.Data;
using Spring.Data.Core;

namespace Spring.DataQuickStart.Dao.Template{
    public class RowCallbackDao : AdoDaoSupport
    {
        private string cmdText = "select ContactName, PostalCode from Customers";

        public virtual IDictionary GetPostalCodeCustomerMapping()
        {
            PostalCodeRowCallback statefullCallback = new PostalCodeRowCallback();
            AdoTemplate.QueryWithRowCallback(CommandType.Text, cmdText,
                                             statefullCallback);

            // Do something with results in stateful callback...
            return statefullCallback.PostalCodeMultimap;
        }
      
        
    }

    internal class PostalCodeRowCallback : IRowCallback
    {
        private IDictionary postalCodeMultimap = new Hashtable();

        public IDictionary PostalCodeMultimap
        {
            get { return postalCodeMultimap; }
        }

        /// <summary>
        /// Implementations must implement this method to process each row of data
        /// in the data reader.
        /// </summary>
        /// <remarks>
        /// This method should not advance the cursor by calling Read()
        /// on IDataReader but only extract the current values.  The
        /// caller does not need to care about closing the reader, command, connection, or
        /// about handling transactions:  this will all be handled by 
        /// Spring's AdoTemplate
        /// </remarks>
        /// <param name="reader">An active IDataReader instance</param>
        /// <returns>The result object</returns>
        public void ProcessRow(IDataReader reader)
        {
            string contactName = reader.GetString(0);
            string postalCode = reader.GetString(1);
            IList contactNameList;
            if (postalCodeMultimap.Contains(postalCode))
            {
                contactNameList = postalCodeMultimap[postalCode] as IList;
            }
            else
            {
                postalCodeMultimap.Add(postalCode, contactNameList = new ArrayList());
            }
            contactNameList.Add(contactName);
        }
    }
}
www.java2v.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.