Repository/RepositoryLinq2Sql.cs

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/*
 * Author: Kishore Reddy
 * Url: http://commonlibrarynet.codeplex.com/
 * Title: CommonLibrary.NET
 * Copyright: � 2009 Kishore Reddy
 * License: LGPL License
 * LicenseUrl: http://commonlibrarynet.codeplex.com/license
 * Description: A C# based .NET 3.5 Open-Source collection of reusable components.
 * Usage: Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Collections;
using System.Text;
using System.Data;
using System.Data.Common;
using System.Data.Linq;
using System.Data.Linq.Mapping;
using System.Reflection;
using System.Linq.Expressions;

using ComLib;
using ComLib.Entities;
using ComLib.Data;
using ComLib.Reflection;


namespace ComLib.Entities
{
    /// <summary>
    /// Repository pattern providing CRUD( Create / Retrieve / Update / Delete ) and other methods
    /// using Linq 2 Sql.
    /// 
    /// NOTES:
    /// 1. This is slightly Hybrid version of plain dynamic sql, Linq2Sql, and stored procs
    /// 2. This requires a RowMapper and stored procedures if using the GetByFilter and GetRecent methods
    /// 3. This uses dynamic sql for the Find methods
    /// 4. Linq 2 Sql is used for Create, Update, Get, Delete methods.
    /// 5. Linq 2 Sql itself is a limited solution with the following restrictions:
    /// 
    ///     -a. Can only be used for SQL Server
    ///     -b. Only supports a 1-1 object to table mapping.
    ///     -c. The Update( T entity ) method is a workaround to the inability to attach POCO's( detached entities ) to a different DataContext.
    ///    
    /// </summary>
    /// <typeparam name="T"></typeparam>
    public class RepositoryLinq2Sql<T> : RepositoryBase<T> where T : class, IEntity
    {
        /// <summary>
        /// Initialize.
        /// </summary>
        public RepositoryLinq2Sql()
        {
            Init(null, null);
        }