BN089-BS开发框架MVC4版/source20131023/Zephyr.Net/Zephyr.Data/Providers/SqlServerCompactProvider.cs

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using System;
using System.Data;
using System.Data.Common;
using Zephyr.Data.Providers.Common;
using Zephyr.Data.Providers.Common.Builders;

namespace Zephyr.Data
{
	public class SqlServerCompactProvider : IDbProvider
	{
		private static readonly Lazy<DbProviderFactory> _dbProviderFactory = new Lazy<DbProviderFactory>(CreateDbProviderFactory, true);

		private static DbProviderFactory CreateDbProviderFactory()
		{
			return DbProviderFactories.GetFactory(ProviderName);
		}

		public IDbConnection CreateConnection()
		{
			return _dbProviderFactory.Value.CreateConnection();
		}

		public static string ProviderName
		{
			get
			{
				return "System.Data.SqlServerCe.4.0";
			}
		}

		public bool SupportsOutputParameters
		{
			get { return false; }
		}

		public bool SupportsMultipleQueries
		{
			get { return false; }
		}

		public bool SupportsMultipleResultsets
		{
			get { return false; }
		}

		public bool SupportsStoredProcedures
		{
			get { return false; }
		}

		public bool RequiresIdentityColumn
		{
			get { return false; }
		}

		public IDbConnection CreateConnection(string connectionString)
		{
			return ConnectionFactory.CreateConnection(ProviderName, connectionString);
		}