using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Data.OleDb;
using System.Data.Odbc;
using System.Data.OracleClient;
namespace HRHO_Utilities
{
public sealed class DBManagerFactory
{
private DBManagerFactory() { }
public static IDbConnection GetConnection(DataProvider providerType)
{
IDbConnection iDbConnection = null;
switch (providerType)
{
case DataProvider.SqlServer:
iDbConnection = new SqlConnection();
break;
case DataProvider.OleDb:
iDbConnection = new OleDbConnection();
break;
case DataProvider.Odbc:
iDbConnection = new OdbcConnection();
break;
case DataProvider.Oracle:
iDbConnection = new OracleConnection();
break;
default:
return null;
}
return iDbConnection;
}
public static IDbCommand GetCommand(DataProvider providerType)
{
switch (providerType)
{
case DataProvider.SqlServer:
return new SqlCommand();
case DataProvider.OleDb:
return new OleDbCommand();
case DataProvider.Odbc:
return new OdbcCommand();
case DataProvider.Oracle:
return new OracleCommand();
default:
return null;
}
}
public static IDbDataAdapter GetDataAdapter(DataProvider providerType)
{
switch (providerType)
{
case DataProvider.SqlServer:
return new SqlDataAdapter();
case DataProvider.OleDb:
return new OleDbDataAdapter();
case DataProvider.Odbc:
return new OdbcDataAdapter();
case DataProvider.Oracle:
return new OracleDataAdapter();
default:
return null;
}
}
public static IDbTransaction GetTransaction(DataProvider providerType)
{
IDbConnection iDbConnection = GetConnection(providerType);
IDbTransaction iDbTransaction = iDbConnection.BeginTransaction();
return iDbTransaction;
}
public static IDataParameter GetParameter(DataProvider providerType)
{
IDataParameter iDataParameter = null;
switch (providerType)
{
case DataProvider.SqlServer:
iDataParameter = new SqlParameter();
break;
case DataProvider.OleDb:
iDataParameter = new OleDbParameter();
break;
case DataProvider.Odbc:
iDataParameter = new OdbcParameter();
break;
case DataProvider.Oracle:
iDataParameter = new OracleParameter();
break;
}
return iDataParameter;
}
public static IDbDataParameter[] GetParameters(DataProvider providerType, int paramsCount)
{
IDbDataParameter[] idbParams = new IDbDataParameter[paramsCount];
switch (providerType)
{
case DataProvider.SqlServer:
for (int i = 0; i < paramsCount; ++i)
{
idbParams[i] = new SqlParameter();
}
break;
case DataProvider.OleDb:
for (int i = 0; i < paramsCount; ++i)
{
idbParams[i] = new OleDbParameter();
}
break;
case DataProvider.Odbc:
for (int i = 0; i < paramsCount; ++i)
{
idbParams[i] = new OdbcParameter();
}
break;
case DataProvider.Oracle:
for (int i = 0; i < paramsCount; ++i)
{
idbParams[i] = new OracleParameter();
}
break;
default:
idbParams = null;
break;
}
return idbParams;
}
}
}
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Data.OleDb;
using System.Data.Odbc;
using System.Data.OracleClient;
namespace HRHO_Utilities
{
public sealed class DBManagerFactory
{
private DBManagerFactory() { }
public static IDbConnection GetConnection(DataProvider providerType)
{
IDbConnection iDbConnection = null;
switch (providerType)
{
case DataProvider.SqlServer:
iDbConnection = new SqlConnection();
break;
case DataProvider.OleDb:
iDbConnection = new OleDbConnection();
break;
case DataProvider.Odbc:
iDbConnection = new OdbcConnection();
break;
case DataProvider.Oracle:
iDbConnection = new OracleConnection();
break;
default:
return null;
}
return iDbConnection;
}
public static IDbCommand GetCommand(DataProvider providerType)
{
switch (providerType)
{
case DataProvider.SqlServer:
return new SqlCommand();
case DataProvider.OleDb:
return new OleDbCommand();
case DataProvider.Odbc:
return new OdbcCommand();
case DataProvider.Oracle:
return new OracleCommand();
default:
return null;
}
}
public static IDbDataAdapter GetDataAdapter(DataProvider providerType)
{
switch (providerType)
{
case DataProvider.SqlServer:
return new SqlDataAdapter();
case DataProvider.OleDb:
return new OleDbDataAdapter();
case DataProvider.Odbc:
return new OdbcDataAdapter();
case DataProvider.Oracle:
return new OracleDataAdapter();
default:
return null;
}
}
public static IDbTransaction GetTransaction(DataProvider providerType)
{
IDbConnection iDbConnection = GetConnection(providerType);
IDbTransaction iDbTransaction = iDbConnection.BeginTransaction();
return iDbTransaction;
}
public static IDataParameter GetParameter(DataProvider providerType)
{
IDataParameter iDataParameter = null;
switch (providerType)
{
case DataProvider.SqlServer:
iDataParameter = new SqlParameter();
break;
case DataProvider.OleDb:
iDataParameter = new OleDbParameter();
break;
case DataProvider.Odbc:
iDataParameter = new OdbcParameter();
break;
case DataProvider.Oracle:
iDataParameter = new OracleParameter();
break;
}
return iDataParameter;
}
public static IDbDataParameter[] GetParameters(DataProvider providerType, int paramsCount)
{
IDbDataParameter[] idbParams = new IDbDataParameter[paramsCount];
switch (providerType)
{
case DataProvider.SqlServer:
for (int i = 0; i < paramsCount; ++i)
{
idbParams[i] = new SqlParameter();
}
break;
case DataProvider.OleDb:
for (int i = 0; i < paramsCount; ++i)
{
idbParams[i] = new OleDbParameter();
}
break;
case DataProvider.Odbc:
for (int i = 0; i < paramsCount; ++i)
{
idbParams[i] = new OdbcParameter();
}
break;
case DataProvider.Oracle:
for (int i = 0; i < paramsCount; ++i)
{
idbParams[i] = new OracleParameter();
}
break;
default:
idbParams = null;
break;
}
return idbParams;
}
}
}
No comments:
Post a Comment