// Persist library : Persistence layer
// Copyright (C) 2003 Vincent Daron
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
using System;
using System.Collections.Specialized;
namespace Persist.Converters{
/// <summary>
/// This interface is used to create a Converter
/// All the Statements parameters are converted before Mapping to object and before database insertion
/// Thanks to these Converters, it's possible to map unsuported database Type, for example GUID in MySQL can be converted to Strings easily
/// the IConverter to used during Mapping muist be specified in configuration
/// </summary>
public interface IConverter
{
/// <summary>
/// Initialize the converter
/// </summary>
/// <param name="properties">Parameters</param>
void Init(NameValueCollection properties);
/// <summary>
/// Convert to object attribute Type from database Type
/// </summary>
/// <param name="obj">the object to be converted</param>
/// <returns>the converted object</returns>
object ConvertTo(object obj);
/// <summary>
/// Convert from object attribute type to database Type
/// </summary>
/// <param name="obj">the object to be converted</param>
/// <returns>the converted object</returns>
object ConvertFrom(object obj);
}
}
|