#region Apache Notice
/*****************************************************************************
* $Revision: 374175 $
* $LastChangedDate: 2006-04-25 19:40:27 +0200 (mar., 25 avr. 2006) $
* $LastChangedBy: gbayon $
*
* iBATIS.NET Data Mapper
* Copyright (C) 2006/2005 - The Apache Software Foundation
*
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*
********************************************************************************/
#endregion
using System.Collections;
#if dotnet2
using System.Collections.Generic;
#endif
using IBatisNet.DataMapper.Configuration.ResultMapping;
using IBatisNet.DataMapper.MappedStatements.PropertStrategy;
namespace IBatisNet.DataMapper.MappedStatements.PropertyStrategy{
/// <summary>
/// Factory to get <see cref="IPropertyStrategy"/> implementation.
/// </summary>
public sealed class PropertyStrategyFactory
{
private static IPropertyStrategy _defaultStrategy = null;
private static IPropertyStrategy _resultMapStrategy = null;
private static IPropertyStrategy _groupByStrategy = null;
private static IPropertyStrategy _selectArrayStrategy = null;
private static IPropertyStrategy _selectGenericListStrategy = null;
private static IPropertyStrategy _selectListStrategy = null;
private static IPropertyStrategy _selectObjectStrategy = null;
/// <summary>
/// Initializes the <see cref="PropertyStrategyFactory"/> class.
/// </summary>
static PropertyStrategyFactory()
{
_defaultStrategy = new DefaultStrategy();
_resultMapStrategy = new ResultMapStrategy();
_groupByStrategy = new GroupByStrategy();
_selectArrayStrategy = new SelectArrayStrategy();
_selectListStrategy = new SelectListStrategy();
_selectObjectStrategy = new SelectObjectStrategy();
#if dotnet2
_selectGenericListStrategy = new SelectGenericListStrategy();
#endif
}
/// <summary>
/// Finds the <see cref="IPropertyStrategy"/>.
/// </summary>
/// <param name="mapping">The <see cref="ResultProperty"/>.</param>
/// <returns>The <see cref="IPropertyStrategy"/></returns>
public static IPropertyStrategy Get(ResultProperty mapping)
{
// no 'select' or 'resultMap' attributes
if (mapping.Select.Length == 0 && mapping.NestedResultMap == null)
{
// We have a 'normal' ResultMap
return _defaultStrategy;
}
else if (mapping.NestedResultMap != null) // 'resultMap' attribute
{
if (mapping.NestedResultMap.GroupByPropertyNames.Count>0)
{
return _groupByStrategy;
}
else
{
#if dotnet2
if (mapping.MemberType.IsGenericType &&
typeof(IList<>).IsAssignableFrom(mapping.MemberType.GetGenericTypeDefinition()))
{
return _groupByStrategy;
}
else
#endif
if (typeof(IList).IsAssignableFrom(mapping.MemberType))
{
return _groupByStrategy;
}
else
{
return _resultMapStrategy;
}
}
}
else //'select' ResultProperty
{
return new SelectStrategy(mapping,
_selectArrayStrategy,
_selectGenericListStrategy,
_selectListStrategy,
_selectObjectStrategy);
}
}
}
}
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