#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;
using System.Collections;
using System.Data;
using IBatisNet.DataMapper.Configuration.ResultMapping;
using IBatisNet.DataMapper.Scope;
namespace IBatisNet.DataMapper.MappedStatements.PropertyStrategy{
/// <summary>
/// <see cref="IPropertyStrategy"/> implementation when a 'select' attribute exists
/// on a <see cref="IList"/> <see cref="ResultProperty"/>
/// </summary>
public sealed class SelectListStrategy : IPropertyStrategy
{
#region IPropertyStrategy members
///<summary>
/// Sets value of the specified <see cref="ResultProperty"/> on the target object
/// when a 'select' attribute exists and fills an <see cref="IList"/> property
/// on the <see cref="ResultProperty"/> are empties.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="resultMap">The result map.</param>
/// <param name="mapping">The ResultProperty.</param>
/// <param name="target">The target.</param>
/// <param name="reader">The current <see cref="IDataReader"/></param>
/// <param name="keys">The keys</param>
public void Set(RequestScope request, IResultMap resultMap,
ResultProperty mapping, ref object target, IDataReader reader, object keys)
{
// Get the select statement
IMappedStatement selectStatement = request.MappedStatement.SqlMap.GetMappedStatement(mapping.Select);
PostBindind postSelect = new PostBindind();
postSelect.Statement = selectStatement;
postSelect.Keys = keys;
postSelect.Target = target;
postSelect.ResultProperty = mapping;
if (mapping.IsLazyLoad)
{
object values = mapping.LazyFactory.CreateProxy(selectStatement, keys, target, mapping.SetAccessor);
mapping.SetAccessor.Set(target, values);
}
else
{
if (mapping.SetAccessor.MemberType == typeof(IList))
{
postSelect.Method = PostBindind.ExecuteMethod.ExecuteQueryForIList;
}
else
{
postSelect.Method = PostBindind.ExecuteMethod.ExecuteQueryForStrongTypedIList;
}
request.QueueSelect.Enqueue(postSelect);
}
}
/// <summary>
/// Gets the value of the specified <see cref="ResultProperty"/> that must be set on the target object.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="resultMap">The result map.</param>
/// <param name="mapping">The mapping.</param>
/// <param name="reader">The reader.</param>
/// <param name="target">The target object</param>
public object Get(RequestScope request, IResultMap resultMap, ResultProperty mapping, ref object target, IDataReader reader)
{
throw new NotSupportedException("Get method on ResultMapStrategy is not supported");
}
#endregion
}
}
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