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#region Copyright
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#endregion
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using System;
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using System.Data;
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using Seasar.Extension.ADO;
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using Seasar.Extension.ADO.Impl;
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using Seasar.Extension.DataSets.Types;
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namespace Seasar.Extension.DataSets.Impl
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{
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public class DataRowReloadDataReaderHandler : IDataReaderHandler
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{
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private DataRow row_;
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private DataRow newRow_;
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public DataRowReloadDataReaderHandler(DataRow row, DataRow newRow)
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{
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row_ = row;
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newRow_ = newRow;
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}
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public DataRow Row
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{
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get { return row_; }
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}
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public DataRow NewRow
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{
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get { return newRow_; }
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}
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#region IDataReaderHandler メンバ
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public object Handle(System.Data.IDataReader reader)
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{
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IPropertyType[] propertyTypes = PropertyTypeUtil.CreatePropertyTypes(reader.GetSchemaTable());
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if (reader.Read())
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{
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Reload(reader, propertyTypes);
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}
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return newRow_;
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}
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#endregion
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private void Reload(System.Data.IDataReader reader, IPropertyType[] propertyTypes)
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{
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for (int i = 0; i < propertyTypes.Length; ++i)
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{
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object value = propertyTypes[i].ValueType.GetValue(reader, i);
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if (value == null)
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{
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newRow_[i] = DBNull.Value;
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}
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else
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{
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newRow_[i] = ColumnTypes.GetColumnType(propertyTypes[i].PropertyType).Convert(value, null);
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}
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}
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}
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}
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}
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