/// <summary>
/// 初始化辅助数据写入器。
/// </summary>
/// <param name="dataWriter">原始数据写入器</param>
/// <param name="valueFilter">数据筛选器</param>
public DataFilterWriter(IDataWriter <TKey> dataWriter, IValueFilter <TKey> valueFilter)
{
DataWriter = dataWriter;
ValueFilter = valueFilter;
ValueInfo = new ValueFilterInfo <TKey>();
}
public bool Filter(ValueFilterInfo <TIn> valueInfo)
{
return(valueFilter.Filter(new ValueFilterInfo <TOut>(
XConvert <TOut> .Convert(valueInfo.Key),
valueInfo.Type,
valueInfo.ValueCopyer
)));
}
public void OnReadAll(IDataWriter <TKey> dataWriter, IValueFilter <TKey> valueFilter)
{
var valueInfo = new ValueFilterInfo <TKey>();
foreach (var item in content)
{
ValueInterface <TValue> .WriteValue(valueInfo.ValueCopyer, item.Value);
valueInfo.Key = item.Key;
valueInfo.Type = typeof(TValue);
if (valueFilter.Filter(valueInfo))
{
valueInfo.ValueCopyer.WriteTo(dataWriter[valueInfo.Key]);
}
}
}
public void OnReadAll(IDataWriter<int> dataWriter, IValueFilter<int> valueFilter)
{
var valueInfo = new ValueFilterInfo<int>();
for (int i = 0; i < Content.Tables.Count; i++)
{
OnReadValue(i, valueInfo.ValueCopyer);
valueInfo.Key = i;
valueInfo.Type = typeof(DataTable);
if (valueFilter.Filter(valueInfo))
{
valueInfo.ValueCopyer.WriteTo(dataWriter[valueInfo.Key]);
}
}
}
public void OnReadAll(IDataWriter <object> dataWriter, IValueFilter <object> valueFilter)
{
var valueInfo = new ValueFilterInfo <object>();
foreach (DictionaryEntry item in content)
{
ValueInterface.WriteValue(valueInfo.ValueCopyer, item.Value);
valueInfo.Key = item.Key;
valueInfo.Type = typeof(object);
if (valueFilter.Filter(valueInfo))
{
valueInfo.ValueCopyer.WriteTo(dataWriter[valueInfo.Key]);
}
}
}
public void OnReadAll(IDataWriter <string> dataWriter, IValueFilter <string> valueFilter)
{
var valueInfo = new ValueFilterInfo <string>();
foreach (DataColumn item in Content.Table.Columns)
{
ValueInterface.GetInterface(item.DataType).Write(valueInfo.ValueCopyer, Content[item.Ordinal]);
valueInfo.Key = item.ColumnName;
valueInfo.Type = item.DataType;
if (valueFilter.Filter(valueInfo))
{
valueInfo.ValueCopyer.WriteTo(dataWriter[valueInfo.Key]);
}
}
}
public override void OnReadAll(IDataWriter <int> dataWriter, IValueFilter <int> valueFilter)
{
int length = Count;
var valueInfo = new ValueFilterInfo <int>();
for (int i = 0; i < length; ++i)
{
valueInfo.ValueCopyer.WriteArray(new ChildrenRW(this, i));
valueInfo.Key = i;
valueInfo.Type = typeof(T[]);
if (valueFilter.Filter(valueInfo))
{
valueInfo.ValueCopyer.WriteTo(dataWriter[valueInfo.Key]);
}
}
}
public void OnReadAll(IDataWriter <int> dataWriter, IValueFilter <int> valueFilter)
{
int length = Count;
var valueInfo = new ValueFilterInfo <int>();
for (int i = 0; i < length; i++)
{
OnReadValue(i, valueInfo.ValueCopyer);
valueInfo.Key = i;
valueInfo.Type = valueInfo.ValueCopyer.Type;
if (valueFilter.Filter(valueInfo))
{
valueInfo.ValueCopyer.WriteTo(dataWriter[i]);
}
}
}
public void OnReadAll(IDataWriter <string> dataWriter, IValueFilter <string> valueFilter)
{
int length = Count;
var valueInfo = new ValueFilterInfo <string>();
for (int i = 0; i < length; i++)
{
OnReadValue(i, valueInfo.ValueCopyer);
valueInfo.Key = Content.Columns[i].ColumnName;
valueInfo.Type = valueInfo.ValueCopyer.Type;
if (valueFilter.Filter(valueInfo))
{
valueInfo.ValueCopyer.WriteTo(dataWriter[valueInfo.Key]);
}
}
}
public void OnReadAll(IDataWriter <int> dataWriter, IValueFilter <int> valueFilter)
{
int count = content.Count;
var valueInfo = new ValueFilterInfo <int>();
for (int i = 0; i < count; i++)
{
var value = content[i];
ValueInterface <TValue> .Content.WriteValue(valueInfo.ValueCopyer, value);
valueInfo.Key = i;
valueInfo.Type = typeof(TValue);
if (valueFilter.Filter(valueInfo))
{
valueInfo.ValueCopyer.WriteTo(dataWriter[valueInfo.Key]);
}
}
}
public void OnReadAll(IDataWriter <int> dataWriter, IValueFilter <int> valueFilter)
{
int length = Count;
var valueInfo = new ValueFilterInfo <int>();
for (int i = 0; i < length; ++i)
{
var value = content.content[baseIndex, i];
ValueInterface <T> .WriteValue(valueInfo.ValueCopyer, value);
valueInfo.Key = i;
valueInfo.Type = typeof(T);
if (valueFilter.Filter(valueInfo))
{
valueInfo.ValueCopyer.WriteTo(dataWriter[valueInfo.Key]);
}
}
}
