/// <summary>
///
/// </summary>
/// <param name="source"></param>
/// <param name="mapper"></param>
/// <param name="disposing">释放回调</param>
public QueryResultEnumerator(IResultSource source, IResultMapper <TEntity> mapper, Action <int> disposing)
{
mapper.TearUp(source);
_disposing = disposing;
_source = source;
_mapper = mapper;
}
