/// <summary>
/// Initializes a new instance of the <see cref="DataReaderReader"/>
/// </summary>
/// <param name="mapper">
/// A <see cref="IDataReaderMapper{T}"/> that should be used to map
/// the data containined into the <paramref name="reader"/> to a
/// object or a collection of objects of the type <typeparamref name="T"/>.
/// </param>
/// <param name="reader">
/// A <see cref="IDataReader"/> to fetch the data.
/// </param>
/// <param name="disposables">
/// A collection of <see cref="IDisposable"/> objects related with the
/// given <paramref name="reader"/> that needs to be disposed as the same
/// time as the <see cref="QueryMapper{T}"/> object.
/// </param>
public QueryMapper(IDataReaderMapper <T> mapper, IDataReader reader,
IEnumerable <IDisposable> disposables)
{
mapper_ = mapper;
reader_ = reader;
disposables_ = disposables.ToArray();
}
/// <summary>
/// Resolve the given <paramref name="criteria"/> into a
/// <see cref="IDataReaderMapper{T}"/> object.
/// </summary>
public static IDataReaderMapper <T> Resolve <T>(this ICriteria criteria,
string prefix)
{
object obj;
string hash = prefix + ":" + criteria.Fields.Join(":");
if (mappers_.TryGetValue(hash, out obj))
{
return((IDataReaderMapper <T>)obj);
}
var builder = new DataReaderMapperBuilder <T>();
foreach (var field in criteria.Fields)
{
string map = criteria.GetFieldMap(field);
builder.Map(field, map);
}
IDataReaderMapper <T> mapper = builder.Build();
mappers_.Add(hash, mapper);
return(mapper);
}
/// <summary>
/// Initializes a new instance of the <see cref="QueryMapper{T}"/>
/// </summary>
/// <param name="mapper">
/// A <see cref="IDataReaderMapper{T}"/> that should be used to map
/// the data containined into the <paramref name="reader"/> to a
/// object or a collection of objects of the type <typeparamref name="T"/>.
/// </param>
/// <param name="reader">
/// A <see cref="IDataReader"/> to fetch the data.
/// </param>
public QueryMapper(IDataReaderMapper <T> mapper, IDataReader reader)
: this(mapper, reader, Enumerable.Empty <IDisposable>())
{
}
/// <summary>
/// Initializes a new instance of the <see cref="NextHiQuery"/>
/// using the given <param ref="sql_connection_provider" />
/// </summary>
/// <param name="sql_connection_provider">
/// A <see cref="SqlConnectionProvider"/> object that can be used to
/// create connections to the data provider.
/// </param>
public NextHiQuery(SqlConnectionProvider sql_connection_provider) {
sql_connection_provider_ = sql_connection_provider;
logger_ = MustLogger.ForCurrentProcess;
mapper_ = CreateMapper();
}
/// <summary>
/// Initializes a new instance of the <see cref="NextHiQuery"/>
/// using the given <param ref="sql_connection_provider" />
/// </summary>
/// <param name="sql_connection_provider">
/// A <see cref="SqlConnectionProvider"/> object that can be used to
/// create connections to the data provider.
/// </param>
public NextHiQuery(SqlConnectionProvider sql_connection_provider)
{
sql_connection_provider_ = sql_connection_provider;
logger_ = MustLogger.ForCurrentProcess;
mapper_ = CreateMapper();
}
/// <summary>
/// Initializes a new instance of the <see cref="IdleTimeAtTimeQuery"/>
/// using the given <param ref="sql_connection_provider" />
/// </summary>
/// <param name="sql_connection_provider">
/// A <see cref="SqlCeConnectionProvider"/> object that can be used to
/// create connections to the data provider.
/// </param>
public IdleTimeAtTimeQuery(SqlCeConnectionProvider sql_connection_provider)
{
sql_connection_provider_ = sql_connection_provider;
logger_ = AionLogger.ForCurrentProcess;
mapper_ = Mappers.IdleTimeInfo();
}
