/// <summary>
/// Executes an SQL statement against the current provider
/// and builds a typed collection of elements using the
/// specified <paramref name="materializer"/>.
/// </summary>
/// <typeparam name="TEntity">The type of a collection element.</typeparam>
/// <param name="materializer">A materialization service used to convert the data row to
/// an instance of the specified type.</param>
public IEnumerable <TEntity> AsEntitySet <TEntity>(IDbMaterializer <TEntity> materializer)
{
Precondition.Require(_command, () => Error.CommandIsNotInitialized());
Precondition.Require(materializer, () => Error.ArgumentNull("materializer"));
return(ExecuteOnce((command) => DataReaderConverter(command, reader =>
new ObjectReader <TEntity>(new DbQueryResultReader(reader), materializer.Materialize))));
}
public ObjectEnumerator(IDbDataReader reader, IDbMaterializer <TEntity> materializer)
{
Precondition.Require(reader, () => Error.ArgumentNull("reader"));
Precondition.Require(materializer, () => Error.ArgumentNull("materializer"));
_reader = reader;
_enumerator = _reader.GetEnumerator();
_translator = materializer.Materialize;
}
/// <summary>
/// Initializes a new instance of the
/// <see cref="Radischevo.Wahha.Data.DbCombinedSelectOperation{TEntity}"/> class.
/// </summary>
/// <param name="materializer">The <see cref="Radischevo.Wahha.Data.IDbMaterializer{TEntity}"/>
/// used to transform database query results into objects.</param>
protected DbCombinedSelectOperation(IDbMaterializer <TEntity> materializer)
: base(materializer)
{
}
/// <summary>
/// Initializes a new instance of the
/// <see cref="Radischevo.Wahha.Data.DbSubsetOperation{TEntity}"/> class.
/// </summary>
/// <param name="materializer">The <see cref="Radischevo.Wahha.Data.IDbMaterializer{TEntity}"/>
/// used to transform database query results into objects.</param>
protected DbSubsetOperation(IDbMaterializer <TEntity> materializer)
: base(materializer)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="Radischevo.Wahha.Data.DbQueryOperation{TEntity,TResult}"/> class.
/// </summary>
protected DbQueryOperation(IDbMaterializer <TEntity> materializer)
{
Materializer = materializer;
}
