/// <summary>
/// Create a GroupByTransformationNode.
/// </summary>
/// <param name="groupingProperties">A list of <see cref="GroupByPropertyNode"/>.</param>
/// <param name="childTransformation">The child <see cref="TransformationNode"/>.</param>
/// <param name="source">The <see cref="CollectionNode"/> representing the source.</param>
public GroupByTransformationNode(
IList <GroupByPropertyNode> groupingProperties,
TransformationNode childTransformation,
CollectionNode source)
{
ExceptionUtils.CheckArgumentNotNull(groupingProperties, "groupingProperties");
this.groupingProperties = groupingProperties;
this.childTransformation = childTransformation;
this.source = source;
}
/// <summary>
/// Create a GroupByTransformationNode.
/// </summary>
/// <param name="groupingProperties">A list of <see cref="GroupByPropertyNode"/>.</param>
/// <param name="childTransformation">The child <see cref="TransformationNode"/>.</param>
/// <param name="source">The <see cref="CollectionNode"/> representing the source.</param>
public GroupByTransformationNode(
IList<GroupByPropertyNode> groupingProperties,
TransformationNode childTransformation,
CollectionNode source)
{
ExceptionUtils.CheckArgumentNotNull(groupingProperties, "groupingProperties");
this.groupingProperties = groupingProperties;
this.childTransformation = childTransformation;
this.source = source;
}
internal AggregationBinder(ODataQuerySettings settings, IAssembliesResolver assembliesResolver, Type elementType, IEdmModel model, TransformationNode transformation)
: base(model, assembliesResolver, settings)
{
Contract.Assert(elementType != null);
Contract.Assert(transformation != null);
_elementType = elementType;
_transformation = transformation;
this._lambdaParameter = Expression.Parameter(this._elementType, "$it");
switch (transformation.Kind)
{
case TransformationNodeKind.Aggregate:
var aggregateClause = this._transformation as AggregateTransformationNode;
_aggregateStatements = aggregateClause.Statements;
ResultClrType = AggregationDynamicTypeProvider.GetResultType<DynamicTypeWrapper>(_model, null, _aggregateStatements);
break;
case TransformationNodeKind.GroupBy:
var groupByClause = this._transformation as GroupByTransformationNode;
_groupingProperties = groupByClause.GroupingProperties;
if (groupByClause.ChildTransformation != null)
{
if (groupByClause.ChildTransformation.Kind == TransformationNodeKind.Aggregate)
{
_aggregateStatements = ((AggregateTransformationNode)groupByClause.ChildTransformation).Statements;
}
else
{
throw new NotImplementedException();
}
}
_groupByClrType = AggregationDynamicTypeProvider.GetResultType<DynamicTypeWrapper>(_model, _groupingProperties, null);
ResultClrType = AggregationDynamicTypeProvider.GetResultType<DynamicTypeWrapper>(_model, _groupingProperties, _aggregateStatements);
break;
default:
throw new NotSupportedException(String.Format(CultureInfo.InvariantCulture, SRResources.NotSupportedTransformationKind, transformation.Kind));
}
_groupByClrType = _groupByClrType ?? typeof(DynamicTypeWrapper);
}