protected override IEnumerable<Field> CreateFields()
{
_iterator = new FieldMapperIterator(FieldMappers);
if (!InlineFields)
{
LookupTableBuilder = CreateLookupBuilder();
if (LookupTableBuilder.Schema.Keys.Length == 0)
{
LookupTableBuilder.AddHashKey(HashKeyFactory);
}
}
return GetFields(InlineFields ? FieldTarget.Inline : FieldTarget.KeyReference).ToArray();
}
protected void UpdateSchema()
{
//Add fields to schema order by field type, then source index
Schema.Fields =
_fieldList.AsIndexed()
.OrderBy(f => f.Value.FieldType == FieldType.Key ? 0 : f.Value.FieldType == FieldType.Fact ? 2 : 1)
.ThenBy(f => f.Index)
.Select(f => f.Value)
.ToArray();
Schema.CalculatedFields =
FieldMappers.OfType <ICalculatedFieldContainer>().SelectMany(c => c.CalculatedFields).ToList();
Iterator = new FieldMapperIterator(FieldMappers, Schema.Fields);
_rowComparer = new RowComparer(Schema);
RowMap = new Dictionary <object[], object[]>(_rowComparer);
HashKey = _hashKeyField != null?Array.IndexOf(Schema.Fields, _hashKeyField) : (int?)null;
if (HashKey.HasValue)
{
HashIndices = Schema.Keys.Concat(Schema.Dimensions).Where(fp => fp.Index != HashKey).Select(fp => fp.Index).ToArray();
}
_parentReferenceIndices.Clear();
if (_parentReferences.Count > 0)
{
foreach (var field in Schema.Fields.AsIndexed())
{
int parentIndex;
if (_parentReferences.TryGetValue(field.Value, out parentIndex))
{
_parentReferenceIndices.Add(new KeyValuePair <int, int>(parentIndex, field.Index));
}
}
}
_emptyRow =
Schema.Fields
.Select(
f => f.DefaultValue ?? (f.ValueType.IsValueType ? Activator.CreateInstance(f.ValueType) : null))
.ToArray();
}
protected void UpdateSchema()
{
//Add fields to schema order by field type, then source index
Schema.Fields =
_fieldList.AsIndexed()
.OrderBy(f => f.Value.FieldType == FieldType.Key ? 0 : f.Value.FieldType == FieldType.Fact ? 2 : 1)
.ThenBy(f => f.Index)
.Select(f => f.Value)
.ToArray();
Schema.CalculatedFields =
FieldMappers.OfType<ICalculatedFieldContainer>().SelectMany(c => c.CalculatedFields).ToList();
Iterator = new FieldMapperIterator(FieldMappers, Schema.Fields);
_rowComparer = new RowComparer(Schema);
RowMap = new Dictionary<object[], object[]>(_rowComparer);
HashKey = _hashKeyField != null ? Array.IndexOf(Schema.Fields, _hashKeyField) : (int?) null;
if (HashKey.HasValue)
{
HashIndices = Schema.Keys.Concat(Schema.Dimensions).Where(fp=>fp.Index != HashKey).Select(fp => fp.Index).ToArray();
}
_parentReferenceIndices.Clear();
if (_parentReferences.Count > 0)
{
foreach (var field in Schema.Fields.AsIndexed())
{
int parentIndex;
if (_parentReferences.TryGetValue(field.Value, out parentIndex))
{
_parentReferenceIndices.Add(new KeyValuePair<int, int>(parentIndex, field.Index));
}
}
}
_emptyRow =
Schema.Fields
.Select(
f => f.DefaultValue ?? (f.ValueType.IsValueType ? Activator.CreateInstance(f.ValueType) : null))
.ToArray();
}
