private void OutputSchemaList_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
// Populate type-list with possible tables. Type-list filling is provided by a Space function (not all types are possible because of cycles and maybe other constraints)
OutputTables.Clear();
if (SelectedOutputSchema != null)
{
// Rules/constraints:
// - Generating columns (returning tuples) cannot target a primitive type
// - Import/export is always generating column so cannot target a primitive type
// - Can we have generating column cycles?
// - Can we have import/export cycles?
// Add primitive tables
var primitiveTables = SelectedOutputSchema.SubTables.Where(x => x != SelectedOutputSchema.Root).ToList();
primitiveTables.ForEach(x => OutputTables.Add(x));
// Add non-primitive tables (only possible/meainingful)
List <DcTable> outputTables;
if (SelectedOutputSchema == Table.Schema) // Intra-schema link
{
outputTables = MappingModel.GetPossibleGreaterSets(Table);
}
else // Import-export link - all tables
{
outputTables = SelectedOutputSchema.Root.SubTables;
}
outputTables.ForEach(x => OutputTables.Add(x));
}
}
public PathMappingBox(DcColumn column)
{
this.okCommand = new DelegateCommand(this.OkCommand_Executed, this.OkCommand_CanExecute);
InitializeComponent();
if (column.Input.Columns.Contains(column))
{
IsNew = false;
}
else
{
IsNew = true;
}
Column = column;
DcTable sourceTable = column.Input;
DcTable targetTable = column.Output;
// Name
NewColumnName = Column.Name;
// Compute possible target tables
TargetTables = new ObservableCollection <DcTable>(MappingModel.GetPossibleGreaterSets(sourceTable));
// TODO: Suggest the best target type
if (targetTable == null)
{
// Compare the quality of gest mappings from the the source set to possible target sets
DcTable bestTargetTable = TargetTables.Count > 0 ? TargetTables[0] : null;
double bestSimilarity = 0.0;
/*
* foreach (ComTable set in targetTables)
* {
* ComColumn dim2 = set.CreateDefaultLesserDimension(dim.Name, dim.Input);
*
* List<Mapping> mappings = m.MapDim(new DimPath(dim), new DimPath(dim2));
* if (mappings[0].Similarity > bestSimilarity) { bestTargetTable = set; bestSimilarity = mappings[0].Similarity; }
* m.Mappings.Clear();
* }
*/
targetTable = bestTargetTable;
}
targetTables.SelectedItem = targetTable;
// In edit mode (for existing column), we do not allow for changing the type
if (!IsNew)
{
targetTables.IsEnabled = false;
}
MappingModel = new MappingModel(sourceTable, targetTable);
if (!IsNew)
{
MappingModel.Mapping = Column.Definition.Mapping;
}
RefreshAll();
}
private void removeMatchButton_Click(object sender, RoutedEventArgs e)
{
MappingModel.RemoveMatch();
// Redraw both trees. Use property name like "CanMatch" or String.Empty for all properties (but it does not work because selection is also updated)
MappingModel.SourceTree.NotifyAllOnPropertyChanged("CanMatch");
MappingModel.TargetTree.NotifyAllOnPropertyChanged("CanMatch");
MappingModel.SourceTree.NotifyAllOnPropertyChanged("IsMatched");
MappingModel.TargetTree.NotifyAllOnPropertyChanged("IsMatched");
}
private void TargetSchemaList_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
TargetTables.Clear();
if (SelectedTargetSchema != null)
{
List <DcTable> targetTables;
if (SelectedTargetSchema == Column.Input.Schema) // Intra-schema link
{
targetTables = MappingModel.GetPossibleGreaterSets(Column.Input);
}
else // Import-export link
{
targetTables = SelectedTargetSchema.Root.SubTables;
}
targetTables.ForEach(x => TargetTables.Add(x));
}
FillEntriesTypes();
RefreshAll();
}
private void recommendButton_Click(object sender, RoutedEventArgs e)
{
MappingModel.SelectBestTarget();
targetTree.Select(MappingModel.TargetTree.SelectedNode);
}
public AggregationBox(DcColumn column, DcColumn measureColumn)
{
this.okCommand = new DelegateCommand(this.OkCommand_Executed, this.OkCommand_CanExecute);
InitializeComponent();
if (column.Input.Columns.Contains(column))
{
IsNew = false;
}
else
{
IsNew = true;
}
Column = column;
SourceTable = column.Input;
newColumnName.Text = Column.Name;
// Initialize all possible fact tables (lesser tables)
FactTables = MappingModel.GetPossibleLesserSets(SourceTable);
if (!IsNew)
{
FactTable = Column.Definition.FactTable;
}
else
{
if (FactTables.Count == 1)
{
FactTable = FactTables[0];
}
}
// By setting a fact table here we trigger item selection event where two controls will be filled: grouping paths and measure paths.
// Use additional parameter for selecting desired measure
if (IsNew && measureColumn != null)
{
// Find at least one fact table that has a measure path to this measure column
foreach (DcTable table in FactTables)
{
var pathEnum = new PathEnumerator(
table,
measureColumn.Output,
DimensionType.IDENTITY_ENTITY
);
var paths = pathEnum.ToList();
if (paths.Count() == 0)
{
continue;
}
FactTable = table; // Here the list of measure paths has to be filled automatically
MeasurePath = paths[0];
}
}
// Initialize aggregation functions
AggregationFunctions = new List <string>(new string[] { "COUNT", "SUM", "MUL" });
if (!IsNew)
{
AggregationFunction = Column.Definition.Updater;
}
else
{
AggregationFunction = "SUM";
}
RefreshAll();
}
} // Another tree
public MatchTree(MappingModel model)
: base()
{
MappingModel = model;
}
