public ColumnDescriptor GetCollectionColumn()
{
var collectionInfo = DataSchema.GetCollectionInfo(PropertyType);
if (null == collectionInfo)
{
return(null);
}
return(new Collection(this, collectionInfo));
}
public ColumnDescriptor ResolveChild(string name)
{
if (PropertyType == null)
{
return(null);
}
if (name == null)
{
var collectionInfo = DataSchema.GetCollectionInfo(PropertyType);
if (collectionInfo != null)
{
return(new ColumnDescriptor(this, collectionInfo));
}
}
var propertyDescriptor = DataSchema.GetPropertyDescriptor(PropertyType, name);
if (propertyDescriptor == null)
{
return(null);
}
return(new ColumnDescriptor(this, propertyDescriptor));
}
private ColumnDescriptor GetColumnDescriptor(IDictionary <IdentifierPath, ColumnSpec> columnSpecs, IdentifierPath idPath)
{
ColumnDescriptor columnDescriptor;
if (_columnDescriptors.TryGetValue(idPath, out columnDescriptor))
{
return(columnDescriptor);
}
var parent = GetColumnDescriptor(columnSpecs, idPath.Parent);
if (parent == null)
{
throw new InvalidOperationException("Could not resolve path " + idPath);
}
if (idPath.Name != null)
{
columnDescriptor = new ColumnDescriptor(parent, idPath.Name);
}
else
{
var collectionInfo = DataSchema.GetCollectionInfo(parent.PropertyType);
if (collectionInfo == null)
{
throw new InvalidOperationException(parent.PropertyType + " is not a collection.");
}
columnDescriptor = new ColumnDescriptor(parent, collectionInfo);
}
ColumnSpec columnSpec;
if (columnSpecs.TryGetValue(idPath, out columnSpec))
{
columnDescriptor = columnDescriptor.SetColumnSpec(columnSpec);
}
_columnDescriptors.Add(idPath, columnDescriptor);
return(columnDescriptor);
}