/// <summary>
/// Add the next set of values; return the ID that was allocated.
/// </summary>
/// <remarks>
/// This only supports appending all the sets of values ID by ID in order.
/// TODO: allow more flexible building.
/// </remarks>
public virtual TId Add(ReadOnlySpan <TValue> multiValues)
{
if (SingleValues.Count > 0)
{
Offsets.Add(Offsets[Count - 1] + SingleValues[Count - 1]);
}
else
{
Offsets.Add(0);
}
SingleValues.Add(multiValues.Length);
MultiValues.AddRange(multiValues);
return(default(TId).ToId(Count));
}
/// <summary>
/// All relationships have been added; sort them all and build the final relation table.
/// </summary>
public void Complete()
{
m_list.AsSpan().Sort((tuple1, tuple2) =>
{
int fromIdCompare = tuple1.fromId.FromId().CompareTo(tuple2.fromId.FromId());
if (fromIdCompare != 0)
{
return(fromIdCompare);
}
return(tuple1.toId.FromId().CompareTo(tuple2.toId.FromId()));
});
// and bin them by groups
int listIndex = 0;
SpannableList <TToId> buffer = new SpannableList <TToId>();
int listCount = m_list.Count;
Table.SetMultiValueCapacity(listCount);
foreach (TFromId id in Table.BaseTableOpt.Ids)
{
if (listIndex >= m_list.Count)
{
// ran outta entries, rest all 0
break;
}
// Count up how many are for id.
int count = 0;
buffer.Clear();
// create a to-ID that will never equal any other ID (even default)
TToId lastToId = default(TToId).ToId(-1);
while (listIndex + count < m_list.Count)
{
var(fromId, toId) = m_list[listIndex + count];
if (fromId.Equals(id))
{
// drop duplicates (silently...)
// TODO: are duplicates here a logic bug? Because they do happen in practice.
if (!toId.Equals(lastToId))
{
buffer.Add(toId);
}
count++;
lastToId = toId;
continue;
}
// ok we're done
break;
}
Table.Add(buffer.AsSpan());
listIndex += count;
}
}
/// <summary>
/// Add the next set of values; return the ID that was allocated.
/// </summary>
/// <remarks>
/// This only supports appending all the sets of values ID by ID in order.
/// TODO: allow more flexible building.
/// </remarks>
public virtual TId Add(ReadOnlySpan <TValue> multiValues)
{
if (BaseTableOpt != null && SingleValues.Count == BaseTableOpt.Count)
{
throw new Exception("Can't add to end of a table that has already been filled");
}
if (SingleValues.Count > 0)
{
Offsets.Add(Offsets[Count - 1] + SingleValues[Count - 1]);
}
else
{
Offsets.Add(0);
}
SingleValues.Add(multiValues.Length);
MultiValues.AddRange(multiValues);
return(default(TId).CreateFrom(Count));
}