protected override void Expand()
{
// Build a selector of table values which were non-empty
int[] indices = new int[_assignedIndices.Length];
byte[] metadata = this.Metadata;
int count = 0;
for (int i = 0; i < indices.Length; ++i)
{
if (metadata[i] != 0)
{
indices[count++] = i;
}
}
// Save the old keys, ranks, and row indices in arrays
XArray[] keyArrays = new XArray[_keys.Length];
for (int i = 0; i < _keys.Length; ++i)
{
keyArrays[i] = XArray.All(_keys[i].Values).Reselect(ArraySelector.Map(indices, count));
}
XArray indicesArray = XArray.All(_assignedIndices).Reselect(ArraySelector.Map(indices, count));
// Expand the table
Reset(HashCore.ResizeToSize(_assignedIndices.Length));
// Add items to the enlarged table
FindOrAdd(keyArrays, indicesArray);
}
public GroupByDictionary(ColumnDetails[] keyColumns, int initialCapacity = -1)
{
_keyColumns = keyColumns;
// Create a strongly typed column for each key
_keys = new IDictionaryColumn[keyColumns.Length];
for (int i = 0; i < keyColumns.Length; ++i)
{
_keys[i] = (IDictionaryColumn)Allocator.ConstructGenericOf(typeof(DictionaryColumn <>), keyColumns[i].Type);
}
// Allocate the arrays for the keys and values themselves
Reset(HashCore.SizeForCapacity(initialCapacity));
}
protected override void Expand()
{
// Save the current Keys/Values/Metadata
T[] oldKeys = _keys;
U[] oldValues = _values;
byte[] oldMetaData = this.Metadata;
// Expand the table
Reset(HashCore.ResizeToSize(_keys.Length));
// Add items to the enlarged table
for (int i = 0; i < oldMetaData.Length; ++i)
{
if (oldMetaData[i] > 0)
{
Add(oldKeys[i], oldValues[i]);
}
}
}
public ChooseDictionary(ChooseDirection direction, ColumnDetails rankColumn, ColumnDetails[] keyColumns, int initialCapacity = -1)
{
_chooseDirection = direction;
_keyColumns = keyColumns;
_rankColumn = rankColumn;
// Create a strongly typed column for each key
_keys = new IDictionaryColumn[keyColumns.Length];
for (int i = 0; i < keyColumns.Length; ++i)
{
_keys[i] = (IDictionaryColumn)Allocator.ConstructGenericOf(typeof(DictionaryColumn <>), keyColumns[i].Type);
}
// Create a strongly typed column to hold rank values
_ranks = (IDictionaryColumn)Allocator.ConstructGenericOf(typeof(DictionaryColumn <>), rankColumn.Type);
_bestRowIndices = (IDictionaryColumn)Allocator.ConstructGenericOf(typeof(DictionaryColumn <>), typeof(int));
// Allocate the arrays for the keys and values themselves
Reset(HashCore.SizeForCapacity(initialCapacity));
}
public Dictionary5(IEqualityComparer <T> comparer, int initialCapacity = -1)
{
_comparer = comparer;
Reset(HashCore.SizeForCapacity(initialCapacity));
}