ImmutableSetMultitable.java 文件源码

public ImmutableSetMultitable<R, C, V> build() {
  final ImmutableTable.Builder<R, C, Collection<V>> immutableTable =
      ImmutableTable.builder();

  int size = 0;
  ImmutableSet.Builder<R> rowIterationBuilder = ImmutableSet.builder();
  ImmutableSet.Builder<C> columnIterationBuilder = ImmutableSet.builder();

  for (final RowKeyColumnKeyPair<R, C> rowKeyColKey : rowInsertionOrder.build()) {
    final ImmutableSet<V> valuesForPair =
        tableWeCanLookUpIn.get(rowKeyColKey.row(), rowKeyColKey.column()).build();
    size += valuesForPair.size();
    immutableTable.put(rowKeyColKey.row(), rowKeyColKey.column(),
        valuesForPair);
    rowIterationBuilder.add(rowKeyColKey.row());
    columnIterationBuilder.add(rowKeyColKey.column());
  }

  return new ImmutableSetMultitable<>(immutableTable.build(), size, rowIterationBuilder.build(),
      columnIterationBuilder.build());
}