Method column

corpus/java/training/guava/collect/ArrayTable.java:585–590

Returns a view of all mappings that have the given column key. If the column key isn't in #columnKeySet(), an empty immutable map is returned. Otherwise, for each row key in #rowKeySet(), the returned map associates the row key with the corresponding value in the table. Changes t

(C columnKey)

   * @return the corresponding map from row keys to values
   */
  @Override
  public Map<R, V> column(C columnKey) {
    checkNotNull(columnKey);
    Integer columnIndex = columnKeyToIndex.get(columnKey);
    return (columnIndex == null) ? ImmutableMap.<R, V>of() : new Column(columnIndex);
  }

  private class Column extends ArrayMap<R, V> {
    final int columnIndex;