@Override
    public ColumnFamilyDescriptor getColumnFamily(final byte[] column) {
      return this.families.get(column);
    }
Returns the ColumnFamilyDescriptor for a specific column family with name as specified by the
parameter column.
@param column Column family name
@return Column descriptor for the passed family name or the family on passed in column.
hbase-client/src/main/java/org/apache/hadoop/hbase/client/TableDescriptorBuilder.java