code: public boolean isAllBroadcastTables(final Collection<String> logicTableNames) {
          if (logicTableNames.isEmpty()) {
              return false;
          }
          for (String each : logicTableNames) {
              if (!isBroadcastTable(each)) {
                  return false;
              }
          }
          return true;
      }
docs: Judge logic tables is all belong to broadcast encryptors.
  
  @param logicTableNames logic table names
  @return logic tables is all belong to broadcast encryptors or not