default <T> T read(int opId, Object ... args) {
    throw new SamzaException("Not supported");
  }
Executes a read operation. opId is used to allow tracking of different
types of operation.
@param opId operation identifier
@param args additional arguments
@param <T> return type
@return read result
samza-api/src/main/java/org/apache/samza/table/ReadWriteUpdateTable.java