How to use

update

method

in

org.springframework.batch.repeat.support.RepeatTemplate

/**
 * Get the next completed result, possibly executing several callbacks until
 * one finally finishes. Normally a subclass would have to override both
 * this method and {@link #createInternalState(RepeatContext)} because the
 * implementation of this method would rely on the details of the internal
 * state.
 * 
 * @param context current BatchContext.
 * @param callback the callback to execute.
 * @param state maintained by the implementation.
 * @return a finished result.
 * @throws Throwable any Throwable emitted during the iteration
 * 
 * @see #isComplete(RepeatContext)
 * @see #createInternalState(RepeatContext)
 */
protected RepeatStatus getNextResult(RepeatContext context, RepeatCallback callback, RepeatInternalState state)
    throws Throwable {
  update(context);
  if (logger.isDebugEnabled()) {
    logger.debug("Repeat operation about to start at count=" + context.getStartedCount());
  }
  return callback.doInIteration(context);
}

/**
 * Get the next completed result, possibly executing several callbacks until
 * one finally finishes. Normally a subclass would have to override both
 * this method and {@link #createInternalState(RepeatContext)} because the
 * implementation of this method would rely on the details of the internal
 * state.
 * 
 * @param context current BatchContext.
 * @param callback the callback to execute.
 * @param state maintained by the implementation.
 * @return a finished result.
 * @throws Throwable any Throwable emitted during the iteration
 * 
 * @see #isComplete(RepeatContext)
 * @see #createInternalState(RepeatContext)
 */
protected RepeatStatus getNextResult(RepeatContext context, RepeatCallback callback, RepeatInternalState state)
    throws Throwable {
  update(context);
  if (logger.isDebugEnabled()) {
    logger.debug("Repeat operation about to start at count=" + context.getStartedCount());
  }
  return callback.doInIteration(context);
}