Retrying Operations using Spring's RetryTemplate

RetryTemplate.

The example below shows how you can use a RetryTemplate to lookup a remote object. If the remote call fails, it will be retried five times with exponential backoff.

// import the necessary classes

import org.springframework.batch.retry.RetryCallback;

import org.springframework.batch.retry.RetryContext;

import org.springframework.batch.retry.backoff.ExponentialBackOffPolicy;

import org.springframework.batch.retry.policy.SimpleRetryPolicy;

import org.springframework.batch.retry.support.RetryTemplate;
...
 
// create the retry template

final RetryTemplate template = new RetryTemplate();

template.setRetryPolicy(new SimpleRetryPolicy(5));

final ExponentialBackOffPolicy backOffPolicy = new ExponentialBackOffPolicy();
backOffPolicy.setInitialInterval(1000L);
template.setBackOffPolicy(backOffPolicy);
 
// execute the operation using the retry template

template.execute(new RetryCallback<Remote>() {

  @Override

  public Remote doWithRetry(final RetryContext context) throws Exception {

    return (Remote) Naming.lookup("rmi://somehost:2106/MyApp");

  }
});