How to use

cacheExists

method

in

org.dd4t.caching.providers.AbstractEHCacheProvider

/**
 * Store given item in the cache with a simple time-to-live property.
 *
 * @param key          String representing the key to store the payload under
 * @param cacheElement CacheElement a wrapper around the actual value to store in
 *                     cache
 */
@Override
public <T> void storeInItemCache(String key, CacheElement<T> cacheElement) {
  if (!isEnabled()) {
    return;
  }
  if (!cacheExists()) {
    LOG.error("Cache configuration is invalid! NOT Caching. Check EH Cache configuration.");
    return;
  }
  // detect undeclared nulls, complain, and set to null
  if (!cacheElement.isNull() && cacheElement.getPayload() == null) {
    Exception exToLogToHaveStacktraceWhoCausedIt = new Exception();
    LOG.error("Detected undeclared null payload on element with key " + key + " at insert time!",
        exToLogToHaveStacktraceWhoCausedIt);
    cacheElement.setNull(true);
  }
  cacheElement.setExpired(false);
  storeElement(key, cacheElement);
}