How to use

addDependency

method

in

org.dd4t.caching.providers.EHCacheProvider

@Override
public <T> void storeInItemCache(String key, CacheElement<T> cacheElement, List<CacheDependency> dependencies) {
  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);
  Element element = cache.get(key);
  if (element == null) {
    element = new Element(key, cacheElement);
  }
  cache.put(element);
  element.setTimeToLive(cacheDependencyTTL);
  for (CacheDependency dep : dependencies) {
    String dependentKey = getKey(dep.getPublicationId(), dep.getItemId());
    cacheElement.setDependentKey(dependentKey);
    addDependency(key, dependentKey);
    updateTTL(dependencyCache.get(dependentKey));
  }
}

addDependency(key, dependencyKey);