How to use

containsKey

method

in

org.apache.ignite.internal.processors.cache.IgniteInternalCache

/** {@inheritDoc} */
@Override public boolean containsKeys(Collection keys) {
  return delegate.get().containsKey(transform(keys));
}

/** {@inheritDoc} */
@Override public boolean containsKey(K key) {
  IgniteInternalCache<K, V> delegate = getDelegateSafe();
  if (isAsync()) {
    setFuture(delegate.containsKeyAsync(key));
    return false;
  }
  else
    return delegate.containsKey(key);
}

/** {@inheritDoc} */
@Override public boolean containsKey(Object key) {
  return delegate.get().containsKey(keyTransformer.transform(key));
}

/** {@inheritDoc} */
@Override public boolean containsKey(K key) {
  if (isAsync()) {
    setFuture(delegate.containsKeyAsync(key));
    return false;
  }
  else
    return delegate.containsKey(key);
}

/** {@inheritDoc} */
@Override public boolean containsKey(K key) {
  CacheOperationContext prev = gate.enter(opCtx);
  try {
    return delegate.containsKey(key);
  }
  finally {
    gate.leave(prev);
  }
}

@Override public <K> boolean containsKey(String cacheName, K key) {
  return ctx.cache().cache(cacheName).containsKey(key);
}

if (separated && (cache == null || !cache.containsKey(new GridCacheSetHeaderKey(dsName)))) {
  cacheName += "#" + dsType.name() + "_" + dsName;

/**
 * Success if explicit tx doesn't fail.
 *
 * @param cache Cache instance.
 * @throws Exception If failed.
 */
protected void checkStartTxSuccess(final IgniteInternalCache<Object, Object> cache) throws Exception {
  try (final GridNearTxLocal tx = CU.txStartInternal(cache.context(), cache, PESSIMISTIC, REPEATABLE_READ)) {
    assert tx != null;
    sleepForTxFailure();
    cache.put("key", "val");
    tx.commit();
  }
  assert cache.containsKey("key");
  cache.clear();
}

long jobPrepare = U.currentTimeMillis();
if (jobs.containsKey(jobId) || jobMetaCache().containsKey(jobId))
  throw new IgniteCheckedException("Failed to submit job. Job with the same ID already exists: " + jobId);

/** {@inheritDoc} */
@Override public boolean containsKey(K key) {
  CacheOperationContext prev = gate.enter(opCtx);
  try {
    return delegate.containsKey(key);
  }
  finally {
    gate.leave(prev);
  }
}

@Override public <K> boolean containsKey(String cacheName, K key) {
  return ctx.cache().cache(cacheName).containsKey(key);
}

if (separated && (cache == null || !cache.containsKey(new GridCacheSetHeaderKey(dsName)))) {
  cacheName += "#" + dsType.name() + "_" + dsName;