@Override
  public boolean isKeyCached(String idempotentId) {
    return knownValues.containsKey(idempotentId);
  }
A {@link IdempotentImportExecutor} that stores known values in memory.
portability-spi-transfer/src/main/java/org/datatransferproject/spi/transfer/idempotentexecutor/RetryingInMemoryIdempotentImportExecutor.java