I have an interesting problem, I need to figure out which files I have not processed.

I have an object called ReturnFile(return_files) that stores the ones I’ve processed. I’d like to issue a query that has a parameter Set<String> called availableFiles, and have it return just the strings from my supplied Set that are not in the database.

@Entity
ReturnFile {
  @Column
  private String fileName;
}

Thank you for any help. I’m struggling to figure out how to do this even with plain JDBC parameters.