Java 8 Lambda Stream forEach with multiple statements

Question

I am still in the process of learning Lambda, please excuse me If I am doing something wrong

final Long tempId = 12345L;
List updatedEntries = new L         


        

Answer 1

You don't have to cram multiple operations into one stream/lambda. Consider separating them into 2 statements (using static import of toList()):

entryList.forEach(e->e.setTempId(tempId));

List updatedEntries = entryList.stream()
  .map(e->entityManager.update(entry, entry.getId()))
  .collect(toList());