我正在尝试重写这个复杂的double-for循环，这似乎有点贵，我认为使用流重写它可以提高可读性，甚至可以避免不必要的循环迭代。
我想在这里转换这个命令式代码：

public Documents clearDocuments(List<Document> toDeleteDocs) {
    Documents softDeleteList = new Documents();
    List<EntityKeyVersion> deleteList = entityManager.bulkDeleteEntities(ekList,EntityClient.DeleteMode.SOFT_DELETE);
    for (Document doc : toDeleteDocs) {
        for (EntityKeyVersion ekv : deleteList) {
            if (ekv.getEntityKey().contentEquals(doc.getEntityKey())) {
                doc.setVersion((ekv.getEntityVersion()));
                softDeleteList.getDocument().add(doc);
            } else if (softDeleteList.getDocument().size() == deleteList.size()) {
                break; // once soft delete list is fully populated, break out of loop to save unnecessary iterations
            }
        }
    }
    return softDeleteList;
}

要利用Java8流，
这是我迄今为止尝试的，我认为我有双循环下降，但内部条件作为过滤器可能是错误的，似乎我错过了不少：

Documents softDeleteList = new Documents();
List<EntityKeyVersion> deleteList = entityManager.bulkDeleteEntities(ekList,EntityClient.DeleteMode.SOFT_DELETE);

return softDeleteList.getDocument().stream()
        .filter(doc -> deleteList.stream()
                        .peek(jh -> )
                        .anyMatch(ekv -> ekv.getEntityKey().contentEquals(doc.getEntityKey())))
                        .collect(Collectors.toList());

如果您有任何帮助或帮助，我们将不胜感激，谢谢