带有Couchbase的Spring中的原子计数器 [英] Atomic counters in Spring with Couchbase

问题描述

是否可以使用Couchbase的原子计数器使用弹簧连接器?目前，我有一个用于特定文档类型的存储库，并且希望每个文档都具有一个原子计数器.我知道Java SDK提供了该功能，但是我找不到与Spring等效的操作.

Is it possible to use Couchbase's Atomic Counters with the Spring Connector? Currently I have a repository for a specific document type and want to have an atomic counter for every document. I know that the Java SDK offers the functionality but I was not able to find an equivalent action for Spring.

推荐答案

我知道Spring不支持计数器，但是编写自己的存储库非常简单:

As I know Spring doesn't have support for counters but it's pretty simple to write own repository:

@Repository
public class CountersRepository {

    private static final long INITIAL_COUNTER_VALUE = 1;

    @Autowired
    private Bucket bucket;

    public void incCounter(final String counter) {
        bucket.counter(counter, 1, INITIAL_COUNTER_VALUE);
    }

    public void decCounter(final String counter) {
        bucket.counter(counter, -1, INITIAL_COUNTER_VALUE);
    }

    public Long getCounterValue(final String counter) {
        return bucket.counter(counter, 0).content();
    }

}

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