Why is the nxxx parameter of set() in Jedis exclusive?

Question

In Jedis, I want to set some key and value with expiring time by a single invocation.

I can do this by combination of set() and expire() but it needs two invocations.

I found the following method:

set(final String key, final String value, final String nxxx, final String expx, final long time)

But I have to choose nx (Only set the key if it does not already exist.) or xx (Only set the key if it already exist.).

I want to cover both cases.

Any suggestion? Or any reason to be written like this?

Answer 1

Redis has a SETEX command, which sets the key with an expiry.

jedis.setex(key, expireAfter, value);