CODEWITHSUNDEEP
gridgain
user2415528
user2415528

Reputation: 31

Grid Gain atomic get-modify-put

What's the best way to atomically modify an object in GG? 

    GridCache<String, Message> cache = GridGain.grid().cache("message");
    Message message = cache.get(messageId);
    if(message != null) {
        message.setReadDate(new Date());
        cache.putxAsync(messageId, message);
    }

I'm hoping to replace it with atomic operation that is executed on the data node

    cache.execute(messageId, new Task() {
        public void execute(V value) {
            value.setReadDate();
            return value;
        }
    });

Upvotes: 0

Views: 54

Answers (1)

Dmitriy
Dmitriy

Reputation: 2292

GridGain has cache.transform(...) and cache.transformAndCompute(...) methods which work exactly like you need.

Please take a look at Delta (a.k.a. Partial) Updates section in documentation.

Upvotes: 1

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