MutationResult to String and Object

Java SDK
1

Hi,

I’m in-progress of converting SDK 2 code into SDK 3.

How to convert MutationResult into Optional<Map<String,Object>> ?

Cannot resolve method ‘content’ in ‘MutationResult’

 @Override
    public Map<String, Object> upsertDocument(final String identifier, final int expiry, Map<String, Object> data) {
        return Optional.ofNullable(upsertCouchbaseDocument(identifier, expiry, data))
                .map(d -> gson.fromJson(d.content(),Map.class))
                .orElse(Collections.EMPTY_MAP);
    }

private MutationResult upsertCouchbaseDocument(final String identifier, final int expiry, final Map<String, Object> data) {
        try{
            return couchbaseConfiguration.getBucket().defaultCollection().upsert(identifier,data,UpsertOptions.upsertOptions().expiry(Duration.ofSeconds(expiry)));
        } catch (RuntimeException rte) {
            throw new DataAccessException(rte.getMessage(), rte.getCause());
        }

Thanks.

2

Hi Strike, welcome to the forum!

A MutationResult does not have the document content. It just has a cas value and a mutation token.

Do you want your upsertDocument method to return the content of the updated document? If so, is there a reason you can’t just return the data argument?

Thanks,
David

3

Hi David,

I can return the data but how do we find if data has been successfully inserted into Couchbase?

Are there any other solution other than MutationResult?

Thanks.

4

how do we find if data has been successfully inserted into Couchbase?

If upsert (or insert, or replace, etc.) does not throw an exception, then the mutation was successful.