Examples of com.mongodb.WriteResult

com.mongodb.WriteResult
This class lets you access the results of the previous write. if you have STRICT mode on, this just stores the result of that getLastError call if you don't, then this will actually do the getlasterror call. if another operation has been done on this connection in the interim, calls will fail

    public <T extends Document> void remove(Collection<T> collection, String key) {
        log("remove", key);        
        DBCollection dbCollection = getDBCollection(collection);
        long start = start();
        try {
            WriteResult writeResult = dbCollection.remove(getByKeyQuery(key).get(), WriteConcern.SAFE);
            invalidateCache(collection, key);
            if (writeResult.getError() != null) {
                throw new MicroKernelException("Remove failed: " + writeResult.getError());
            }
        } finally {
            end("remove", start);
        }
    }

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        DBCollection dbCollection = getDBCollection(collection);
        long start = start();
        try {
            try {
                WriteResult writeResult = dbCollection.insert(inserts, WriteConcern.SAFE);
                if (writeResult.getError() != null) {
                    return false;
                }
                if (collection == Collection.NODES) {
                    for (T doc : docs) {
                        Lock lock = getAndLock(doc.getId());

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                for (String key : keys) {
                    cachedDocs.put(key, nodesCache.getIfPresent(key));
                }
            }
            try {
                WriteResult writeResult = dbCollection.update(query.get(), update, false, true, WriteConcern.SAFE);
                if (writeResult.getError() != null) {
                    throw new MicroKernelException("Update failed: " + writeResult.getError());
                }
                // update cache
                for (Entry<String, NodeDocument> entry : cachedDocs.entrySet()) {
                    Lock lock = getAndLock(entry.getKey());
                    try {

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            builder.add("base", state.get("base"));
        }
        builder.add("head", head.toString());
        DBObject nextState = builder.get();


        WriteResult result =
                journals.update(state, nextState, false, false, concern);
        if (result.getN() == 1) {
            state = nextState;
            stateLastUpdated = System.nanoTime();
            return true;
        } else {
            // force refresh when next accessed

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    }


    @Override
    public void insertObject(final NoSQLObject<BasicDBObject> object) {
        try {
            final WriteResult result = this.collection.insert(object.unwrap(), this.writeConcern);
            if (result.getN() < 1) {
                LOGGER.error("Failed to write log event to MongoDB due to invalid result [{}].", result.getN());
            }
        } catch (final MongoException e) {
            LOGGER.error("Failed to write log event to MongoDB due to error.", e);
        }
    }

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        long start = start();
        try {
            if (collection == Collection.NODES) {
                nodesCache.invalidate(key);
            }
            WriteResult writeResult = dbCollection.remove(getByKeyQuery(key).get(), WriteConcern.SAFE);
            if (writeResult.getError() != null) {
                throw new MicroKernelException("Remove failed: " + writeResult.getError());
            }
        } finally {
            end("remove", start);
        }
    }

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        DBCollection dbCollection = getDBCollection(collection);
        long start = start();
        try {
            try {
                WriteResult writeResult = dbCollection.insert(inserts, WriteConcern.SAFE);
                if (writeResult.getError() != null) {
                    return false;
                }
                if (collection == Collection.NODES) {
                    for (T doc : docs) {
                        doc.seal();

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        DBObject update = createUpdate(updateOp);
        long start = start();
        try {
            try {


                WriteResult writeResult = dbCollection.updateMulti(query.get(), update);
                if (writeResult.getError() != null) {
                    throw new MicroKernelException("Update failed: " + writeResult.getError());
                }
                if (collection == Collection.NODES) {
                    // update cache
                    for (String key : keys) {
                        @SuppressWarnings("unchecked")

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        }
        String id = StringUtils.convertBytesToHex(blockId.getDigest());
        DBObject query = getBlobQuery(id, minLastModified);
        DBObject update = new BasicDBObject("$set",
                new BasicDBObject(MongoBlob.KEY_LAST_MOD, System.currentTimeMillis()));
        WriteResult writeResult = getBlobCollection().update(query, update);
        if (writeResult.getError() != null) {
            LOG.error("Mark failed for blob %s: %s", id, writeResult.getError());
        }
    }

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    @Override
    public int sweep() throws Exception {
        DBObject query = getBlobQuery(null, minLastModified);
        long countBefore = getBlobCollection().count(query);
        WriteResult writeResult = getBlobCollection().remove(query);
        if (writeResult.getError() != null) {
            LOG.error("Sweep failed: %s", writeResult.getError());
        }


        long countAfter = getBlobCollection().count(query);
        minLastModified = 0;
        return (int) (countBefore - countAfter);

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