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

                DBCollection coll = getCollection();


                DBObject query = getTemplateObject(changedRole);
                DBObject update = m_helper.serializeUpdate(changedRole);


                WriteResult result = coll.update(query, update, false /* upsert */, false /* multi */);


                if (result.getLastError() != null) {
                    result.getLastError().throwOnError();
                }
            }
            catch (MongoException e) {
                m_log.log(LogService.LOG_WARNING, "Failed to update changed role: " + changedRole.getName(), e);
            }

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    } else {
      genID = null;
    }
    DBCollection coll = db.getCollection(collection);
    DBObject obj = jsonToDBObject(doc);
    WriteResult res = coll.save(obj);
    if (res.getError() == null) {
      if (genID != null) {
        JsonObject reply = new JsonObject();
        reply.putString("_id", genID);
        sendOK(message, reply);
      } else {
        sendOK(message);
      }
    } else {
      sendError(message, res.getError());
    }
  }

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    if (matcher == null) {
      return;
    }
    DBCollection coll = db.getCollection(collection);
    DBObject obj = jsonToDBObject(matcher);
    WriteResult res = coll.remove(obj);
    int deleted = res.getN();
    JsonObject reply = new JsonObject().putNumber("number", deleted);
    sendOK(message, reply);
  }

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    }


    @Override
    public void insertObject(final NoSQLObject<BasicDBObject> object) {
        try {
            final WriteResult result = this.collection.insert(object.unwrap(), this.writeConcern);
            if (Strings.isNotEmpty(result.getError())) {
                throw new AppenderLoggingException("Failed to write log event to MongoDB due to error: " +
                        result.getError() + '.');
            }
        } catch (final MongoException e) {
            throw new AppenderLoggingException("Failed to write log event to MongoDB due to error: " + e.getMessage(),
                    e);
        }

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    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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    }


    @Override
    public void insertObject(final NoSQLObject<BasicDBObject> object) {
        try {
            final WriteResult result = this.collection.insert(object.unwrap(), this.writeConcern);
            if (result.getError() != null && result.getError().length() > 0) {
                throw new AppenderLoggingException("Failed to write log event to MongoDB due to error: " +
                        result.getError() + ".");
            }
        } catch (final MongoException e) {
            throw new AppenderLoggingException("Failed to write log event to MongoDB due to error: " + e.getMessage(),
                    e);
        }

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  //public void save(T doc)
  public void save(BasicDBObject doc)
      throws DBException
  {
    Object id = doc.get("_id");
    final WriteResult result;// = null;
    if (id == null)
    {
      logger.info("null ID - inserting as new object");
      result = collection.insert(doc);
      logger.info(result.toString());
    }
    else
    {
      logger.info("Non null ID - updating existing object");
      BasicDBObject query = new BasicDBObject();
      query.put("_id", id);
      result = collection.update(query, doc);
      logger.info(result.toString());


    }


//    System.out.println("N: "+result.getN());
    if (result.getError() != null)
    {
      throw new DBException("Failed to insert/update object: "+
          result.getError()+ ", N:" + result.getN());
    }
  }

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  }


  public void insertBatch(List<DBObject> docs)
      throws DBException
  {
    final WriteResult result = collection.insert(docs);


//    System.out.println("N: "+result.getN());
    if (result.getError() != null)
    {
      throw new DBException("Failed to insert/update object: "+
          result.getError()+ ", N:" + result.getN());
    }
  }

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