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https://issues.apache.org/jira/browse/STORM-1483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15121625#comment-15121625
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ASF GitHub Bot commented on STORM-1483:
---------------------------------------
Github user vesense commented on a diff in the pull request:
https://github.com/apache/storm/pull/1038#discussion_r51131897
--- Diff:
external/storm-mongodb/src/main/java/org/apache/storm/mongodb/bolt/MongoUpdateBolt.java
---
@@ -0,0 +1,69 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.storm.mongodb.bolt;
+
+import org.apache.commons.lang.Validate;
+import org.apache.storm.mongodb.common.QueryFilterCreator;
+import org.apache.storm.mongodb.common.mapper.MongoMapper;
+import org.apache.storm.topology.OutputFieldsDeclarer;
+import org.apache.storm.tuple.Tuple;
+import org.bson.Document;
+import org.bson.conversions.Bson;
+
+/**
+ * Basic bolt for updating from MongoDB.
+ *
+ * Note: Each MongoUpdateBolt defined in a topology is tied to a specific
collection.
+ *
+ */
+public class MongoUpdateBolt extends AbstractMongoBolt {
--- End diff --
In MongoDB, `upsert` is an option of `UpdateRequest`:
>whether this update will insert a new document if no documents match the
filter. The default is false.
I don't think it's a better way to merge insert&update for inserting
scenario.
> add storm-mongodb connector
> ---------------------------
>
> Key: STORM-1483
> URL: https://issues.apache.org/jira/browse/STORM-1483
> Project: Apache Storm
> Issue Type: Improvement
> Reporter: Xin Wang
> Assignee: Xin Wang
>
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