mongodb-java

I want to create the following document schema in mongoDB using the java driver { "_id": { "$oid": "513e9820c5d0d8b93228d7e8" }, "suitename": "testsuite_name", "testname": "testcase_name", "milestones": [ { "milestone_id": "359", "testplans": [ { "pland_id": "965", "runs": [ 6985, 5896 ] }, { "plan_id": "984", "runs": [ 9856, 3684 ] } ] } ] } I have the following code BasicDBObject testObject = new BasicDBObject(); BasicDBObject milestoneObject = new BasicDBObject(); testObject.put("suitename", testsuite); testObject.put("testname", testcase); testObject.put("milestones", new BasicDBObject(

I'm saving an object with a java.util.Date field into a MongoDB 3.2 instance. ObjectMapper mapper = new ObjectMapper(); String json = mapper.writeValueAsString(myObject); collection.insertOne(Document.parse(json)); the String contains: "captured": 1454549266735 then I read it from the MongoDB instance: final Document document = collection.find(eq("key", value)).first(); final String json = document.toJson(); ObjectMapper mapper = new ObjectMapper(); mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false); xx = mapper.readValue(json, MyClass.class); the deserialization fails:

I am newbie to mongodb. I need to insert a doc without the _id field generating automatically. I need to set the field Tenant_id as unique or need to change the "_id" field to Tenant_id. how to do it? something like this Tenant {Tenant_id: 123, Tenant_info: ...} By default, all regular collections automatically insert an _id field if it is absent. However, this behavior can be changed when you create the collection, by setting explicitely the autoIndexId parameter to false. > db.createCollection("noautoid", { autoIndexId: false }) { "ok" : 1 } Then you can insert documents without _id field.

I get this error on a find call (default Java Driver) after a period of inactivity. I tried to add a manual heartbeat (writing to a capped collection), but it didn't help. I only get the issue while being connected to an instance on compose (i.e. not in a local context). MongoDB version is 3.2.8, latest driver (3.3), using Java 8. Any idea ? I agree with Rhangaun's answer here is my soluction in code of JAVA: public static DB getMongoDB() { MongoClientOptions.Builder builder = new MongoClientOptions.Builder(); //build the connection options builder.maxConnectionIdleTime(60000);//set the max

I am newbie to mongodb. May I know how to avoid duplicate entries. In relational tables, we use primary key to avoid it. May I know how to specify it in Mongodb using java? Use an index with the {unique:true} option. // everyone's username must be unique: db.users.createIndex({email:1},{unique:true}); You can also do this across multiple fields. See this section in the docs for more details and examples. MongoDB indexes may optionally impose a unique key constraint , which guarantees that no documents are inserted whose values for the indexed keys match those of an existing document. If you

I am trying to find documents in MongoDB by searching on "_id" key. My document looks like this- { "_id" : ObjectId("4f693d40e4b04cde19f17205"), "hostname" : "hostnameGoesHere", "OSType" : "OSTypeGoesHere" } I am trying to search this document as- ObjectId id= new ObjectId("4f693d40e4b04cde19f17205"); BasicDBObject obj = new BasicDBObject(); obj.append("_id", id); BasicDBObject query = new BasicDBObject(); query.putAll(query); But I get below error- error: reference to putAll is ambiguous, both method putAll(Map) in BasicBSONObject and method putAll(BSONObject) in BasicBSONObject match query

I have the following structure in my document: { _id : ObjectId("43jh4j343j4j"), array : [ { _arrayId : ObjectId("dsd87dsa9d87s9d7"), someField : "something", someField2 : "something2" }, { _arrayId : ObjectId("sds9a0d9da0d9sa0"), someField : "somethingElse", someField2 : "somethingElse2" } ] } I want to update someField and someField2 but only for one of the items in the array, the one that matches _arrayId (e.g. _arrayId : ObjectId("dsd87dsa9d87s9d7") ; and only for this document (e.g. _id : ObjectId("43jh4j343j4j") ) and no other. The arrayIds are not unique to the document that's why I