spring-data-mongodb

问题 i am using Mongodb in Spring Web. And use MongoRepository to CRUD I had: Collection: User Later, i had to create a Group. because i shouldn't and can't embedded User into Group. I create new collection as SQL name: GroupUser. In here, i use: @Field("groupId") private String groupId; @DBRef private User user; this will help to query list user in Group (query data and auto get User's content) But as i want to get the list User's Id. Normally, in SQL we can do like: select user.id from GroupUser

问题 I have a collection with documents like below { "_id" : ObjectId("5946360fdab24b1d05fac7e6"), "name" : "aaa", "createdAt" : NumberLong("1497773583563"), "segmentedStatus" : 0 } I want to stat how many documents with segmentedStatus = 1, db.foo.aggregate( {$project: {_id:0, segmentedCount:{$cond: [{$eq:["$segmentedStatus",1]}, 1, 0]} } }, {$group: {_id:null, count:{$sum:"$segmentedCount"}}} ) In spring data mongo Aggregation aggregation = newAggregation(project().and("segmentedCount")

问题 I have following MongoDB aggregation query that works well in MongoDB [ { $match: { "myfield":"X" }, { $group: { _id: { myfield: "$myfield" }, count: { $sum: 1 }, lt5w: { $sum: { $cond:{ if: { $gte: [ "$myDate", new Date(ISODate().getTime() - 1000 * 60 * 60 * 24 * 7 * 5) ] }, then: 1, else: 0 } } }, gt12w: { $sum: { $cond:{ if: { $gte: [ new Date(ISODate().getTime() - 1000 * 60 * 60 * 24 * 7 * 12), "$myDate" ] }, then: 1, else: 0 } } } } } ]) How can I express this complex $sum operation

问题 I'm trying to create a ProjectionOperation in the Java Spring aggregation framework. The following simplified raw mongo db query works fine and should be implemented with java code. I'm struggling with the first row in the $project section of my query. How can I write nested project queries in the aggregation framework? (side note: startTime is a fixed and given unix timestamp) db.procedure_executions.aggregate([ { $match : { "application.$id" : ObjectId("55144929bc26f48fb5de15a7") } }, {

问题 Having a lot of trouble figuring out what I'm doing wrong. Sadly I had it working at one point, but can't determine what I changed that broke it. From what I understand this should be fully supported now. Object in question: @Document public class Place { public final static String URI = "/place"; @Id private String id; private String name; private String caption; private GeoJsonPoint location; public Place() {} public Place(GeoJsonPoint geoJsonPoint) { this.location = geoJsonPoint; } //

问题 I have a document with an array field with "chapters": [ { "id" : "14031871223912313", ...} ... ] I would like to query return the id's with Spring Data's MongoTemplate using the following: class Chapter { private String id; public String getId() { return id; } } This way the id is not populated. I have tried using the different mapping options with @Field described here http://docs.spring.io/spring-data/mongodb/docs/current/reference/html/#mapping.conventions.id-field What am I doing wrong?

问题 I want to execute the below native query in spring data mongodb : db.runCommand({aggregate:"mycollection", pipeline :[{$match : {$and : [{"orderDate" : {$gte : ISODate("2016-07-25T10:33:04.196Z")}}, {"orderDate" : {$lte :ISODate("2018-07-25T10:33:04.196Z") }} ]}}, { "$project" : { "orderType" : 1 ,"count" : 1 , "month" : { "$month" : [ "$orderDate"]}}}, { "$group" : { "_id" : { "month" : "$month" , "orderType" : "$orderType"} , "count" : { "$sum" : 1} }}], cursor:{batchSize:1000}}) I tried

问题 I'm using Spring Integration 4.3.11 with Spring Data MongoDB 1.10.6. I have a message aggregator that uses MongoDbMessageStore . When a message from a message sequence comes in, it's persisted in MongoDB, but immediately after that (in o.s.i.store.AbstractMessageGroupStore#addMessageToGroup ) an exception is thrown when the same message is read from MongoDB that Failed to instantiate [org.springframework.messaging.support.GenericMessage]: No default constructor found Full stacktrace: org

问题 I am using mongotemplate , my collection look like this: { "_id": "theid", "tag": "taga", "somefield": "some value", "fieldC": { "anotherfielad": "more data", "an_array": [ { "a": "abc", "b": 5 }, { "a": "bca", "b": 44 }, { "a": "ddd", "b": 21 } ] } } { "_id": "anotherid", "tag": "taga", "somefield": "some other value", "fieldC": { "anotherfielad": "other more data", "an_array": [ { "a": "ccc", "b": 6 }, { "a": "abc", "b": 99 }, { "a": "ddd", "b": 21 } ] } } I need to get a unique result from

问题 I am trying to use MongoDB with Java and Spring. I am getting the following error when I try load my application: org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 32 in XML document from file [E:\adaptor-JPSS-SA-RE_ssamanta_20150904-025119\bin\..\cfg\spring\beans.xml] is invalid; nes c: The matching wildcard is strict, but no declaration can be found for element 'mongo:mongo'. at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions