spring-data-mongodb

How to use spring data mongo @CompoundIndex with sub collections?

由 拥有回忆 提交于 2019-11-30 07:23:55
Assume that I have such entities like the following: @Document(collection = "doc_a") public class A { @Field("id") private Integer id; @Field("b") private Collection<B> b; ... } public class B { @Field("id") private Integer id; ... } is it possible to use a compoundIndex with respect to A.id AND B.id together? I mean maybe like: @CompoundIndex(name = "aid_bid_idx", def = "{'id', 'b.id'}") Thanks in advance. I've tried this kind of compound index in my app, that use spring data too, and worked properly. You only have to correct the index definition in @CompoundIndex annotation: @CompoundIndex

How to aggregate in spring data mongo db a nested object and avoid a PropertyReferenceException?

由 爷，独闯天下 提交于 2019-11-30 06:09:22
问题 I am creating a new endpoint in springboot that will return simple stats on users generated from an aggregate query in a mongo database. However I get a PropertyReferenceException . I have read multiple stackoverflow questions about it, but didn't find one that solved this problem. We have a mongo data scheme like this: { "_id" : ObjectId("5d795993288c3831c8dffe60"), "user" : "000001", "name" : "test", "attributes" : { "brand" : "Chrome", "language" : "English" } } The database is filled with

Spring Data Mongodb - repository for collection with different types

由 ♀尐吖头ヾ 提交于 2019-11-30 04:50:53
问题 I have a mongo collection that may contain three types of entities that I map to java types: Node LeafType1 LeafType2 Collection is ment to store tree-like structure using dbRefs of child nodes in parent entry. I didn't find any information about subject in Spring reference documentation so I'm asking here: Is there a way to use Repository mechanism to work with collection that may contain different types of objects? Declaring several repositories for different types in one collection seems

How to configure spring-data-mongodb to use a replica set via properties

由 和自甴很熟 提交于 2019-11-30 04:50:32
I am currently writing an application which should use a replica set of MongoDB. It is a Spring Boot based application and the following properties work perfectly fine to connect to one server: spring.data.mongodb.host=localhost spring.data.mongodb.port=27017 spring.data.mongodb.database=demo This is absolutely fine for my local dev environment. But later on it should run against a MongoDB replica set, so I have to provide at least 2, better 3 replica set seeds, but how can I do this with properties? I had a look on this page: http://docs.spring.io/spring-boot/docs/current/reference/html

How apply pagination in reactive Spring Data?

由 旧时模样 提交于 2019-11-30 03:16:34
问题 In Spring Data, we have PagingAndSortingRepository which inherits from CrudRepository . In reactive Spring Data, we only have ReactiveSortingRepository which inherits from ReactiveCrudRepository . How could we make pagination in a reactive way ? Will we able to make this in future with ReactivePagingAndSortingRepository for instance? 回答1: Reactive Spring Data MongoDB repositories do not provide paging in the sense of paging how it's designed for imperative repositories. Imperative paging

Spring Data Mongodb Repositories don't implement inheritance correctly

由 大城市里の小女人 提交于 2019-11-30 02:56:10
问题 Having two types of entities, that are mapped to two Java classes in the single MongoDB collection: @Document public class Superclass { ... } @Document(collection = "superclass") public class Subclass extends Superclass { ... } and two repositories for those entities: public interface SuperclassRepository extends MongoRepository<Superclass, String> {} public interface SubclassRepository extends MongoRepository<Subclass, String> {} MongoRepositories don't handle the inheritance of the entities

Spring data mongodb auditing not working.. (Java config)

由 你说的曾经没有我的故事 提交于 2019-11-30 02:37:32
问题 i'm currently using Spring data mongodb 1.6.0-RELEASE and i know it has auditing feature. I put @EnableMongoAuditing annotation on top of my configuration class. And my bean is below: @Document public class MyBean{ @Id private AnotherCustomBean anotherCustomBean = new AnotherCustomBean(); @CreatedDate private Date creationDate; @LastModifiedDate private Date lastModifiedDate; . . . When i save this bean with mongoTemplate.save(myBean); it's not setting created date and last modified date..

How to disable spring-data-mongodb autoconfiguration in spring-boot

由 若如初见. 提交于 2019-11-30 00:05:38
Has anyone tried disabling autoconfiguration for mongodb in spring-boot? I am trying out spring-boot with spring-data-mongodb; Using java based configuration; Using spring-boot 1.2.1.RELEASE, I import spring-boot-starter-web and its' parent pom for dependency management. I also import spring-data-mongodb (tried spring-boot-starter-mongodb as well). I need to connect to two different MongoDB servers. So I need to configure two sets of instances for mongo connection, MongoTemplate etc. I also want to disable auto-configuration. Since I am connecting to multiple servers, I don't need to have a

Spring Data mongo - issue with Distinct collection

由 試著忘記壹切 提交于 2019-11-30 00:03:10
问题 Spring Data Mongo distinct doesn't works. I've following two documents. /* 1 */ { "_id" : ObjectId("5ca746fd92bc0733a4a6633b"), "firstName" : "John", "lastName" : "Kerr", "emailId" : "john.kerr@gmail.com", "hobbies" : [ { "interest" : "Indoor", "sports" : "Chess" }, { "interest" : "Loveoor", "sports" : "Table Tennis" } ], "_class" : "com.example.Person" } /* 2 */ { "_id" : ObjectId("5ca746fd92bc0733a4a6633c"), "firstName" : "Neha", "lastName" : "Parate", "emailId" : "john.kerr@gmail.com",

Does Spring Data MongoDb support $filter array aggregations operator?

由 夙愿已清 提交于 2019-11-29 18:03:35
I'm trying to implement in Spring Data using MongoTemplate the following working mongoDb query: db.answers.aggregate([ { "$match" : { "object_id" : "1" } }, { "$project": { 'answer_list': 1, 'profile': { $filter : { input: '$answer_list', as: 'answer', cond: { $eq: [ '$$answer.question', 2 ] } } } } }, { "$unwind" : "$profile"}, { "$unwind" : "$answer_list"}, { "$group" : { "_id" : { "question" : "$answer_list.question", "answer" : "$answer_list.answer", "criteria" : "$profile.answer"}, "count" : { "$sum" : 1 } } }, { "$sort" : { "_id.question" : 1, "_id.answer" : 1 } } ]); The collection has
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