If the indexed field in a document . There are two ways to implement TTL indexes. Only with @Indexed Spring Data MongoDB api. The base class is taken from "getting started mongo db example from STS". Ask Question Asked 2 years, 4 months ago. How to Erase Expired Docs Automatically with MongoDB (TTL index) TTL index. 44. org.springframework.data.mongodb.core.index.Index.on java code examples ... This is done through the use of the the various index annotations that Spring Data provides for use with MongoDB, which include: @Indexed specifies a field that will be indexed by MongoDB. Better purge data first, then create index on smaller collection, or create TTL index when creating the collection. Viewed 1k times 0 Preferably, using . In that below case for nested object spring data mongodb creating multiple TTL index for Class(ClassA). @Indexed. Working with MongoDB TTL Indexes from Java 下面简要说一部分spring-boot项目中application.properties内的一些常用配置，更多参照官方文档。 这些参数配置不一定要写在application.properties里面，可以在application.properties里面配置指定自定义配置文件名称和位置：（但是无论怎么配置，spring-boot都会读取加载application . 2.2. Ask Question Asked 2 years, 4 months ago. Spring Data MongoDB how to set index ttl from system property Modified 2 years, 4 months ago. createIndexes — MongoDB Manual What'S New In Spring Data Mongodb 2.1; What'S New In Spring Data Mongodb 2.0; What'S New In Spring Data Mongodb 1.10; What'S New In Spring Data Mongodb 1.9; What'S New In Spring Data Mongodb 1.8; What'S New In Spring Data Mongodb 1.7; Dependencies. For example, to create a TTL index . Spring Data MongoDB - Indexes, Annotations and Converters No, it is not possible. Currently, TTL index can only be established on a single field. MongoDB Repositories :: Spring Docs So finally multiple TTL index there in mongodb. This is done through the use of the various index annotations that Spring Data provides for use with MongoDB, which include: @Indexed specifies a field that will be indexed by MongoDB.. In previous versions or MongoDB versions with featureCompatibilityVersion (fCV) set to "4.0", index names must fall within the limit. As documentation says, one of the restrictions is: TTL indexes are a single-field indexes. 文本索引. How to disable spring-data-mongodb autoconfiguration in spring-boot. Now lets get onto what this post is about, applying indexes to documents using Spring Data. This is ideal for certain types of information like machine generated event data, logs, and session information that only need to persist in a database for a finite amount of time. When this property is used the index can be referred to as a TTL . ensureIndex ( new Index ().on ( "name", Direction.ASC)); 就是这俩造成了MongoDB和MySql的差别。. What will happen when there is multiple TTL index for different field for the same collection. Introduction to Spring Data MongoDB | Baeldung Working with MongoDB TTL Indexes from Java Indexes are special data structures that stores some information related to the documents such that it becomes easy for MongoDB to find the right data file.