Mongodb can actually set the expiration time of data just like Redis1. MongoSession extractPrincipal (MongoSession) - Method in class org.springframework.session.data.mongo. But those does not work with " index" annotation on sub-class. Ttl1.java. 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 . Expire Data from Collections by Setting TTL — MongoDB Manual @TextIndexed specifies a field that will part of the text index. mongodb v.2.4默认禁用文本索引功能。. This annotation marks the field as indexed in MongoDB: @QueryEntity @Document public class User { @Indexed private String name; . MongoDB 2.2 or higher supports TTL (Time-To-Live) indexes. For example, to create a TTL index . createIndexes — MongoDB Manual Spring Data MongoDB how to set index ttl from system property The repository follows the Spring Data-centric approach and comes with more flexible and complex API operations, based on the well-known access patterns in all Spring Data projects. No, it is not possible. Mongodb sets the TTL index to automatically clear data and expired data Indexing in MongoDB - GeeksforGeeks Indexes. TTL Monitor is a separate thread that runs periodically (usually every minute) and scans a collection, that has a TTL index defined, for any expired documents and removes them in the background. Spring Data MongoDB how to set index ttl from system property. Method ensures that there is a TTL index on expireAt field. A document will expire when the number of seconds in the expireAfterSeconds field has passed since the time specified in its indexed . Currently, TTL index can only be established on a single field. You can create a TTL index on any date field or any date array field. 44. Hi @Mithil_Poojary,. 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. There are two ways to implement TTL indexes. Best Practices? 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. Now lets get onto what this post is about, applying indexes to documents using Spring Data. Update TTL Indexed Field expiry date later - MongoDB
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