Spring Data for MongoDB is part of the umbrella Spring Data project which aims to provide a familiar and consistent Spring-based programming model for new datastores while retaining store-specific features and capabilities.

Introduction

The Spring Data MongoDB project provides integration with the MongoDB document database. Key functional areas of Spring Data MongoDB are a POJO centric model for interacting with a MongoDB DBCollection and easily writing a Repository style data access layer.

Features

• Spring configuration support using Java based @Configuration classes or an XML namespace for a Mongo driver instance and replica sets.

• MongoTemplate helper class that increases productivity performing common Mongo operations. Includes integrated object mapping between documents and POJOs.

• Exception translation into Spring’s portable Data Access Exception hierarchy

• Feature Rich Object Mapping integrated with Spring’s Conversion Service

• Annotation based mapping metadata but extensible to support other metadata formats

• Persistence and mapping lifecycle events

• Low-level mapping using MongoReader/MongoWriter abstractions

• Java based Query, Criteria, and Update DSLs

• Automatic implementation of Repository interfaces including support for custom query methods.

• QueryDSL integration to support type-safe queries. GeoSpatial integration

• Map-Reduce integration

• JMX administration and monitoring

• CDI support for repositories

• GridFS support