This article is part of a blog series that explores the newly redesigned Spring Cloud Stream applications based on Java Functions. In this post, we will look at the Elasticsearch sink that allows us to index records in Elasticsearch, and its corresponding Consumer function.

Here are all the previous parts of this blog series.

• Introducing Function Based Streaming Applications

• Function Composition with Streaming Applications

• How to Build a Supplier and Source Application

• How to Build a Consumer and Sink Application

• Build and Run a Simple Stream Application

• Case Study: HTTP Request Function and Processor

• Case Study: File Source and MongoDB Sink

• Case Study: Relational Database Source and File Sink

• Case Study: Remote File Ingest with Spring Cloud Data Flow

• Case Study: Aggregator Function and Processor

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The Spring Data MongoDB 3.1 release is one of the modules that highly benefited from the recent changes in the Spring Data Commons module, by leveraging the infrastructure built there to bring reactive features like auditing and SpEL. The following snippet gives you an impression of what this means for declarative MongoDB queries using SpEL:

@Query("{ 'supervisor' : ?#{ hasRole('ROLE_ADMIN') " +
  "? new Document('$regex', '*') : principal.name } }")
Flux<Person> findAllFilteredByRole();

@EnableReactiveMongoAuditing uses the common infrastructure so you can keep track of changes easily.

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On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 2.3.6 has been released and is now available from Maven Central.

This release includes 30 bug fixes, documentation improvements, and dependency upgrades. Thanks to all those who have contributed with issue reports and pull requests.

How can you help?

If you're interested in helping out, check out the "ideal for contribution" tag in the issue repository. If you have general questions, please ask on stackoverflow.com using the spring-boot tag or chat with the community on Gitter.

Project Page | GitHub | Issues | Documentation | Stack Overflow | …

On behalf of the Spring Boot team and everyone that has contributed, I am pleased to announce that Spring Boot 2.4.0 has been released and is available from Maven Central. 2.4.0 is the first generally available Spring Boot release that uses the new versioning scheme. Please note that the version is 2.4.0 rather than 2.4.0.RELEASE that you may have expected based on previous releases.

This release adds a significant number of new features and improvements. For full upgrade instructions and new and noteworthy features please see the release notes.

What's new in 2.4

Config File Processing…

Hi Spring fans! Welcome to another installment of a Bootiful Podcast! In this installment Josh Long (@starbuxman) looks at the week that was, talks about the JUST released Spring Boot 2.4, and then talks to industry legend and larger-than-life friend John Davies (@jtdavies)

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's November 10th, 2020, as I write this and I, for one, can not believe that we're closer to 2021 than we are to 2019 at this point. That's insane. Time has absolutely rocketed by in some senses and stood utterly still in others. Odd year, this one.

I hope you're all doing well! I'm at the Reactive Summit today (virtually, of course). This afternoon I was on a wonderful panel with all sorts of folks from around the ecosystem. And soon, around 17:30 or so, if memory serves, I'll be speaking about RSocket and its use in…

On behalf of the team, I'm pleased to announce Spring Data service release 2020.0.1. This service release is built on top of Spring Framework 5.3.1 and Reactor 2020.0.1. It contains mostly dependency upgrades and fixes.

Spring Data 2020.0.1 ships 34 improvements and fixes.

This release will be picked up by the upcoming Spring Boot 2.4.0 release for your convenience.

To round things off, here are the links to the individual modules along with their documentation:

• Spring Data Commons 2.4.1 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data JDBC 2.1.1 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data JPA 2.4.1 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data for Apache Cassandra 3.1.1 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data MongoDB 3.1.1 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data KeyValue 2.4.1 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data Neo4j 6.0.1 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data for Apache Geode 2.4.1 - Artifacts - Javadoc - Documentation - …

As part of the 2020.0.0 version of Spring Data, we released Spring Data JDBC 2.1. This article presents the four most interesting changes in this version.

• Use @Value on entity constructor arguments.
• RowMapper and ResultSetExtractor as beans.
• Improved performance for entities.
• Support of Oracles temporal types.

#Use @Value on Entity Constructor Arguments

In some cases, not all the data that goes into an entity comes from the ResultSet of a query. You now may provide an @Value annotation with a SPeL expression that is evaluated, and the result is passed as an argument upon construction of the…

On behalf of the community, I am pleased to announce that the Service Release 9 (SR9) of the Spring Cloud Hoxton Release Train is available today. The release can be found in Maven Central. You can check out the Hoxton release notes for more information.

Notable Changes in the Hoxton Release Train

See all issues included in this release here.

This was primarily a bug fix and documentation release.

See all of the included issues and pull requests at the GitHub project. Hoxton.SR9 is compatible with Spring Boot 2.3.x and 2.2.x.

Spring Cloud Gateway

• Added support for setting SecureHeaders filter header values per route
• Added support for exposing RouteDefinitions via an actuator endpoint
• Added BooleanOpSpec.not() predicate operator
• Improved reactive LoadBalancer performance
• Added support for disabling filters and predicates by a property
• Added the possibility to customize gateway metrics prefix
• Support case-insensitive MVC headers matching
…