I’m pleased to announce the release of Spring LDAP 2.0.4.RELEASE. The highlights of this release include:
LDAP-333 - Support for Spring Data Commons 1.11 (Spring Data Gosling) LDAP-334 - Compatibility with Spring IO Platform 2.0 LDAP-335 - Fix NoClassDefFoundError: RepositoryConfigurationExtension
For additional information on the release, refer to the changelog.
| To see updates to this code, visit our React.js and Spring Data REST tutorial. |
Welcome Spring community,
This is the first of several blog entries. In this session, you will see how to get a bare-bones Spring Data REST application up and running quickly. Then you will build a simple UI on top of it using Facebook’s React.js toolset.
Feel free to grab the code from this repository and follow along.
If you want to do it yourself, visit http://start.spring.io and pick these items:
This demo uses Java 8, Maven Project, and the latest stable release of Spring Boot. This will give you a clean, empty project. From there, you can add the various files shown explicitly in this session, and/or borrow from the repository listed above.
In the beginning there was data. And it was good. But then people wanted to access the data through various means. Over the years, people cobbled together lots of MVC controllers, many using Spring’s powerful REST support. But doing over and over cost a lot of time.
Spring Data REST addresses how simple this problem can be if some assumptions are made:
The cornerstone of any Spring Data REST-based application are the domain objects. For this session, you will build an application to track the employees for a company. Kick that off by creating a data type like this:
@Data
@Entity
public class Employee {
private @Id @GeneratedValue Long id;
private String firstName;
private String lastName;
private String description;
private Employee() {}
public Employee(String firstName, String lastName, String description) {
this.firstName = firstName;
this.lastName = lastName;
this.description = description;
}
}
@Entity is a JPA annotation that denotes the whole class for storage in a relational table.
@Id and @GeneratedValue are JPA annotation to note the primary key and that is generated automatically when needed.
@Data and @RequiredArgsConstructor are Project Lombok annotations to autogenerate getters, setters, constructors, toString, hash, equals, and other things. It cuts down on the boilerplate.
This entity is used to track employee information. In this case, their name and job description.
|
Note
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Spring Data REST isn’t confined to JPA. It supports many NoSQL data stores, but you won’t be covering those here. |
Another key piece of a Spring Data REST application is to create a corresponding repository definition.
public interface EmployeeRepository extends CrudRepository<Employee, Long> {
}
CrudRepository and plugs in the type of the domain object and its primary key
That is all that is needed! In fact, you don’t even have to annotate this invisible if its top-level and visible. If you use your IDE and open up CrudRepository, you’ll find a fist full of pre-built methods already defined.
|
Note
|
You can define your own repository if you wish. Spring Data REST supports that as well. |
To work this this application, you need to pre-load it with some data like this:
@Component
public class DatabaseLoader implements CommandLineRunner {
private final EmployeeRepository repository;
@Autowired
public DatabaseLoader(EmployeeRepository repository) {
this.repository = repository;
}
@Override
public void run(String... strings) throws Exception {
this.repository.save(new Employee("Frodo", "Baggins…
We’re pleased to announce a first release candicate of Spring Statemachine 1.0.0.RC1.
Focus of this release is to get core framework more stable and finally add jepsen tests for a distributed state machine. We also added a first version of a testing support. Resolved github tickets can be found from RC1 issues. We're relatively close to issue a release version, meaning if nothing major pop-up, next release will be a 1.0.0.RELEASE. If something urgent turns up we will do 1.0.0.RC2 prior to a release.
Now that we're here, let's crack it and see what new features we have in this release.
Beyond…
On behalf of the Spring Data team I'd like to announce the general availability of the Spring Data release train Gosling. Over the last 6 months we've fixed 344 tickets in total, 56 of that after the latest release candidate.
@Query methods in MongoDB (see this example).Predicates from web requests (see the reference documentation).Map-backed repositories using SpEL as query language.Welcome to another installment of This Week in Spring! The Spring team is hard at work on all the latest and greatest ahead of the SpringOne2GX event in Washington DC! Time is really flying! I can't beleive what we're staring down September already! This week I'm in Tokyo, Japan, participating in the Spring User Group's huge Spring in Summer event where I gave a keynote and two talks, on Spring Boot and Spring Cloud. The one day event attracted some of the company's largest websites and was a lot of fun!
Anyway, without further ado, let's get to it!
yeoman code-generator for Angular.js frontends and Spring Boot backends)It is my pleasure to announce that Spring Framework 4.2.1 is available from repo.spring.io and Maven Central. This first maintenance release in the 4.2 line contains a wide range of fixes for regressions and other issues reported against 4.2 GA.
4.2.1 also contains minor enhancements: refinement of our Jackson support (see Sébastien's updated blog post), meta-annotation processing improvements (@AliasFor), third-party dependencies alignment (including Hibernate 5.0 GA).
We strongly recommend an immediate upgrade to 4.2.1 for all 4.x users. The Spring Framework team is now working towards…
A minor maintenance release of Spring Web Flow is now available for use. The release addresses compatibility issues against Spring Security 4.0 and the Mojarra and Apache MyFaces JSF implementations. For a list of the addressed issues see the release notes JIRA report.
Welcome to another installment of This Week in Spring! This week I'm in Rio de Janeiro, Brazil for the lovely QCon Rio conference, and then I'm off to Tokyo, Japan for a Spring in Summer conference for local Spring users!
The team is abuzz with excitement leading up to this year's SpringOne2GX 2016, the biggest and best SpringOne2GX, ever! This year, you're going to see us do WAY more with WAY less and get it to production, to boot! This is exciting for everyone of us and it will be for audience members, as well!
.jsp-based applications to Angular.jsWe are pleased to announce the Spring for Apache Hadoop 2.3 M2 milestone release.
The most important enhancements in this release:
See the release changelog for details.
The new support for running a Spark job on YARN via a Spring Batch tasklet opens possibilities for integrating Spark tasks in a larger Spring Batch flow We will show a simple example of this at the upcoming SpringOne 2GX conference during our "Hadoop Workflows and Distributed YARN Apps using Spring technologies"…
This post is a guest post by Han Lim and Tony Nguyen. Han and Tony have done a great presentation at our Singapore Spring User Group on Spring + Angular JS. This blog is based on their presentation.
In this article, we try to describe our experiences moving from server-side rendering view technologies like JSP, Struts and Velocity to client-side rendering view technologies using AngularJS, a popular Javascript framework for modern browsers. We will talk about some of the things to look out for when you are making this change and potential pitfalls you may encounter. If…
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