Spring Data is a high level SpringSource project whose purpose is to unify and ease the access to different kinds of persistence stores, both relational database systems and NoSQL data stores.
Introduction to the Spring Framework:
Generar description
IoC container
Dependency Injection
Beans scope and lifecycle
Autowiring
XML and annotation based configuration
Additional features
Spring Data is a high level SpringSource project whose purpose is to unify and ease the access to different kinds of persistence stores, both relational database systems and NoSQL data stores.
Introduction to the Spring Framework:
Generar description
IoC container
Dependency Injection
Beans scope and lifecycle
Autowiring
XML and annotation based configuration
Additional features
Java and Spring Data JPA: Easy SQL Data Access
Abstract
Presenter: Miya W. Longwe, MBA, MSE, Tech Lead, Staples, Inc, Framingham MA 01702
Accessing data repositories in various applications programming languages typically involves writing of tedious boilerplate lines of code. Some application development frameworks such as Spring have tried to make the experience more succinct by providing abstraction layers such as HibernateTemplate and JdbcTemplate, etc. Despite these APIs, the developers still spend a lot time writing repetitive code than concentrating on implementing business requirements. Developers at Spring, led by Oliver Gierke, introduced Spring Data JPA which “aims to significantly improve the implementation of data access layers by reducing the effort to the amount that's actually needed. As a developer you write your repository interfaces, including custom finder methods, and Spring will provide the implementation automatically”.
Spring Data JPA provides a powerful, out-of-the-box alternative to creating your own DAO framework. You declare custom repository operations on an interface, and the framework generates dynamic implementations (not code generation) automatically, based on conventions around method names. As part of the presentation, we'll also review a demo to look at Spring Java configuration (as opposed to XML configuration), and investigate the @Profile annotation – configuration details which may make life a bit easier in various ways when setting up unit testing of our repository classes, using out-of-the-box alternative to creating DAO framework, how to create custom repositories, pagination and support for custom queries among other features.
Presenter's Bio
Miya W. Longwe is a Senior Software Engineer and Tech Lead at Staples, Inc. where he is currently working on an initiative to re-platform the company’s ecommerce architecture to offer platform-driven, modular products that can be quickly customized, enhanced, and branded as needed.
Miya has been a software professional since 1997. His 16 years software development career includes working for large companies to small startups, building solutions for enterprises and consumers, working with a broad range of technologies.
Miya Longwe is a hands-on java developer. He believes that in order to be a relevant and effective software developer one needs to remain a deeply knowledgeable, up-to-date, and productive software developer. His research interests include model-driven engineering, domain specific languages, test driven development and project risk management.
Miya graduated from the University of Malawi (Lilongwe, Malawi) and has an MBA from the University of Wales Cardiff Business School (Wales, UK) and a Masters in Software Engineering from Brandeis University (MA, USA).
Occasionally, Miya can be spotted fishing the banks of the south shore (MA) with his two boys, William and Daniel.
In Java 8, the java.util.function has numerous built-in interfaces. Other packages in the Java library (notably java.util.stream package) make use of the interfaces defined in this package. Java 8 developers should be familiar with using key interfaces provided in this package. This presentation provides an overview of four key functional interfaces (Consumer, Supplier, Function, and Predicate) provided in this package.
This is a basic tutorial on Spring core.
Best viewed when animations and transitions are supported, e.g., view in MS Powerpoint. So, please try to view it with animation else the main purpose of this presentation will be defeated.
Introduction to JPA and Hibernate including examplesecosio GmbH
In this talk, held as part of the Web Engineering lecture series at Vienna University of Technology, we introduce the main concepts of Java Persistence API (JPA) and Hibernate.
The first part of the presentation introduces the main principles of JDBC and outlines the major drawbacks of JDBC-based implementations. We then further outline the fundamental principles behind the concept of object relation mapping (ORM) and finally introduce JPA and Hibernate.
The lecture is accompanied by practical examples, which are available on GitHub.
This talk introduces Spring's REST stack - Spring MVC, Spring HATEOAS, Spring Data REST, Spring Security OAuth and Spring Social - while refining an API to move higher up the Richardson maturity model
Welcome to presentation on Spring boot which is really great and relatively a new project from Spring.io. Its aim is to simplify creating new spring framework based projects and unify their configurations by applying some conventions. This convention over configuration is already successfully applied in so called modern web based frameworks like Grails, Django, Play framework, Rails etc.
Presentation explain about
Spring Boot vs Spring vs Spring MVC,
Advantages,
Where to start and how does Spring boot work ?,
Dependency Management,
Logging,
Exception Handling,
Database Handling.
in Spring boot.
Java 8 is coming soon. In this presentation I have outlined the major Java 8 features. You get information about interface improvements, functional interfaces, method references, lambdas, java.util.function, java.util.stream
With Parancoe (www.parancoe.org) You can define and use your DAOs without implementing them. This speeds up the development of your application and the satisfaction of the developers. This presentation was held at the JavaDay in Torino, the October 20, 2007.
Java and Spring Data JPA: Easy SQL Data Access
Abstract
Presenter: Miya W. Longwe, MBA, MSE, Tech Lead, Staples, Inc, Framingham MA 01702
Accessing data repositories in various applications programming languages typically involves writing of tedious boilerplate lines of code. Some application development frameworks such as Spring have tried to make the experience more succinct by providing abstraction layers such as HibernateTemplate and JdbcTemplate, etc. Despite these APIs, the developers still spend a lot time writing repetitive code than concentrating on implementing business requirements. Developers at Spring, led by Oliver Gierke, introduced Spring Data JPA which “aims to significantly improve the implementation of data access layers by reducing the effort to the amount that's actually needed. As a developer you write your repository interfaces, including custom finder methods, and Spring will provide the implementation automatically”.
Spring Data JPA provides a powerful, out-of-the-box alternative to creating your own DAO framework. You declare custom repository operations on an interface, and the framework generates dynamic implementations (not code generation) automatically, based on conventions around method names. As part of the presentation, we'll also review a demo to look at Spring Java configuration (as opposed to XML configuration), and investigate the @Profile annotation – configuration details which may make life a bit easier in various ways when setting up unit testing of our repository classes, using out-of-the-box alternative to creating DAO framework, how to create custom repositories, pagination and support for custom queries among other features.
Presenter's Bio
Miya W. Longwe is a Senior Software Engineer and Tech Lead at Staples, Inc. where he is currently working on an initiative to re-platform the company’s ecommerce architecture to offer platform-driven, modular products that can be quickly customized, enhanced, and branded as needed.
Miya has been a software professional since 1997. His 16 years software development career includes working for large companies to small startups, building solutions for enterprises and consumers, working with a broad range of technologies.
Miya Longwe is a hands-on java developer. He believes that in order to be a relevant and effective software developer one needs to remain a deeply knowledgeable, up-to-date, and productive software developer. His research interests include model-driven engineering, domain specific languages, test driven development and project risk management.
Miya graduated from the University of Malawi (Lilongwe, Malawi) and has an MBA from the University of Wales Cardiff Business School (Wales, UK) and a Masters in Software Engineering from Brandeis University (MA, USA).
Occasionally, Miya can be spotted fishing the banks of the south shore (MA) with his two boys, William and Daniel.
In Java 8, the java.util.function has numerous built-in interfaces. Other packages in the Java library (notably java.util.stream package) make use of the interfaces defined in this package. Java 8 developers should be familiar with using key interfaces provided in this package. This presentation provides an overview of four key functional interfaces (Consumer, Supplier, Function, and Predicate) provided in this package.
This is a basic tutorial on Spring core.
Best viewed when animations and transitions are supported, e.g., view in MS Powerpoint. So, please try to view it with animation else the main purpose of this presentation will be defeated.
Introduction to JPA and Hibernate including examplesecosio GmbH
In this talk, held as part of the Web Engineering lecture series at Vienna University of Technology, we introduce the main concepts of Java Persistence API (JPA) and Hibernate.
The first part of the presentation introduces the main principles of JDBC and outlines the major drawbacks of JDBC-based implementations. We then further outline the fundamental principles behind the concept of object relation mapping (ORM) and finally introduce JPA and Hibernate.
The lecture is accompanied by practical examples, which are available on GitHub.
This talk introduces Spring's REST stack - Spring MVC, Spring HATEOAS, Spring Data REST, Spring Security OAuth and Spring Social - while refining an API to move higher up the Richardson maturity model
Welcome to presentation on Spring boot which is really great and relatively a new project from Spring.io. Its aim is to simplify creating new spring framework based projects and unify their configurations by applying some conventions. This convention over configuration is already successfully applied in so called modern web based frameworks like Grails, Django, Play framework, Rails etc.
Presentation explain about
Spring Boot vs Spring vs Spring MVC,
Advantages,
Where to start and how does Spring boot work ?,
Dependency Management,
Logging,
Exception Handling,
Database Handling.
in Spring boot.
Java 8 is coming soon. In this presentation I have outlined the major Java 8 features. You get information about interface improvements, functional interfaces, method references, lambdas, java.util.function, java.util.stream
With Parancoe (www.parancoe.org) You can define and use your DAOs without implementing them. This speeds up the development of your application and the satisfaction of the developers. This presentation was held at the JavaDay in Torino, the October 20, 2007.
Developing and maintaining a Java GraphQL back-end: The less obvious - Bojan ...Codemotion
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Liferay Mobile SDK has been enabling developers to create native apps backed by Liferay Portal’s power. We’ve been using it in production since 2013 and have noticed many improvement points. We also listened to the community and added new features that will make app development even faster. The new Liferay Mobile SDK for Android brings a lot of new features that boosts apps development. Things from automatic JSON parsing and RxJava compatibility to better code generation are ones of the improvements in this new major release.
Nachdem sich Apache Spark 2015 als ernsthafte Alternative unter den Big Data Frameworks etablieren konnte und Hadoop MapReduce den Rang abläuft, kommt nun aus Berlin unerwartet Konkurrenz in Form von Apache Flink.
Video zu den Slides:
https://www.youtube.com/watch?v=-MmX44pjJ9s&list=PL6ceXNIVUaAKIxQO_aBLlWpp48x-cRzOE&index=2
Zur Spark & Hadoop User Group:
http://www.meetup.com/Hadoop-User-Group-Munich/
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5. JPA Basics
@Entity
public class Person {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
Long id;
@Version
Long version;
String firstName;
@OneToOne(cascade = CascadeType.ALL, orphanRemoval = true)
Address address;
@ManyToMany(cascade = CascadeType.ALL)
Set<Hobby> hobbies = new HashSet<>();
Gender gender;
}
6. JPA Basics
Person p = createPerson();
em.persist(p);
// select count(*) from Person
Person reloaded = em.find(Person.class, p.getId());
// select count(*) from Person
Person reloadedAgain = em
.createQuery("SELECT p FROM Person p " +
"WHERE p.id = :id", Person.class)
.setParameter("id", p.getId())
.getSingleResult();
// select count(*) from Person
7. JPA Basics
@Transactional
public class PersonService {
@Autowired
EntityManager em;
public void setName(Long id, String name) {
em.find(Person.class, id).setFirstName(name);
}
public Person loadPerson(Long id) {
return em.find(Person.class, id);
}
}
8. JPA Basics
Person person = personService.loadPerson(id);
person.getAddress();
person.getHobbies().forEach(System.out::println);
28. Query by Example
Person pattern = new Person(
null,
new Address(null, null, "germany"),
Gender.MALE,
null
);
Example<Person> strict = Example.of(pattern);
persons.findAll(strict);
29. Query by Example
Example<Person> lenient = Example.of(
pattern,
ExampleMatcher.matchingAll().withIgnoreCase()
);
persons.findAll(lenient);
38. References
! Github: https://github.com/spring-projects/spring-data-jpa
! Reference: https://docs.spring.io/spring-data/data-jpa/docs/current/reference/html/
! Official examples: https://github.com/spring-projects/spring-data-examples/tree/
master/jpa
! Examples for these slides: https://github.com/schauder/talk-spring-data-jpa-0-100/
tree/master/example
! Article about specifications and Querydsl with Spring Data JPA: https://spring.io/blog/
2011/04/26/advanced-spring-data-jpa-specifications-and-querydsl/
39. Jens Schauder
! Spring Data JPA
! Spring Data JDBC
! jschauder@pivotal.io
! Father
! Plays (Roleplaying) Games
! Fitness & Sports
! @jensschauder
! blog.schauderhaft.de