- Toh Ee Wei
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- Koalisi Indonesia Maju (2024)
- E.E. Mangindaan
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- Suku Nias
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- Teuku Abdul Hamid Azwar
- Jakarta EE
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- Jakarta EE | Cloud Native Enterprise Java | Java EE | The Eclipse ...
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- Jakarta EE Specifications | Jakarta EE | The Eclipse Foundation
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Jakarta EE, formerly Java Platform, Enterprise Edition (Java EE) and Java 2 Platform, Enterprise Edition (J2EE), is a set of specifications, extending Java SE with specifications for enterprise features such as distributed computing and web services. Jakarta EE applications are run on reference runtimes, which can be microservices or application servers, which handle transactions, security, scalability, concurrency and management of the components they are deploying.
Jakarta EE is defined by its specification. The specification defines APIs (application programming interface) and their interactions. As with other Java Community Process specifications, providers must meet certain conformance requirements in order to declare their products as Jakarta EE compliant.
Examples of contexts in which Jakarta EE referencing runtimes are used are: e-commerce, accounting, banking information systems.
History
The platform was known as Java 2 Platform, Enterprise Edition or J2EE from version 1.2, until the name was changed to Java Platform, Enterprise Edition or Java EE in version 1.5.
Java EE was maintained by Oracle under the Java Community Process. On September 12, 2017, Oracle Corporation announced that it would submit Java EE to the Eclipse Foundation. The Eclipse top-level project has been named Eclipse Enterprise for Java (EE4J). The Eclipse Foundation could not agree with Oracle over the use of javax and Java trademarks. Oracle owns the trademark for the name "Java" and the platform was renamed from Java EE to Jakarta EE. The name refers to the largest city on the island of Java and also the capital of Indonesia, Jakarta. The name should not be confused with the former Jakarta Project which fostered a number of current and former Java projects at the Apache Software Foundation.
Specifications
Jakarta EE includes several specifications that serve different purposes, like generating web pages, reading and writing from a database in a transactional way, managing distributed queues.
The Jakarta EE APIs include several technologies that extend the functionality of the base Java SE APIs, such as Jakarta Enterprise Beans, connectors, servlets, Jakarta Server Pages and several web service technologies.
= Web specifications
=Jakarta Servlet: defines how to manage HTTP requests, in a synchronous or asynchronous way. It is low level and other Jakarta EE specifications rely on it;
Jakarta WebSocket: API specification that defines a set of APIs to service WebSocket connections;
Jakarta Faces: a technology for constructing user interfaces out of components;
Jakarta Expression Language (EL) is a simple language originally designed to satisfy the specific needs of web application developers. It is used specifically in Jakarta Faces to bind components to (backing) beans and in Contexts and Dependency Injection to named beans, but can be used throughout the entire platform.
= Web service specifications
=Jakarta RESTful Web Services provides support in creating web services according to the Representational State Transfer (REST) architectural pattern;
Jakarta JSON Processing is a set of specifications to manage information encoded in JSON format;
Jakarta JSON Binding provides specifications to convert JSON information into or from Java classes;
Jakarta XML Binding allows mapping XML into Java objects;
Jakarta XML Web Services can be used to create SOAP web services.
= Enterprise specifications
=Jakarta Activation (JAF) specifies an architecture to extend component Beans by providing data typing and bindings of such types.
Jakarta Contexts and Dependency Injection (CDI) is a specification to provide a dependency injection container;
Jakarta Enterprise Beans (EJB) specification defines a set of lightweight APIs that an object container (the EJB container) will support in order to provide transactions (using JTA), remote procedure calls (using RMI or RMI-IIOP), concurrency control, dependency injection and access control for business objects. This package contains the Jakarta Enterprise Beans classes and interfaces that define the contracts between the enterprise bean and its clients and between the enterprise bean and the ejb container.
Jakarta Persistence (JPA) are specifications about object-relational mapping between relation database tables and Java classes.
Jakarta Transactions (JTA) contains the interfaces and annotations to interact with the transaction support offered by Jakarta EE. Even though this API abstracts from the really low-level details, the interfaces are also considered somewhat low-level and the average application developer in Jakarta EE is either assumed to be relying on transparent handling of transactions by the higher level EJB abstractions, or using the annotations provided by this API in combination with CDI managed beans.
Jakarta Messaging (JMS) provides a common way for Java programs to create, send, receive and read an enterprise messaging system's messages.
= Other specifications
=Jakarta Validation: This package contains the annotations and interfaces for the declarative validation support offered by the Jakarta Validation API. Jakarta Validation provides a unified way to provide constraints on beans (e.g. Jakarta Persistence model classes) that can be enforced cross-layer. In Jakarta EE, Jakarta Persistence honors bean validation constraints in the persistence layer, while JSF does so in the view layer.
Jakarta Batch provides the means for batch processing in applications to run long running background tasks that possibly involve a large volume of data and which may need to be periodically executed.
Jakarta Connectors is a Java-based tool for connecting application servers and enterprise information systems (EIS) as part of enterprise application integration (EAI). This is a low-level API aimed at vendors that the average application developer typically does not come in contact with.
Web profile
In an attempt to limit the footprint of web containers, both in physical and in conceptual terms, the web profile was created, a subset of the Jakarta EE specifications. The Jakarta EE web profile comprises the following:
Certified referencing runtimes
Although by definition all Jakarta EE implementations provide the same base level of technologies (namely, the Jakarta EE spec and the associated APIs), they can differ considerably with respect to extra features (like connectors, clustering, fault tolerance, high availability, security, etc.), installed size, memory footprint, startup time, etc.
= Jakarta EE
== Java EE
=Code sample
The code sample shown below demonstrates how various technologies in Java EE 7 are used together to build a web form for editing a user.
In Jakarta EE a (web) UI can be built using Jakarta Servlet, Jakarta Server Pages (JSP), or Jakarta Faces (JSF) with Facelets. The example below uses Faces and Facelets. Not explicitly shown is that the input components use the Jakarta EE Bean Validation API under the covers to validate constraints.
= Example Backing Bean class
=To assist the view, Jakarta EE uses a concept called a "Backing Bean". The example below uses Contexts and Dependency Injection (CDI) and Jakarta Enterprise Beans (EJB).
= Example Data Access Object class
=To implement business logic, Jakarta Enterprise Beans (EJB) is the dedicated technology in Jakarta EE. For the actual persistence, JDBC or Jakarta Persistence (JPA) can be used. The example below uses EJB and JPA. Not explicitly shown is that JTA is used under the covers by EJB to control transactional behavior.
= Example Entity class
=For defining entity/model classes Jakarta EE provides the Jakarta Persistence (JPA), and for expressing constraints on those entities it provides the Bean Validation API. The example below uses both these technologies.
See also
Canigó (framework)
Deployment descriptor
Java BluePrints
Java Research License
Sun Community Source License
Sun Java System Portal Server
Web container
J2ME
References
External links
Official website
Jakarta EE Compatible Products: Enterprise Java Application and Web Servers - Eclipse Foundation
The Jakarta EE Tutorial
First Cup of Jakarta EE Tutorial: An Introduction to Jakarta EE
Java Platform, Enterprise Edition (Java EE), Oracle Technology Network
Jakarta EE official YouTube channel
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Jakarta EE | Cloud Native Enterprise Java | Java EE | The Eclipse ...
Working together, the world’s enterprise Java ecosystem leaders, including Fujitsu, IBM, Oracle, Red Hat, and Tomitribe, are advancing Java EE and Jakarta EE to support moving mission-critical applications and workloads to the cloud.
Jakarta EE Releases | Download the Latest Version of Jakarta …
Sep 10, 2019 · All of the Jakarta EE release versions are listed below. Check out the release page and press release for each version to see what’s new, download compatible products, or find the version specifications. Jakarta EE is an open, community-driven platform for future innovation of Java EE technologies.
Overview :: Jakarta EE Tutorial :: Jakarta EE Documentation
This chapter explains what Jakarta EE is, what features it provides, common terms, and how Jakarta EE applications are structured.
Jakarta EE 9 Release | Java EE 9 | Download Compatible …
The Jakarta EE 9 release is here, the future of Java EE. Download compatible products and see what’s new in the specifications.
Learn | Jakarta EE | The Eclipse Foundation
Do you need an overview of Jakarta EE as a whole? In this course, Java Champion and Jakarta EE Developer Advocate Ivar Grimstad guides you through the purpose of Jakarta EE and the specifications that you will need to understand.
Jakarta EE 10 Release | Java EE 10 - Jakarta® EE: The New …
The Jakarta EE 10 release provides new functionality in over 20 component specifications. This release enables builders of modern cloud native Java applications to develop and deploy Jakarta EE 10 applications on Java SE 11 as well as Java SE 17, the most current LTS release of …
Why Jakarta EE for Enterprise Java Application Development
A vast majority of Fortune 500 companies are running their mission-critical applications on Java EE, and now, Jakarta EE - they are choosing an open, vendor-neutral, and community-driven approach to application development technologies.
Specification Guides - Jakarta® EE: The New Home of Cloud …
Our spec guides provide in-depth explanations about how Jakarta EE specifications work. Get code examples and learn more about what you can do with Jakarta EE.
Jakarta EE Specifications | Jakarta EE | The Eclipse Foundation
Browse Jakarta EE Specifications, including Jakarta EE Platform, Profile, and individual specification documents.
Jakarta EE Compatible Products | Enterprise Java Application …
Find Jakarta EE compatible products including enterprise java application servers and platforms to build your cloud native Java application.