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  2. Entity Bean - Wikipedia

    en.wikipedia.org/wiki/Entity_Bean

    An entity bean can manage its own persistence (Bean managed persistence) or can delegate this function to its EJB Container (Container managed persistence). An entity bean is identified by a primary key. If the container in which an entity bean is hosted crashes, the entity bean, its primary key, and any remote references survive the crash.

  3. Jakarta Enterprise Beans - Wikipedia

    en.wikipedia.org/wiki/Jakarta_Enterprise_Beans

    Starting with EJB 3.1, the EJB specification defines two variants of the EJB container; a full version and a limited version. The limited version adheres to a proper subset of the specification called EJB 3.1 Lite [36] [37] and is part of Java EE 6's web profile (which is itself a subset of the full Java EE 6 specification).

  4. Apache OpenEJB - Wikipedia

    en.wikipedia.org/wiki/Apache_OpenEJB

    OpenEJB is an open-source, embeddable and lightweight Enterprise JavaBeans Container System and EJB Server, released under the Apache License 2.0. OpenEJB has been integrated with Java EE application servers such as Geronimo [ 1 ] and WebObjects .

  5. EJB QL - Wikipedia

    en.wikipedia.org/wiki/EJB_QL

    EJB QL is a database query language similar to SQL. The used queries are somewhat different from relational SQL, as it uses a so-called "abstract schema" of the enterprise beans instead of the relational model. In other words, EJB QL queries do not use tables and their components, but enterprise beans, their persistent state, and their ...

  6. Spring Framework - Wikipedia

    en.wikipedia.org/wiki/Spring_Framework

    The Spring Framework is an application framework and inversion of control container for the Java platform. [2] The framework's core features can be used by any Java application, but there are extensions for building web applications on top of the Java EE (Enterprise Edition) platform.

  7. Resource acquisition is initialization - Wikipedia

    en.wikipedia.org/wiki/Resource_acquisition_is...

    Resource acquisition is initialization (RAII) [1] is a programming idiom [2] used in several object-oriented, statically typed programming languages to describe a particular language behavior. In RAII, holding a resource is a class invariant , and is tied to object lifetime .

  8. Jakarta EE - Wikipedia

    en.wikipedia.org/wiki/Jakarta_EE

    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 ...

  9. Jakarta Persistence - Wikipedia

    en.wikipedia.org/wiki/Jakarta_Persistence

    The JPA was renamed as Jakarta Persistence in 2019 and version 3.0 was released in 2020. This included the renaming of packages and properties from javax.persistence to jakarta.persistence. Vendors supporting Jakarta Persistence 3.0: DataNucleus (from version 6.0) EclipseLink (from version 3.0) Hibernate (from version 5.5) OpenJPA (from version ...