https://github.com/microbean/microbean-jpa-cdi

A CDI portable extension bringing JPA to CDI 2.0-based Java SE programs.
https://github.com/microbean/microbean-jpa-cdi

cdi cdi-extension cdi2 cdi20 java jpa portable-extension

Last synced: 7 months ago
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A CDI portable extension bringing JPA to CDI 2.0-based Java SE programs.

• Host: GitHub
• URL: https://github.com/microbean/microbean-jpa-cdi
• Owner: microbean
• License: apache-2.0
• Created: 2018-12-12T20:20:34.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2019-03-06T23:44:38.000Z (about 7 years ago)
• Last Synced: 2025-07-04T00:02:16.952Z (10 months ago)
• Topics: cdi, cdi-extension, cdi2, cdi20, java, jpa, portable-extension
• Language: Java
• Homepage: https://microbean.github.io/microbean-jpa-cdi
• Size: 1.52 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# microBean JPA CDI Extension

[![Build Status](https://travis-ci.org/microbean/microbean-jpa-cdi.svg?branch=master)](https://travis-ci.org/microbean/microbean-jpa-cdi)

[![Maven Central](https://maven-badges.herokuapp.com/maven-central/org.microbean/microbean-jpa-cdi/badge.svg)](https://maven-badges.herokuapp.com/maven-central/org.microbean/microbean-jpa-cdi)

The microBean JPA CDI Extension brings JPA to CDI.

If you are programming in an environment that already has JPA, such as

a Java EE application server, then this extension is not for you.

If you are writing a Java SE program using CDI, then this extension

may very well be for you.

In terms of end-user-observable effects, this extension allows you to

do the following:

```

public class MyCDIBean {

  @PersistenceContext(unitName = "dev")

  private EntityManager em;

}

```

That is, you can inject an `EntityManager` as though your CDI-based

standalone Java SE program were in fact a Java EE application server

(at least with respect to JPA).

This extension jumps through a few hoops to ensure that everything is

done as properly as possible.

Specifically, any `DataSource`s behind the scenes are sourced from CDI

itself as just regular CDI beans.  Additionally, if your CDI

implementation has transactional support, this extension will leverage

it.  Yes, that means your `persistence.xml` can specify transactional

data sources.

This extension is often used in conjunction with the [microBean JPA

Weld SE

Extension](https://github.com/microbean/microbean-jpa-weld-se/), the

[microBean Narayana JTA CDI

Extension](https://github.com/microbean/microbean-narayana-jta-cdi)

project and its [Weld

variant](https://github.com/microbean/microbean-narayana-jta-weld-se),

and the [microBean DataSource CDI HikariCP

Extension](https://microbean.github.io/microbean-datasource-cdi-hikaricp/).