| Developer(s) | Eclipse Foundation |
|---|---|
| Stable release | 3.1.1 / July 4, 2024 |
| Repository | |
| Operating system | Cross-platform |
| Available in | Java 6 or Higher |
| Type | Dependency Injection Kernel |
| License | Eclipse Public License 2.0 or GPL v2 w/Classpath exception |
| Website | eclipse-ee4j |
HK2(Hundred-Kilobyte Kernel) is a light-weight and dynamic dependency injection framework and is a part of the GlassFish Application Server.
HK2 complies with JSR 330 (Dependency Injection for Java). It has useful utilities for marking classes as services and interfaces as contracts. [1]
Some of the features of HK2 DI Kernel are
- Custom scopes
- use of proxies
- Custom injection resolution
- Assisted injection
- J-I-T injection resolution
- Custom validation and security
- Run Level Services [1]