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Eclipse OpenWebBeans

Eclipse OpenWebBeans is a Java-based Contexts and Dependency Injection (CDI) (application framework) implementation that provides a managed component model and dependency injection services for Java applications compliant with the Jakarta CDI specifications (dependency injection / enterprise middleware).

  • Implementation of the Jakarta Contexts and Dependency Injection (CDI) specification for Java (dependency injection).
  • Supports type-safe dependency injection, contextual lifecycle management, and scoping for managed beans (application framework).
  • Integrates with Java EE / Jakarta EE style runtimes and web containers to provide CDI services across application layers (enterprise middleware).
  • Provides an embeddable CDI container suitable for standalone, SE-style, or testing environments (runtime container).
  • Offers extension points and Stateful Packet Inspection (SPI) for integrating custom scopes, interceptors, and other CDI-based extensions (extensibility framework).

More About Eclipse OpenWebBeans

Eclipse OpenWebBeans is a Java implementation of the Jakarta Contexts and Dependency Injection (CDI) specification, positioned as a core runtime for dependency injection and contextual lifecycle management in Java and Jakarta EE environments (dependency injection / enterprise middleware).

The project focuses on providing type-safe dependency injection of managed beans, with support for scopes, qualifiers, producers, interceptors, and decorators as defined by the CDI specification (application framework). By aligning with CDI, OpenWebBeans allows developers to define application components using annotations and to rely on the container to manage object creation, injection, and destruction according to specified scopes such as request, session, and application. This enables a decoupled component model suitable for layered enterprise applications.

In enterprise deployments, Eclipse OpenWebBeans can run inside web containers or application servers that integrate a CDI implementation (enterprise middleware). It enables CDI services across presentation, business, and persistence layers, allowing beans to participate in interception, events, and contextual lifecycle management. The implementation is designed to interoperate with other Jakarta EE technologies that rely on CDI, such as component models built around annotations and injection.

OpenWebBeans also provides an embeddable CDI container that can be used in standalone Java Secure Element (SE) environments or integrated into custom runtimes (runtime container). This enables usage in microservices, background processes, command-line tools, or integration tests that require CDI features without a full application server. Developers can bootstrap the container programmatically and register beans, extensions, and configuration suitable for the target environment.

The project exposes Service Provider Interfaces (SPIs) and extension hooks that allow integration with additional scopes, custom injection behavior, and other CDI extensions (extensibility framework). This supports frameworks and libraries that build on CDI to provide cross-cutting capabilities like security, validation, or transaction participation. Because it implements the Jakarta CDI specification, Eclipse OpenWebBeans fits into ecosystems and toolchains built around that standard.

From a directory and taxonomy perspective, Eclipse OpenWebBeans is categorized as a Jakarta CDI-compliant dependency injection container for Java, operating in the enterprise middleware and application framework domains. It is relevant for organizations standardizing on Jakarta EE or CDI-based programming models and for teams requiring an embeddable CDI runtime for modular Java applications.