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Oracle GlassFish Server 3.1 Add-On Component Development Guide
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Document Information

Preface

1.   Introduction to the Development Environment for GlassFish Server Add-On Components

2.  Writing HK2 Components

HK2 Component Model

Services in the HK2 Component Model

HK2 Runtime

Scopes of Services

Instantiation of Components in HK2

HK2 Lifecycle Interfaces

Inversion of Control

Injecting HK2 Components

Extraction

Instantiation Cascading in HK2

Identifying a Class as an Add-On Component

Using the Apache Maven Build System to Develop HK2 Components

3.  Extending the Administration Console

4.  Extending the asadmin Utility

5.  Adding Monitoring Capabilities

6.  Adding Configuration Data for a Component

7.  Adding Container Capabilities

8.  Creating a Session Persistence Module

9.  Packaging, Integrating, and Delivering an Add-On Component

A.  Integration Point Reference

Index

HK2 Component Model

The Hundred-Kilobyte Kernel (HK2) provides a module system and component model for building complex software systems. HK2 forms the core of GlassFish Server's architecture.

The module system is responsible for instantiating classes that constitute the application functionality. The HK2 runtime complements the module system by creating objects. It configures such objects by: