By Vamsavardhana Reddy Chillakuru
This publication is a complete reference of the Apache Geronimo software Server with easy-to-understand examples and pattern functions. various configuration goods can be found as self contained chapters that may be seemed up independently of the opposite chapters in order that readers can move directly to no matter what a part of Geronimo they wish to configure. The publication is filled with counsel and tips, in keeping with the author's event with Apache Geronimo in real-life initiatives. This booklet is meant for Java EE builders and server directors who wish to use Geronimo for constructing and deploying totally fledged Java EE five purposes and freely distribute Geronimo with their ideas. Readers may be accustomed to Java EE five techniques.
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Extra resources for Apache Geronimo 2.1 Quick Reference
A configuration contains the following persistable attributes: • • • Its configurationData The configurationData represents all of the information that is stored in this configuration. Among the information that it contains is the classpath of this configuration (a list of URLs to locations where the classes representing this configuration are located), its configurationId (a unique ID for identifying this configuration to the kernel), the namespace of this configuration, and a byte array representing the state of all of the GBeans in this configuration.
34 ] Chapter 2 • Dependency Management Finally, the Apache Geronimo Kernel provides Dependency Management— that is, the management of dependencies for the services deployed in the server. The dependencies for a configuration or module are specified in the deployment plan for that module. So the kernel provides the plumbing that will link a configuration together with all of its dependencies. Dependency Management also includes making sure that all of the services that a configuration depends on are started before the configuration is started.
If the dependency is on a jar type artifact, which is not a configuration, the classes of that jar type artifact are added to the classpath of the current configuration. High-level architecture Apache Geronimo consists of a lightweight kernel that provides services such as Lifecycle Management, Dependency Management, Repository, and Configuration Management to the other services that are deployed on it. As we saw earlier in the chapter, the basic manageable unit in Apache Geronimo is the GBean.