THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Overview
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The Geronimo-specific deployment plan for a Web application, which is usually packaged as a WAR file, is called "geronimo-web.xml".
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Packaging
The geronimo-web.xml Geronimo-specific deployment plan can be packaged as follows:
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The root XML element in the geronimo-web-2.0.1.xsd schema is the <web-app> element. The top-level XML elements of the <web-app> root element are described in the sections below. The deployment plan should always use the Web application namespace, and it typically requires elements from Geronimo System, Geronimo Naming, Geronimo Security, Geronimo Application, and Geronimo Persistence namespaces. Additionally, it has a required attribute to identify its configuration name, and an optional attribute to select a parent configuration. A typical deployment for geronimo-web.xml can be presented as follows:
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<sys:environment>
The <sys:environment> XML element uses the Geronimo System namespace, which is used to specify the common elements for common libraries and module-scoped services, and is documented here:
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An example geronimo-web.xml file is shown below using the <sys:environment> element:
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<context-root>
The <context-root> XML element uses the Geronimo default namespace for the geronimo-web.xml file, and is documented here:
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This element is used to specify a reference to a web-container specific GBean either via a pattern to the moduleId of the configuration, or via a link to a GBean. As an example, consider the case where it is required to run a web application in a Tomcat container using a dedicated port such that no other web application is allowed to use that port. To accomplish this a separate GBean would have to be defined for the "Container", "Engine", "Host", and "Connector", and a <naming:web-container> element would have to be used to reference this new Tomcat container. An example geronimo-web.xml file is shown below:
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<container-config>
As previously mentioned, there are actually three schemas that can be used for the geronimo-web.xml file. The first is container-independent and can be used to deploy a web application to either of the web containers supported by Geronimo. The second two are container-dependent that contain elements specific to either the Tomcat or Jetty web container:
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Which to use is left to the discretion of the user. If a web application is meant to be deployed to both Tomcat and Jetty, then the generic schema is typically used, and if a web application is meant to be deployed to only Tomcat or Jetty, then one of the container-specific schemas is typically used. However, another option is available since the generic schema allows the inclusion of the container-specific elements found in the container-specific schemas by using the <container-config> element. This allows the user to use the generic schema even when the web application requires container-specific configuration for Tomcat or Jetty (or both). An example geronimo-web.xml file is shown below using the <container-config> element to configure the Tomcat web container. Note that the <host>, <valve-chain>, and <tomcat-realm> elements are understood only by the Tomcat container, not Jetty:
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<sys:gbean>
The <sys:gbean> XML element uses the Geronimo System namespace, and is documented here:
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<app:security>
The <app:security> XML element uses the Geronimo Security namespace, and is documented here:
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The <app:security> element groups the security role mapping settings for the web application. This is an optional element, but if it is present all the web modules must make the appropriate access checks as outlined in the JACC specification. This element includes the <role-mapping> section that references the role(s) defined in the <security-role> element in the web.xml file. An example web.xml and corresponding geronimo-web.xml file is shown below with the "admin" role name defined in the web.xml is referenced in the geronimo-web.xml:
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JNDI Environment References
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An example geronimo-web.xml file is shown below using the <abstract-naming-entry> element to reference a persistence unit:
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<naming:ejb-ref>
The <naming:ejb-ref> element is used to map EJB references to EJB's in other applications using remote home and remote interface. The application which contains the EJB being referenced should either be in same EAR or should be included in dependency list of this application. Also note as the EJB's referenced are in a different JVM all the client interfaces should also be included in the current application.
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