Application and Server Zones

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We recommend a specific file structure for JVx applications because every JVx projects should use the same structure. This makes it easier to maintain applications as everything is standardized.

Our recommended structure is:

<basedir>
 |- rad              (Configuration.getConfigurationDir())
   |- apps           (Configuration.getApplicationsDir())
     |- <appname>
       |- config.xml (Configuration.getApplicationZone(<appname>))
   |- server         (Configuration.getServerDir())
     |- config.xml   (Configuration.getServerZone())

The source code and IDE projects should be saved in <appname> like:

- <appname>
 |- src.client
 |- src.server
 |- test
 |- libs
   |- client
   |- server
 |- .classpath
 |- .project
 |- config.xml (Configuration.getApplicationZone(<appname>))

The problem with the above structure is that you need a lot of directories and the project itself is in the last level. The advantage is that you can manage multiple applications with one server configuration. However, usually you have at least one application.

We introduced a new search strategy for application and server configuration files. Before JVx 2.1, everything was file based. Every config.xml had to be available as physical file. With 2.1 this is not needed.

The new search strategy is as follows.

Application Zone

1: Filesystem: <appsdir>/<appname>/config.xml
2: Filesystem: <appsdir>/../config.xml
   Filesystem: <appsdir>/../../config.xml
   Filesystem: <appsdir>/../../../config.xml
   Filesystem: <appsdir>/../../../../config.xml
3: JNDI:       java:/comp/env/jvx/<appname_lowercase>/config 
               (String as resource path), InputStream or IVirtualZone implementation)
4: Classpath:  /rad/apps/<appname_lowercase>/config.xml (can be disabled)
5: Classpath:  /config.xml (can be disabled)
6: EXCEPTION

Server Zone

1: Filesystem: <serverdir>/config.xml
2: Filesystem: <serverdir>/../server.xml
   Filesystem: <serverdir>/../../server.xml
   Filesystem: <serverdir>/../../../server.xml
   Filesystem: <serverdir>/../../../../server.xml
3: JNDI:       java:/comp/env/jvx/server/config 
               (String as resource path), InputStream or IVirtualZone implementation)
4: Classpath:  /rad/server/config.xml (can be disabled)
5: Classpath:  /server.xml (can be disabled)
6: EMPTY configuration

public File getDirectory();
public File getFile()