deployment order of modules within an EAR

[wqtjboss]

Hi,

I noticed by default the EJB modules in an EAR are deployed before WEB modules. That is, even if I specify a WEB module before an EJB module in teh application.xml, the EJB is still deployed first.

Is there a way to change the default deployment order? Why doesn't JBoss honor the order in which modules are specified in application.xml?

Thanks,
Qingtian

[peterj]

I have seen a statement (in AOP, I believe) that in 4.05 JBoss deploys modules in the order in which they appear in application.xml.

[oyabun]

Read more about the jboss-service.xml

C:\jboss-4.0.2\server\default\conf\jboss-service.xml
...
 <!-- ==================================================================== -->
 <!-- Deployment Scanning -->
 <!-- ==================================================================== -->

 <!-- An mbean for hot deployment/undeployment of archives.
 -->
 <mbean code="org.jboss.deployment.scanner.URLDeploymentScanner"
 name="jboss.deployment:type=DeploymentScanner,flavor=URL">

 <!-- Uncomment (and comment/remove version below) to enable usage of the
 DeploymentCache
 <depends optional-attribute-name="Deployer">jboss.deployment:type=DeploymentCache</depends>
 -->
 <depends optional-attribute-name="Deployer">jboss.system:service=MainDeployer</depends>

 <!-- The URLComparator can be used to specify a deployment ordering
 for deployments found in a scanned directory. The class specified
 must be an implementation of java.util.Comparator, it must be able
 to compare two URL objects, and it must have a no-arg constructor.
 Two deployment comparators are shipped with JBoss:
 - org.jboss.deployment.DeploymentSorter
 Sorts by file extension, as follows:
 "sar", "service.xml", "rar", "jar", "war", "wsr", "ear", "zip",
 "*"
 - org.jboss.deployment.scanner.PrefixDeploymentSorter
 If the name portion of the url begins with 1 or more digits, those
 digits are converted to an int (ignoring leading zeroes), and
 files are deployed in that order. Files that do not start with
 any digits will be deployed first, and they will be sorted by
 extension as above with DeploymentSorter.
 -->
 <attribute name="URLComparator">org.jboss.deployment.DeploymentSorter</attribute>
 <!--
 <attribute name="URLComparator">org.jboss.deployment.scanner.PrefixDeploymentSorter</attribute>
 -->

Regards,
Alex

[jaikiran]

PeterJ is right, the ordering within an ear was supposed to be based on the order in which the modules have been mentioned in the application.xml. However, looks like this was broken sometime back as per this issue:

http://jira.jboss.com/jira/browse/JBAS-2904

Related discussion:

http://www.jboss.com/index.html?module=bb&op=viewtopic&t=78376