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http://jira.jboss.com/jira/browse/JBSEAM-1034?page=comments#action_12366426 ]
Arjan van Bentem commented on JBSEAM-1034:
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In fact, Michael Yuan's book JBoss Seam Simplicity and Power Beyond Java EE also does
not explain this issue (page 265). So I feel it's really important to make this clear
in the online documentation. That is:
1- please at least extend "Installing process definitions" to explain how to
initialize jBPM without loading any process definition through components.xml; maybe
something like the following:
http://fisheye.jboss.com/browse/JBoss/jboss-seam/doc/reference/en/modules...
We need to install jBPM:
<core:jbpm />
[BEWARE: is it indeed enough to just include an empty <core:jbpm> node?]
We also need to tell jBPM where to find the business process definitions.
The following will reload them into the jBPM database tables each time
the application is started, and can be very helpful during development:
<core:jbpm>
<core:process-definitions>
<value>todo.jpdl.xml</value>
</core:process-definitions>
</core:jbpm>
See the jBPM documentation for examples on loading the process definitions
into a production environment.
2- maybe add an annotation to the components.xml XSD, so smart IDEs will show a tooltip?
Cheers,
Arjan.
Usage of jBPM core:process-definitions needs clarification
----------------------------------------------------------
Key: JBSEAM-1034
URL:
http://jira.jboss.com/jira/browse/JBSEAM-1034
Project: JBoss Seam
Issue Type: Bug
Components: Documentation
Affects Versions: 1.2.0.GA
Environment: All
Reporter: Arjan van Bentem
Priority: Minor
The Seam documentation for "21.6. Configuring jBPM in Seam" describes how to
add jBPM process definitions to components.xml:
<core:jbpm>
<core:pageflow-definitions>
<value>createDocument.jpdl.xml</value>
<value>editDocument.jpdl.xml</value>
<value>approveDocument.jpdl.xml</value>
</core:pageflow-definitions>
<core:process-definitions>
<value>documentLifecycle.jpdl.xml</value>
</core:process-definitions>
</core:jbpm>
Nice, but as a side-effect a new copy is inserted into the database each time JBoss AS is
started, even if the deployed EAR has not changed. This, of course, can only be noticed if
in the example hibernate.cfg.xml from the DVD Store example the line
<property name="hbm2ddl.auto">create-drop</property>
is changed into
<property name="hbm2ddl.auto">update</property>
Apparently using <core:pageflow-definitions> is considered to be a developers
tool:
http://www.jboss.com/index.html?module=bb&op=viewtopic&t=98430
http://www.jboss.com/index.html?module=bb&op=viewtopic&t=90206
http://www.jboss.com/index.html?module=bb&op=viewtopic&t=103819
I think this needs some clarification in the documentation, but unfortunately (right now)
I would not know what is the preferred way to deploy processes in Seam on a production
machine. The third topic might include some ideas from others on that.
Arjan.
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