Jboss jbpm 4.2 integration with spring

[msahai]

Hi community,

i have started using jboss jbpm 4.2 and managed to integrate it with spring.

i am able to deploy the sample process defintion and able to getProcessInstance , but when
i query for processInstance.getId() it is coming as null.
i had taken a look at source code and found out that id generation is done within Executionimpl class:
protected void composeIds() {
this.id = IdComposer.getIdComposer().createId(processDefinition, parent, this);
} and id composer is Databaseid composer or memoryIdComposer.

and default id generator implementation returns null for all process instances.

i also see <id-generator> in jbpm.cfg.xml and thinks that its value must be overridden somehow.
database used is mysql.

thanks
mayank

[mwohlf]

Hi msahai,

I think you are missing

<object class="org.jbpm.pvm.internal.id.DatabaseIdComposer" init="eager" />

in your jbpm.cfg.xml

[msahai]

hi mwohlf,

i did not get it properly.where i have to add this line.
do i have to add it within <id-generator> tag.
can you show me sample cfg , to which you are refering too.

my sample cfg is:

<?xml version="1.0" encoding="UTF-8"?>

<jbpm-configuration>





<process-engine-context>
<repository-service />
<repository-cache />
<execution-service />
<history-service />
<management-service />
<identity-service />
<task-service />

<!-- Here we needed to change the transaction interceptor -->
<command-service name="txRequiredCommandService">
<skip-interceptor />
<retry-interceptor />
<environment-interceptor />
<spring-transaction-interceptor transactionManager="transactionManager"/>
</command-service>

<command-service name="newTxRequiredCommandService">
<retry-interceptor />
<environment-interceptor policy="requiresNew" />
<spring-transaction-interceptor transactionManager="transactionManager"/>
</command-service>


<!-- Added spring as read-context -->
<script-manager default-expression-language="juel"
default-script-language="juel"
read-contexts="execution, environment, process-engine, spring"
write-context="">
<script-language name="juel"
factory="org.jbpm.pvm.internal.script.JuelScriptEngineFactory" />
</script-manager>



<id-generator/>


<address-resolver />

<business-calendar>






</business-calendar>

<mail-template name='task-notification'>

${task.name}
<![CDATA[Hi ${task.assignee},
Task "${task.name}" has been assigned to you.
${task.description}

Sent by JBoss jBPM
]]>
</mail-template>

<mail-template name='task-reminder'>

${task.name}
<![CDATA[Hey ${task.assignee},
Do not forget about task "${task.name}".
${task.description}

Sent by JBoss jBPM
]]>
</mail-template>



</process-engine-context>

<transaction-context>
<repository-session />
<db-session />

<message-session />
<timer-session />
<history-session />
<mail-session>
<mail-server>
<session-properties resource="jbpm.mail.properties" />
</mail-server>
</mail-session>

<!-- Need to set explicitly that we don't want jbpm to create sessions -->
<hibernate-session current="true" />
</transaction-context>
</jbpm-configuration>

[msahai]

ok i got it,

thanks for help

mayank sahai