Support for list types in form properties?

[oconnor0]

I have a situation where I want to call a bunch of subprocesses. I want to be able to configure the possible & actual subprocesses via some data-driven method. My initial thinking was to do this via a list form property where each value is from a data-driven enum. It doesn't appear that Activiti supports list form properties.

Is there a way to handle list form properties?
Is there a better way to solve what I'm trying to do?

Thanks.

[frederikherema1]

Activiti has an "enum" type, which allows you to select from a predefined list of values:

(extract from user guide)

<activiti:formProperty id="vacationApproved" name="Do you approve this vacation" type="enum" required="true">
          <activiti:value id="true" name="Approve" />
          <activiti:value id="false" name="Reject" />
        </activiti:formProperty>

[oconnor0]

Activiti has an "enum" type, which allows you to select from a predefined list of values:

(extract from user guide)

<activiti:formProperty id="vacationApproved" name="Do you approve this vacation" type="enum" required="true">
          <activiti:value id="true" name="Approve" />
          <activiti:value id="false" name="Reject" />
        </activiti:formProperty>

I am aware of the enum type. What I was trying to ask was for something somewhat different.

1. Is there a way to make the possible values of a enum data-driven instead of hardcoded in the workflow?
For example, something like
<activiti:formProperty id="vacationApproved" type="enum" required="true" activiti:values="${someBean.someMethod()}"/>2. Is there a way to create a list or multi-select type? I want to specify a variable/form property that represents a collection.
For example, something like
<activiti:formProperty id="vacationApproved" type="list" required="true" />3. If there is a list type, is there a way to specify the value of types stored in that list?
For example, something like
<activiti:formProperty id="vacationApproved" type="list" required="true">
    <activiti:containedValues type="enum"> …. </activiti:containedValues>
</activiti:formProperty>

[frederikherema1]

There is nothing like that implemented right now. However, it's possible to define your own types, see Jorams blog-post for a good summary:

http://www.jorambarrez.be/blog/2013/03/13/creating-a-new-form-property-in-activiti/

[oconnor0]

Thanks for the information.

[chopper]

would i have to alter org.activiti.engine.impl.form.FormTypes (parseFormPropertyType()) to be able to access an additional attribute activiti:values like:
<code>
<activiti:formProperty id="vacationApproved" type="enum" required="true" activiti:values="${someBean.someMethod()}"/>
</code>

from the custom formtype?

[trademak]

Yes, you need to do some custom development there. You would also need to change the way the form property is parsed in the activiti-bpmn-converter project.

Best regards,