FormProperty retrieval of boolean value returns null

sistemasmunicip — Wed, 06 Mar 2013 16:25:40 GMT

Hello, I'm quite new to Activiti and am currently integrating it to a GXT project. I have problems retrieving form properties of boolean type.The values seem to be recording ok in the data base (the engine stores 1 or 0 to long_ field according to true or false values) but when i want to retrieve th

Re: FormProperty retrieval of boolean value returns null

frederikherema1 — Thu, 07 Mar 2013 14:29:10 GMT

How (with what code) do you retrieve the variable-values when you want to display them?

Re: FormProperty retrieval of boolean value returns null

sistemasmunicip — Thu, 07 Mar 2013 15:03:35 GMT

Hi Frederik, thanks for your reply. Here's the code, reduced to the way I get the values from the engine because I use some class of my own to handle the retrieved data.

This is a basic iteration of the properties collection where I use a sysout to display it. This code returns null for boolean values.
I'm using formProperty.getValue() as getter.
Can't figure out, what am I doing wrong?


tasks = taskService.createTaskQuery().taskAssignee(this.getUsuario()).list();

 if(tasks != null)
 {
  for(Task task : tasks)
  {
   // tomo las propiedades del form que definí para el task
   TaskFormData taskFormData = processEngine.getFormService().getTaskFormData(task.getId());
   List<FormProperty> listaFormProperty = taskFormData.getFormProperties();
   // si hay al menos 1 form property en el task
   if(listaFormProperty.size() > 0)
   {
    for(FormProperty formProperty : listaFormProperty)
    {
     LinkedHashMap<String, String> mapaFormProperties = new LinkedHashMap<String, String>();
     FormType tipoForm = formProperty.getType();

     Object information = tipoForm.getInformation("values");
     if(information != null)
     {
      // Si es HashMap va a venir con <String, String>, viene de un ENUM
      if(information instanceof HashMap<?, ?>)
      {
       HashMap<String, String> mapaInformation = (HashMap<String, String>) information;
       mapaFormProperties.putAll(mapaInformation);
      }
     }
     
     System.out.println("id: "+formProperty.getId()+" nombre "+tipoForm.getName()+" value "+formProperty.getValue());
     
    }
    
   }
  }
 }

And the XML definition of the task's form properties:


<userTask id="SolDatLicCom" name="Solicitar Datos Licencia Comercial" activiti:candidateGroups="rentas.comercio">
      <extensionElements>
        <activiti:formProperty id="TipoAlta" name="Tipo Alta" type="enum" required="true" readable="true" writable="true">
          <activiti:value id="AltaNormal" name="Alta Normal"></activiti:value>
          <activiti:value id="AltaBajaSimultanea" name="Alta y Baja Simultánea"></activiti:value>
          <activiti:value id="CbioDomi" name="Cambio de Domicilio"></activiti:value>
          <activiti:value id="CbioNomFan" name="Cambio Nombre de Fantasía"></activiti:value>
          <activiti:value id="CbioRub" name="Cambio de Rubro"></activiti:value>
          <activiti:value id="AnexRub" name="Anexión de Rubro"></activiti:value>
          <activiti:value id="RenovLic" name="Renovación de Licencia"></activiti:value>
          <activiti:value id="Otros" name="Otros (especificar en campo Otros)"></activiti:value>
        </activiti:formProperty>
        <activiti:formProperty id="TipoAltaOtros" name="Tipo de Alta - Otros" type="string" required="false" readable="true" writable="true"></activiti:formProperty>
        <activiti:formProperty id="NC" name="Nomenclatura Catastral" type="string" required="true" readable="true" writable="true"></activiti:formProperty>
        <activiti:formProperty id="EsCbioFan" name="Es cambio Nombre de Fantasía?" type="boolean" variable="vEsCbioFan" required="true" readable="true" writable="true"></activiti:formProperty>
        <activiti:formProperty id="NomFan" name="Nombre de Fantasía" type="string" required="true" readable="true" writable="true"></activiti:formProperty>
        <activiti:formProperty id="FecSolicitud" name="Fecha Solicitud" type="date" required="true" readable="true" writable="true"></activiti:formProperty>
        <activiti:formProperty id="ReqInspObPart" name="¿Requiere Inspección de Obras Particulares?" type="boolean" variable="vReqInspObPart" required="true" readable="true" writable="true"></activiti:formProperty>
      </extensionElements>
    </userTask>

Thanks again
Esteban

Re: FormProperty retrieval of boolean value returns null

frederikherema1 — Thu, 07 Mar 2013 15:17:42 GMT

If I get you correctly, you have a process with a variable named "vReqInspObPart" which is already filled in, prior to you fetching the form-properties?

Re: FormProperty retrieval of boolean value returns null

sistemasmunicip — Thu, 07 Mar 2013 15:46:06 GMT

Frederik: the variable was not filled in, so I guess the null was coming from the process variable? Anyway, I took out the variable binding and the values are returning as they should. Could I have solved it assigning a "default" value to "vReqInspObPart" ?
In any case, the boolean are to use with exclusive gateways on the process and are working ok.
Sorry to waste your time, thanks for your help
Esteban

Re: FormProperty retrieval of boolean value returns null

frederikherema1 — Fri, 08 Mar 2013 09:37:19 GMT

Yes, adding a default would have helped…

Re: FormProperty retrieval of boolean value returns null

sistemasmunicip — Fri, 08 Mar 2013 16:12:01 GMT

LOL , learn from mistakes… Anyway, so far the integration is quite easy, I like that

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FormProperty retrieval of boolean value returns null

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Re: FormProperty retrieval of boolean value returns null

Re: FormProperty retrieval of boolean value returns null

Re: FormProperty retrieval of boolean value returns null

Re: FormProperty retrieval of boolean value returns null