Form Property 'Long' Is Interpreted by Java Class as 'Intege

[ct1]

I specified a "long" type for an activiti:formProperty in the BPMN20.xml (actually in Designer) for variables "loanAmount" and "income".  Then in a Java class I tried to do execution.getVariable("varName") casting the return value to both a Long and a String.  Each time I had a "ClassCastException: java.lang.Integer cannot be cast to java.lang.String (or java.lang.Long)".  Is "long" data type supported or should I expect to always use Integer in the Java programs?

Thank you.

The bpmn20.xml file:

    <startEvent id="theStart" name="Start">      <extensionElements>        <activiti:formProperty id="name" name="Name" type="string" required="true" readable="true" writable="true"></activiti:formProperty>        <activiti:formProperty id="emailAddress" name="Email address" type="string" required="true" readable="true" writable="true"></activiti:formProperty>        <activiti:formProperty id="loanAmount" name="Loan Amount" type="long" required="true" readable="true" writable="true"></activiti:formProperty>        <activiti:formProperty id="income" name="Income" type="long" required="true" readable="true" writable="true"></activiti:formProperty>      </extensionElements>    </startEvent>    <scriptTask id="checkCredit" name="Check Credit" scriptFormat="groovy">      <script><![CDATA[out:println " In script of Check Credit, Checking credit for " + name;creditCheckOk = false;if((income / 2) > loanAmount){creditCheckOk = true};out:println "Credit checked for " + name + " creditCheckOk is " + creditCheckOk;]]></script>    </scriptTask>    <sequenceFlow id="flow1" name="" sourceRef="theStart" targetRef="checkCredit"></sequenceFlow>    <endEvent id="endevent1" name="End"></endEvent>    <sequenceFlow id="flow2" name="" sourceRef="checkCredit" targetRef="createApplication"></sequenceFlow>    <serviceTask id="createApplication" name="Service Task" activiti:class="com.argo.loanreq2.CreateApplicationTask"></serviceTask>    <userTask id="evaluateLoanRequest" name="Evaluate Loan Request" activiti:assignee="fozzie">      <documentation>Evaluate the application</documentation>      <extensionElements>        <activiti:formProperty id="income" name="Income of Customer" variable="${loanApplication.income}" required="false" readable="true" writable="false"></activiti:formProperty>        <activiti:formProperty id="requestedAmount" name="Requested loan amount" variable="${loanApplication.requestedAmount}" required="false" readable="true" writable="false"></activiti:formProperty>        <activiti:formProperty id="customerName" name="Customer Name" variable="${loanApplication.customerName}" required="false" readable="true" writable="false"></activiti:formProperty>        <activiti:formProperty id="creditCheckOk" name="Outcome of credit check" variable="${loanApplication.creditCheckOk" required="false" readable="true" writable="false"></activiti:formProperty>        <activiti:formProperty id="motivation" name="Motivation" required="false" readable="true" writable="true"></activiti:formProperty>        <activiti:formProperty id="requestApproved" name="Do you approve the request?" type="enum" required="true" readable="true" writable="true"></activiti:formProperty>      </extensionElements>    </userTask>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

The Java class:

package com.argo.loanreq2;import java.util.HashMap;public class CreateApplicationTask implements JavaDelegate{   public void execute(DelegateExecution execution)   {      LoanApplication la = new LoanApplication();            la.setCreditCheckOk( (Boolean) execution                                 .getVariable("creditCheckOk"));            la.setCustomerName( (String) execution.getVariable("name"));            Map<String, Object> theVariables = new HashMap<String, Object>();            theVariables = execution.getVariables();            Set <String> varNames = execution.getVariableNames();      Iterator varNamesIterator = varNames.iterator();            while(varNamesIterator.hasNext())      {         String oneName = new String();         oneName = (String) varNamesIterator.next();                  Object varObj = (Object) theVariables.get(oneName);                  String className = new String();                  className = varObj.getClass().getName();                  System.out.println("In execute() have oneName = "                        + oneName                        + " of class = "                        + className);                              }                     Long aLongIncome = Long.valueOf( (String) execution.getVariable("income"));//      la.setIncome( (Long) execution.getVariable("income"));      la.setIncome(aLongIncome);            Long aLongReqAmt =          Long.valueOf( (String) execution.getVariable("loanAmount"));//      la.setRequestedAmount( (Long) execution.getVariable("loanAmount"));      la.setRequestedAmount(aLongReqAmt);            la.setEmailAddress( (String) execution.getVariable("emailAddress"));            System.out.println("In execute() set la.creditCheckOk = "                     + la.getCreditCheckOk());      System.out.println("In execute() set la.customeName = "            + la.getCustomerName());      System.out.println("In execute() set la.income = "            + la.getIncome());      System.out.println("In execute() set la.requestedAmount = "            + la.getRequestedAmount());      System.out.println("In execute() set la.emailAddress = "            + la.getEmailAddress());            execution.setVariable("loanApplication", la);   }}‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

The Exception:

INFO: XPath currently not supported as expressionLanguage In script of Check Credit, Checking credit for Miss PiggyCredit checked for Miss Piggy creditCheckOk is trueIn execute() have oneName = loanAmount of class = java.lang.IntegerIn execute() have oneName = income of class = java.lang.IntegerIn execute() have oneName = name of class = java.lang.StringIn execute() have oneName = creditCheckOk of class = java.lang.BooleanIn execute() have oneName = emailAddress of class = java.lang.StringSep 27, 2011 9:52:45 AM org.activiti.engine.impl.interceptor.CommandContext closeSEVERE: Error while closing command contextjava.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String   at com.argo.loanreq2.CreateApplicationTask.execute(CreateApplicationTask.java:47)   at org.activiti.engine.impl.bpmn.behavior.ServiceTaskJavaDelegateActivityBehavior.execute(ServiceTaskJavaDelegateActivityBehavior.java:47)   at org.activiti.engine.impl.bpmn.behavior.ServiceTaskJavaDelegateActivityBehavior.execute(ServiceTaskJavaDelegateActivityBehavior.java:38)   at org.activiti.engine.impl.bpmn.helper.ClassDelegate.execute(ClassDelegate.java:104)   at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityExecute.execute(AtomicOperationActivityExecute.java:40)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

[trademak]

Which version of Activiti are you using? How did you test this?
With a unit test?
If so, please post the full project so I can reproduce it.

Best regards,

[ct1]

I acutally tested this with a unit test, changed to code to work in the unit test, deployed that via Explorer and tested in Explorer.  I had different results in both tests.  The unit test gave the results shown already had a class cast exception trying to cast an Integer to a String.  Explorer gave a class cast exception saying that I could not cast a Long to an Integer.

I am still working on the project and it is a little unstable right now.  As soon as I get it stable again I will post it for you.

Thank you.

[ct1]

The process still has some problems later than the part that shows the problem I described above, so here is a copy.  I am not sure what you mean by the full project.  Here is the bpmn20.xml and the classes that I use.  When I try to attach .java files, the forum form give me a message "The extensin java is not allowed" so I hope you get everything.  If not, I can get the code to you other ways.

Thank you.

[ct1]

The descrepancy I described is one I caused in my "tester" class.  When I put values into the process variables sent to the startProcessInstanceByKey() method, I specified Interger for the values.  So, naturally the process would interpret the fields as Integer rather than Long.

Thank you for your quick replies to my posts and patience while I am still learning how to work with the engine.