Hi,

In order to access varaibles inside the Human Task, you have to map those variables in to the Human Task in workflow definition using Parameter Mapping attribute in the properties tab. Note that the parameter map for the Human Task should be of 'Content' only.

Also in the code, you have to invoke taskData.getDocumentContentId() to get the content which contains the parameter values that mapped in the definition. The sample code is as follows:

public static Object getContent(long contentId) {

        connect();

        Object obj = null;

        try {

            BlockingGetContentResponseHandler responseHandler = new BlockingGetContentResponseHandler();

            client.getContent(contentId, responseHandler);

            Content content = responseHandler.getContent();

            byte[] byteContent = content.getContent();

            ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(

                    byteContent);

            ObjectInputStream inputStream = new ObjectInputStream(

                    byteArrayInputStream);

            obj = inputStream.readObject();

        } catch (Throwable t) {

            t.printStackTrace();

        }

        return obj;

    }

Hope this helps to solve your problem.

Regards,

Loga

If i'm not mistaken when using a task any variables i.e. comming from parammeter mapping, or even entry actions etc should be placed in content then the content is accessed like below,

long contentId = task.getTaskData().getDocumentContentId();

                if (contentId != -1) {

                        BlockingGetContentResponseHandler getContentResponseHandler = new BlockingGetContentResponseHandler();

            client.getContent(contentId, getContentResponseHandler);

            Content content = getContentResponseHandler.getContent();

all other arguments of task are access from the methods of TaskData , i.e. task.getTaskData().getComments(); etc

Otherwise a custom workitem has method getParameter for the custom arguments specified for this workitem.But again the variables from parameter mapping and entry actions will have to be placed to the specific argument of that workitem.

Please correct me if there is a better approach....

p.s. window open toooo long just noticed LOGANATHAN's reply.... sorry

Good i'm glad it worked out for

Actually, you can use several methods to set variables and parameters for example,

1. result mapping (as you already mentioned), if you want to map a process variable to a value from the result parameter of the task

2. parameter mapping (as loganathan mentioned) - here you can map parameters of the task with process variables

3. set a task parameter i.e. in the properties of the task at the content parameter field of the task place a notation like #{some_value_from_variable}

4. set process variables within on entry actions and on exit actions and then use the parameter mapping to map those variables to your task parameters and use them in your task i.e. (from the sample.bpmn of the jbpm5 installation),

on entry action

java.util.Map contentParam = new java.util.HashMap();

contentParam.put("reason", reason);

contentParam.put("performance", performance);

kcontext.setVariable("content", contentParam);

Parameter mapping

{Content=content}

5. on exit action you can set parameters to variables as shown in the code above