Wicket Jbpm

[locrianmode]

Hi,

I'm trying to port the seam todo example to Wicket. I've managed to insert task instances but how do I retrieve the task list like in the seam todo example? In the todo.jsp in the example, task lists are retrieved with the #{taskInstancePriorityList} variable. How do I do this in Wicket?

What would be the correct scope for the injected TaskInstancePriorityList?

Below is what I have. In this case, taskInstancePriorityList is always null.

Thanks.

public class HomePage extends BasePage {

    @In
    Actor actor;
    @In(create = true)
    Login login;
    @In(required = false, scope = ScopeType.APPLICATION)
    TaskInstancePriorityList taskInstancePriorityList;
    @In(create = true)
    TodoList todoList;
    List<TaskInstance> taskInstances = new ArrayList<TaskInstance>();

    public HomePage() {
        if (taskInstancePriorityList != null) {
            setTaskInstances(taskInstancePriorityList.getTaskInstanceList());
        }
        ListView view = new ListView("taskInstances", new PropertyModel(this, "taskInstances")) {

            @Override
            protected void populateItem(ListItem item) {
                TaskInstance taskInstance = (TaskInstance) item.getModelObject();
                item.add(new Label("id", new Model(taskInstance.getId())));
            }
        };
        add(view);
        Form form = new Form("form") {

            @Override
            protected void onSubmit() {
                ValueMap values = (ValueMap) getModelObject();
                String description = values.getString("description");
                todoList.setDescription(description);
                todoList.createTodo();
                super.onSubmit();
            }
        };
        form.setModel(new CompoundPropertyModel(new ValueMap()));
        form.add(new TextField("description"));
        add(form);
    }

    public List<TaskInstance> getTaskInstances() {
        return taskInstances;
    }

    public void setTaskInstances(List<TaskInstance> taskInstances) {
        this.taskInstances = taskInstances;
    }
}

[cpopetz]

Your injection needs to be:

@In(create=true) List<TaskInstance> taskInstancePriorityList;

Because the JSF EL you're replicating will autocreate the taskInstancePriorityList if it doesn't exist and taskInstancePriorityList unwraps itself as a list of TaskInstances.

Note that BPM annotations won't work on Wicket components directly, but for this example that's ok, as the annotations are on TodoList itself.

-Clint

[locrianmode]

Works! Thanks Clint.