我们可以从JBPM的workitemhandler调用EJB吗？有没有人能给出一些参考网站或例子？

import org.kie.api.runtime.process.WorkItem;
import org.kie.api.runtime.process.WorkItemHandler;
import javax.ejb.EJB;

public class MyWorkItemHandler implements WorkItemHandler {

    @EJB
    private MyEJB myEJB;

    public void executeWorkItem(WorkItem workItem, WorkItemManager manager) {
        // 调用EJB的业务逻辑
        myEJB.doSomething();
        // 完成工作项
        manager.completeWorkItem(workItem.getId(), null);
    }

    public void abortWorkItem(WorkItem workItem, WorkItemManager manager) {
        // 中止工作项
        manager.abortWorkItem(workItem.getId());
    }
}