How to use loop in a flow ruleset?

Question

In a flow ruleset of BRM, activity has a "loop" checkbox in property. When I check it,I don't know how to select values in "For each" and "in" drop-down menus. Who can help me?

Answer 1

hi, i just try my code again this morning, and noticed i can get setPropertyActionListener to work if i pass String instead of a "Item" object under target attribute. however, the value attribute won't take an expression.... it seems like i can only pass a literal string???
this work...
menuItem are now type String instead of type Item,
<c:forEach items="${sessionScope.ServiceManager.menus}" var="menu">
     <p class="formTitle">${menu.stapleType}:</p>
     <table class="displayData">
          <c:forEach items="${menu.items}" var="item">
          <tr>
               <td class="leftCol">${item.name} ($${item.price})</td>
               <td class="rightCol">
                    <h:commandLink value="Edit" action="#{menuBean.editRow_click}">
                    <f:setPropertyActionListener target="#{menuBean.menuItem}" value="lalala"/>
                    </h:commandLink>
               </td>
          </tr>
          </c:forEach>
     </table>
</c:forEach>when clicking the edit link, i'll get "lalala"
public void editRow_click(){
          System.out.println("edit row click: "+ this.getMenuItem());
     }if i switch to expression, this won't work:
<f:setPropertyActionListener target="#{menuBean.menuItem}" value="#{item.id}"/>when click edit link, i'll get a empty string
if i switch to jstl expression, this will cause run time error:
<f:setPropertyActionListener target="#{menuBean.menuItem}" value="${item.id}"/>
org.apache.jasper.JasperException: /WEB-INF/formDataView/menu_view.jsp(15,4) According to TLD or attribute directive in tag file, attribute value does not accept any expressions