Replaced initialized value from any Contexts in property

[mladen.babic]

Hi,

I need a help about initialized value. I have list of entity which is iterated in dataTable component.
What I need is function which populates value from contexts to entity values Eg. We have Project entity as  projects value in dataTable. Project entity has property eg.String initValue = 'currentProject.createdDate' and I want that value be replaced with value from any contexts in application equals with value in property(We presume that 'currentProject' already exists in contexts) .

This is snipped of my code:


`
public Object getInitializedValue(String value) {

          if (value == null || "".equals(value)) {
               return "";
          }
          String methodName = null;
          boolean hasMethod = false;
          hasMethod = value.indexOf('.') > -1;

          Object injectedObject = Contexts
                    .lookupInStatefulContexts(hasMethod ? value.substring(0, value
                              .indexOf('.')) : value);

          if (hasMethod) {
               methodName = value
                         .substring(value.indexOf('.') + 1, value.length());
               methodName = methodName.substring(0, 1).toUpperCase()
                         + methodName.substring(1);
          }

          if (injectedObject != null) {

               try {
                    injectedObject = hasMethod ? injectedObject.getClass()
                              .getMethod("get" + methodName, new Class[] {}).invoke(
                                        injectedObject, new Class[] {})
                              : injectedObject;
               } catch (IllegalArgumentException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
               } catch (SecurityException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
               } catch (IllegalAccessException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
               } catch (InvocationTargetException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
               } catch (NoSuchMethodException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
               }
               return injectedObject;
          } else {
               return "";
          }
     }

`

and this is snippet part of my page

`
<ice:dataTable width="100%" value="#{projects}" rendered="#{not empty values}"
               var="project" id="SpTable1">
               <ice:column>
                    <f:facet name="header">
                         #{messages.value}
                    </f:facet>
<!-- INITIALIZED VALUE -->
                    <ice:inputText value="#{initializedValueHandler.getInitializedValue(project.initValue)}" rendered="#{project.value.propertyType eq 'INITIALIZED_VALUE'}" size="40" />
               </ice:column>

....
     

`
This works OK if I want only to show result, but what I really want is to allow user to edit new value in input text field which is not possible because there is no set method.

I think expression value or method might help but I'm not familiar with that.

Any help or idea will be appreciated.

Best regards,
Mladen

[jguglielmin]

I'm not sure I get exactly what you are trying to do, but why would you not just inject into your backing bean, the value from the context and update within the bean the value from the context....then you can save or discard on the page you are viewing this.  (the injected value could be transient part of bean, then on a save action, you could then update the entity). (that's if I am reading correctly what you want to do)