Pre-populate selected values in viewObject based shuttle component (multiple selection)- Oracle ADF

Hello All,
This post talks about a common development requirement
while using shuttle component sometimes we need to show some values on selected side of af:selectManyShuttle , so to do this normally we use a custom shuttle component that is populated from managed bean code
but when i have all data in a viewObject so why should i iterate viewObject to get all data in managed bean and then set some values in an arrayList to populate selected shuttle values.
it is time consuming and requires lot of coding, so for viewObject based shuttle we can do it in efficient way.

• In this example I'm using Departments table of HR schema to populate af:selectManyShuttle, i think you all know how to create a shuttle in ADF
• So next is to populate selected shuttle values on some event, created a fusion web application using Departments table
  


• It's time to drop Departments ViewObject on page as shuttle component



<af:selectManyShuttle value="#{bindings.Departments1.inputValue}" label="#{bindings.Departments1.label}"
                                      id="sms1" size="15" binding="#{pageFlowScope.ShuttleSelectBean.shuttleBind}"
                                      partialTriggers="b1">
                    <f:selectItems value="#{bindings.Departments1.items}" id="si1"/>
                    <f:validator binding="#{bindings.Departments1.validator}"/>
                </af:selectManyShuttle>



• So suppose on a button click i want to set selected values in shuttle, so i have created a actionEvent for button in managed bean and binding of af:selectManyShuttle, so basic structure of page is like this







• See the code of actionEvent , create an arrayList and add all values in it that you want to set as selected values and then just set the value in shuttle using binding



    /**Method to set selected values in af:selectManyShuttle
     * @param actionEvent
     */
    public void selectValuesShuttle(ActionEvent actionEvent) {
        DCIteratorBinding iter = (DCIteratorBinding) getBindingsCont().get("Departments1Iterator");
        ViewObject vo = iter.getViewObject();
        RowSetIterator rsi = vo.createRowSetIterator(null);
        ArrayList listVal = new ArrayList(20);

        while (rsi.hasNext()) {
            Row nextRow = rsi.next();
            if (nextRow.getAttribute("DepartmentId") != null) {
                listVal.add(nextRow.getAttribute("DepartmentId"));
            }
        }
        shuttleBind.resetValue();// Reset Shuttle Component
        System.out.println("Setting values -" + listVal);
        shuttleBind.setValue(listVal.toArray()); // Setting selected values 
        AdfFacesContext.getCurrentInstance().addPartialTarget(shuttleBind);
    }



• Now run this page and test your shuttle component







Cheers- Happy Coding

• But this method works only when you have to set values on some action or other event after page load, because before page load , binding of shuttle component will not be accessible
• So if you have a requirement of setting selected values on page load then you must use a list defined in managed bean and bind it to  value property of shuttle component, value property denotes selected values of shuttle 





• And just write same code on getter of List, in this case selected values in shuttle are populated on page load



    List pageLoad = new ArrayList(20);
    public void setPageLoad(List pageLoad) {
        this.pageLoad = pageLoad;
    }

    public List getPageLoad() {
        DCIteratorBinding iter = (DCIteratorBinding) getBindingsCont().get("Departments1Iterator");
        ViewObject vo = iter.getViewObject();
        RowSetIterator rsi = vo.createRowSetIterator(null);
        while (rsi.hasNext()) {
            Row nextRow = rsi.next();
            if (nextRow.getAttribute("DepartmentId") != null) {
                pageLoad.add(nextRow.getAttribute("DepartmentId"));
            }
        }
        return pageLoad;
    }


Cheers- Use both method as per your requirement :-) Download Sample App

Clear af:table filter programmaticallty , reset table filter in 12C (ADF)

Code to reset or clear af:table filter- here searchTabBind is the binding of af:table

    /**
     * method to reset filter attributes on an af:table
     * @param actionEvent event which triggers the method
     */
    public void resetTableFilterAction(ActionEvent actionEvent) {
        FilterableQueryDescriptor queryDescriptor = (FilterableQueryDescriptor) getSearchTabBind().getFilterModel();
        if (queryDescriptor != null && queryDescriptor.getFilterConjunctionCriterion() != null) {
            ConjunctionCriterion cc = queryDescriptor.getFilterConjunctionCriterion();
            List<Criterion> lc = cc.getCriterionList();
            for (Criterion c : lc) {
                if (c instanceof AttributeCriterion) {
                    AttributeCriterion ac = (AttributeCriterion) c;
                    ac.setValue(null);
                }
            }
            getSearchTabBind().queueEvent(new QueryEvent(getSearchTabBind(), queryDescriptor));
        }
    }

use this method on any button or link to clear af:table filter

ViewObject Validation rules for transient attributes (Model level validation in ADF)

Hello All,
this post is about model level validation for transient attributes, often we need to apply some common types of validation on transient attributes (as for negative value, for email, for phone number)
in ADF ViewObject there is a editor for validation rules for transient attributes, so now see how to use that editor and rules

• Create a fusion web application and prepare model layer using Departments table of HR schema





• Then create a transient attribute in viewObject and you can see that Validation Rules tab appears only in case of transient attribute








• Now click on add icon to add new validation rule for attribute, you can see there are multiple types for that validation rule 








• In this post i have used Compare and Regular Expression rules, suppose i have to check that value of transient attribute must not be 100 , so for that rule will be like this, and write a proper message for failure handling 








• Now run your BC4J tester and check , a window with error message appears there in case of failure





• You can also check this validation on your page, some more- i have added one more transient field for Email Address and applied a regular expression to validate this field (ADF by default provides regular expression for Email and Phone Number pattern for others you can use your own pattern)





• After model level configurations , i have dropped Departments ViewObject on page as ADF form, here you can see both validation are working 

Cheers :-) Happy Learning