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Showing posts with label display Value. Show all posts
Showing posts with label display Value. Show all posts

Thursday 21 April 2016

ADF Basics: Get display and base value of POJO based SelectOneChoice

Previously I have posted about populating selectOneChoice programmatically using POJO

and this post is about getting selected value of POJO base selectOneChoice (both display value and base value)

Monday 12 May 2014

Getting selected value (not index) & display value of select one choice programmatically in ADF

Hello All,
This post is about a common requirement of getting selected value & display value of af:selectOneChoice in managed bean
normally when we try to get selected value of  selectOneChoice in managed bean (in ValueChange/ Validator or using binding) it returns index of that row
so there is a little piece of code using that we can get selected value of choice component

  • I have used Departments table of HR Schema in sample and created a lov on a transient field

  • Now dropped that ViewObject on page as a table 

  • Created a value change listener in managed bean fro DeptIdTrans but it return index of selected value

  • Then i googled about it and used this method to solve my headache, try to get attributeValue instead of inputValue, see the code written in valueChaneListener in managed bean

  •     /**Value Change Listener of DeptIdTrans (to get selected and display value)
         * @param vce
        public void deptIdVCE(ValueChangeEvent vce) {
            System.out.println("New Value is-" + vce.getNewValue());
            if (vce.getNewValue() != null) {
                                          vce.getNewValue()); //Updating Model Values
                Integer selectedCode =
                System.out.println("******** Selected Value in List***** " + selectedCode);
                System.out.println("*******Display Value in List ****" +

  • There is two methods to set and get value in expression (EL)

  •     /**Method to set value in Expression (EL)
         * @param el
         * @param val
        public void setvalueToExpression(String el, Object val) {
            FacesContext facesContext = FacesContext.getCurrentInstance();
            ELContext elContext = facesContext.getELContext();
            ExpressionFactory expressionFactory = facesContext.getApplication().getExpressionFactory();
            ValueExpression exp = expressionFactory.createValueExpression(elContext, el, Object.class);
            exp.setValue(elContext, val);
        /**Method to get value from Expression (EL)
         * @param data
         * @return
        public String getValueFrmExpression(String data) {
            FacesContext fc = FacesContext.getCurrentInstance();
            Application app = fc.getApplication();
            ExpressionFactory elFactory = app.getExpressionFactory();
            ELContext elContext = fc.getELContext();
            ValueExpression valueExp = elFactory.createValueExpression(elContext, data, Object.class);
            String Message = null;
            Object obj = valueExp.getValue(elContext);
            if (obj != null) {
                Message = obj.toString();
            return Message;

  • Again run page and select any value in selectOneChoice (lov) and see the result

Cheers :-) Happy Learning