Get Selected records (Child/Parent) from POJO based ADF treeTable

Hello All
Previously I have posted about creating af:treeTable programmatically using POJO and this the next post in series

In this post I am talking about a very common requirement while using POJO based treeTable
How can we get selected records (child/parent) from POJO based treeTable ?

For this post I am extending same sample application, Till now we have seen that how can we create POJO based treeTable
Now we'll see that how to get it's selected records

Set values in af:selectManyChoice programmatically - Oracle ADF

This post is about a very common question
How to set selected values in af:selectManyChoice component ?
Sometimes we need to set some values in selectManyChoice component on some action

In this post i am using Departments table of HR Schema to create selectManyChoice (Multiple Selection)
Just drag and drop Departments viewObject as ADF Select Many Choice
see- Using Multiple Selection (selectManyListbox & selectManyCheckbox component) in ADF

(Jdev Version- 12.1.3)
dropped a button on page and on this button action ,  setting values in component
See this simple managed bean code -

import java.util.ArrayList;

import javax.faces.event.ActionEvent;

import oracle.adf.view.rich.component.rich.input.RichSelectManyChoice;
import oracle.adf.view.rich.context.AdfFacesContext;

public class SetValueSmcBean {
    private RichSelectManyChoice selectMcBind;

    public SetValueSmcBean() {
    }

    /**Methos to set selected values in SelectManyChoice
     * @param actionEvent
     */
    public void setSelectedValuesAction(ActionEvent actionEvent) {
        ArrayList listVal = new ArrayList(20);
        //Add DepartmentId to list that you want to set as selected
        listVal.add(101);
        listVal.add(102);
        // Set this List as value using component binding
        selectMcBind.setValue(listVal.toArray());
        //Refresh Component on page (partial target)
        AdfFacesContext.getCurrentInstance().addPartialTarget(selectMcBind);
    }

    public void setSelectMcBind(RichSelectManyChoice selectMcBind) {
        this.selectMcBind = selectMcBind;
    }

    public RichSelectManyChoice getSelectMcBind() {
        return selectMcBind;
    }
}

run application and check-

Downoad Sample Application
Thanks , Happy Learning :)

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) {
            this.setvalueToExpression("#{row.bindings.DeptIdTrans.inputValue}",
                                      vce.getNewValue()); //Updating Model Values
            Integer selectedCode =
                Integer.parseInt(this.getValueFrmExpression("#{row.bindings.DeptIdTrans.attributeValue}").toString());

            System.out.println("******** Selected Value in List***** " + selectedCode);
            System.out.println("*******Display Value in List ****" +
                               getValueFrmExpression("#{row.bindings.DeptIdTrans.selectedValue.attributeValues[1]}"));

        }
    }



• 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

Reference-https://blogs.oracle.com/shay/entry/getting_the_value_from_a_selec

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 Selected Values of shuttle component (Reset shuttle) programmatically-Oracle ADF

Hello All ,
you have heard about shuttle component in ADF,  it works for multiple selection
to use it -refer my previous blog post
Shuttle Component in Oracle ADF (Allow Multiple Selection)

Sometimes we need to reset shuttle (clear selected values) through our code (managed bean)
so in this post I'm going to explain how to do this with simple piece of code

• I have created a simple jspx page and placed Departments (HR Schema) view-object on this page as an af:selectManyShuttle
  
• Created managed bean for a link to clear selected indices of shuttle, see code





    public BindingContainer getBindings() {
        return BindingContext.getCurrent().getCurrentBindingsEntry();
    }

    /**Method to Clear selected value of shuttle (Reset Shuttle)
     * @param actionEvent
     */
    public void resetShuttleAction(ActionEvent actionEvent) {
        BindingContainer bc = this.getBindings();
        JUCtrlListBinding listBindings = (JUCtrlListBinding)bc.get("DepartmentsView1");
        listBindings.clearSelectedIndices();

    }



• Now see how it works- when user click on this link ,it will clear all selected indices of shuttle