Programmatically populate values in a af:selectOneChoice component in ADF

In this tutorial you will see that how to populate selectOneChoice list from managed bean, sometimes we need to use custom list that are not model driven, this scenario can be implemented there

follow steps -

• First of all create a fusion web application and a page in it
• Now create a variable of type java.util.List in managed bean, and generate its accessors



    List<SelectItem> customList;

    public void setCustomList(List<SelectItem> customList) {
        this.customList = customList;
    }

    public List<SelectItem> getCustomList() {
        return customList;
    }



• this list contains value of type javax.faces.model.SelectItem; that is supported by af:selectOneChoice
• now time to add values in list, so to add values in this list i have written this code in getter of variable



    public List<SelectItem> getCustomList() {
        if (customList == null) {
            customList = new ArrayList<SelectItem>();
            customList.add(new SelectItem("i1","Item 1"));
            customList.add(new SelectItem("i2","Item 2"));
            customList.add(new SelectItem("i3","Item 3"));
            customList.add(new SelectItem("i3","Item 4"));
            customList.add(new SelectItem("i5","Item 5"));
    }
        return customList;
    }



• Managed bean part is done, now add this to view layer




• Drop choice list in page from component palette

•  Now bind choice list to bean List

• See the page source after whole setup-



<?xml version='1.0' encoding='UTF-8'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1" xmlns:f="http://java.sun.com/jsf/core"
          xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
    <jsp:directive.page contentType="text/html;charset=UTF-8"/>
    <f:view>
        <af:document title="listPage.jspx" id="d1">
            <af:form id="f1">
                <af:panelGroupLayout id="pgl1" layout="vertical" halign="center">
                    <af:spacer width="10" height="10" id="s1"/>
                    <af:selectOneChoice label="Custom List" id="soc1" contentStyle="font-weight:bold;color:darkgreen;">
                        <f:selectItems value="#{ListPolulatebean.customList}" id="si1"/>
                    </af:selectOneChoice>
                </af:panelGroupLayout>
            </af:form>
        </af:document>
    </f:view>
</jsp:root>



• Run this page and see programmatic choice list-

Creating pdf file using Apache PDFBox API in ADF Faces and opening it in new window -Oracle ADF

Apache PDFBox library is an open source java tool for working with PDF documents, go to http://pdfbox.apache.org/ for API docs and download jar (pdfbox-app-1.8.2) from there.

•  Now create a fusion web application and add jar to view controller project's library and class-path

•  To convert text to pdf format, i have used an input text and bind it to bean (to get value)

•  Now see the button code that converts text to pdf file format using Apache PDFBox



        PDDocument document = new PDDocument();
        PDPage page = new PDPage();
        document.addPage(page);

        // Create a new font object selecting one of the PDF base fonts
        PDFont font = getFontDef();

        // Start a new content stream which will "hold" the to be created content
        PDPageContentStream contentStream = new PDPageContentStream(document, page);

        // Define a text content stream using the selected font, moving the cursor and drawing the text "Hello World"

        contentStream.beginText();
        contentStream.setFont(font, 10);
        contentStream.moveTextPositionByAmount(50, 700);
        contentStream.drawString(textToConvert.getValue().toString());
        contentStream.endText();

        // Make sure that the content stream is closed:
        contentStream.close();

        // Save the results and ensure that the document is properly closed:
        try {
            document.save("D:/Test_pdf.pdf");
        } catch (COSVisitorException e) {
        }
        document.close();



• now your pdf is generated in fixed path, and if user want to open it immediately , try to do this





        if ((new File("D:\\Hello World.pdf")).exists()) {

            Process p = Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler D:\\Hello World.pdf");
            p.waitFor();

        } else {

            System.out.println("File is not exists");

        }



• this code invokes File Protocol using Runtime class
• Run this application and see-

 Click on generate button-

For more details and functionality visit Apache PDFBox site

Sample ADF Application-Download

Creating dynamic layout (form and UI Component) using ADF Faces

hello all,
today i had a scenario to create UI Components at run time and i tried to do that on my ADF page.
searched lot in Google and finally all summary is in post.

Suppose you have to create UI Components (input text, buttons, check-boxes etc ) or form (set of multiple UI Components) at runtime - follow these steps

• Find a parent component to create child under it as any layout (panel form, panel group, af:form etc)
• Suppose you have a page with a panel form layout, now you have to create child components in this form layout at runtime
• Bind this form layout to managed bean



<af:panelFormLayout id="pfl1" rows="2" binding="#{DynamicCompBean.panelFormLay}"/>



• Now thanks to Mahmoud A. Elsayed for this method, that adds child component to parent component



    public void addComponent(UIComponent parentUIComponent, UIComponent childUIComponent) {
        parentUIComponent.getChildren().add(childUIComponent);
        AdfFacesContext.getCurrentInstance().addPartialTarget(parentUIComponent);
    }



• you can call this method , wherever you want to create UI Component and add it to page .




• Now i have created a button on page and a radio box to select which component should be created
  

• Now on button click , i have generated components conditionally based on selection
• To generate any component - see managed bean code to create input text



            RichInputText ui = new RichInputText();
            ui.setId("rit1");
            ui.setLabel("Input text");
            ui.setValue("Hello ADF");
            ui.setContentStyle("font-weight:bold;color:red");



• same as this ,for other component i have written code and set their properties in managed bean
• look at managed bean code-



package dynamic.view.bean;

import java.io.Serializable;

import javax.faces.component.UIComponent;
import javax.faces.event.ActionEvent;

import oracle.adf.view.rich.component.rich.RichForm;
import oracle.adf.view.rich.component.rich.input.RichInputText;
import oracle.adf.view.rich.component.rich.input.RichSelectBooleanCheckbox;
import oracle.adf.view.rich.component.rich.input.RichSelectOneRadio;
import oracle.adf.view.rich.component.rich.layout.RichPanelFormLayout;
import oracle.adf.view.rich.component.rich.nav.RichCommandButton;
import oracle.adf.view.rich.component.rich.output.RichOutputText;
import oracle.adf.view.rich.context.AdfFacesContext;

public class DynamicCompBean implements Serializable {

    /**Parent component to add childs in it*/
    private RichPanelFormLayout panelFormLay;

    /**Binding to select which component should be created*/
    private RichSelectOneRadio compTypeBind;

    public DynamicCompBean() {
    }

    /**Method to add child to parent component*/
    public void addComponent(UIComponent parentUIComponent, UIComponent childUIComponent) {
        parentUIComponent.getChildren().add(childUIComponent);
        AdfFacesContext.getCurrentInstance().addPartialTarget(parentUIComponent);
    }

    /**Button code to generate and add components conditionally*/
    public void createComptext(ActionEvent actionEvent) {

        if (compTypeBind.getValue().toString().equalsIgnoreCase("I")) {
            RichInputText ui = new RichInputText();
            ui.setId("rit1");
            ui.setLabel("Input text");
            ui.setValue("Hello ADF");
            ui.setContentStyle("font-weight:bold;color:red");
            addComponent(getPanelFormLay(), ui);
        } else if (compTypeBind.getValue().toString().equalsIgnoreCase("O")) {
            RichOutputText ui = new RichOutputText();
            ui.setId("rot1");
            ui.setValue("I am output text");
            ui.setInlineStyle("font-weight:bold;color:green");
            addComponent(getPanelFormLay(), ui);
        } else if (compTypeBind.getValue().toString().equalsIgnoreCase("C")) {
            RichSelectBooleanCheckbox ui = new RichSelectBooleanCheckbox();
            ui.setId("ch1");
            ui.setValue(true);
            ui.setLabel("CheckBox");
            addComponent(getPanelFormLay(), ui);
        } else if (compTypeBind.getValue().toString().equalsIgnoreCase("B")) {
            RichCommandButton ui = new RichCommandButton();
            ui.setId("ch1");
            ui.setText("Button");
            ui.setInlineStyle("font-weight:bold;");
            addComponent(getPanelFormLay(), ui);
        }

    }


    public void setPanelFormLay(RichPanelFormLayout panelFormLay) {
        this.panelFormLay = panelFormLay;
    }

    public RichPanelFormLayout getPanelFormLay() {
        return panelFormLay;
    }

    public void setCompTypeBind(RichSelectOneRadio compTypeBind) {
        this.compTypeBind = compTypeBind;
    }

    public RichSelectOneRadio getCompTypeBind() {
        return compTypeBind;
    }
}



• Now run this application and select input text to create-

• Select others also and create a form

• You can create complex forms using this

         Download Sample workspace-Download Sample