XML download in JDeveloper 11G

Making a download or an export was never so easy as in JDeveloper 11g just follow these steps and you have own a xml export file of a rich table or any viewobject used in the page definition. For this blog entry I will use ADF BC which supports writexml and the fileDownloadActionListener jsf component which handles the download of the file.

first we drag a new toolbar button to the panel collection of a rich table.

drag the file download action listener from the component palette to the new toolbar button

In the property window of this af:fileDownloadActionListener component we can fill in some values for the content type and filename properties.
Select the edit menu item of the method property so we create an new backing bean.

Press the New button to create a new backing bean

Now we can create a new method in this bean.

and here is method code and we are finished

package nl.ordina.richtable.view.beans;

import java.io.IOException;
import java.io.OutputStream;

import java.util.List;
import javax.faces.context.FacesContext;
import nl.ordina.richtable.model.dataaccess.EmployeesViewImpl;
import oracle.adf.model.BindingContext;
import oracle.adfinternal.view.faces.model.binding.FacesCtrlHierBinding;
import oracle.binding.BindingContainer;
import oracle.jbo.XMLInterface;
import oracle.xml.parser.v2.XMLNode;

public class ExportBean {
    public ExportBean() {
    }
    public void exportXml(FacesContext facesContext,
                          OutputStream outputStream) {
        // Add event code here...
        BindingContainer bc = BindingContext.getCurrent().getCurrentBindingsEntry();

        List controlBindings    = bc.getControlBindings();
        FacesCtrlHierBinding hierBinding = (FacesCtrlHierBinding) bc.getControlBinding("EmployeesView");
        EmployeesViewImpl employees = (EmployeesViewImpl) hierBinding.getViewObject();
        try {
            ((XMLNode)(employees.writeXML(-1,XMLInterface.XML_OPT_ALL_ROWS))).print(outputStream);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

That's all.