The Java RIA Framework

Hi Marc,
It should be pretty straightforward without using JasperReports (keep it for actual reporting). Jspresso comes with a built-in sava action that allows you to export the data to whatever format you need.
All you have to do is implement a callback that will be passed an output stream as parameter and write to it.

Here we go :

• First of all, implement the callback, e.g. :

public class MyXmlExportCallback implements IFileSaveCallback {

  public void cancel(IActionHandler actionHandler,
      Map<String, Object> context) {
    //Do whatever you want when the file download is canceled.
  }

  public void fileChosen(OutputStream out,
      IActionHandler actionHandler,
      Map<String, Object> context) {
    // Use the action context to explore the model
    // and write data to the output stream. In your case
    // I would use an outputstream writer to take care of the XML text
    // encoding. As of now, you have to flush and close here.
    // This might not be necessary in the future.
  }
}

• Then simply register a new save action in your frontend, e.g. :

<bean
  parent="saveFileAction">
  <property
    name="fileFilter">
    <map>
    <entry
      key="xml"> <!-- xml will be translated using the resource bundles -->
      <list>
      <value>.xml</value>
      </list>
    </entry>
    </map>
  </property>
  <property
    name="defaultFileName"
    value="export.xml" />
  <property
    name="fileSaveCallback">
    <bean
    class="my.package.MyXmlExportCallback" />
  </property>
</bean>

The action will prompt the user for choosing a file to save to (same as saving a binary property value). Feel free to change the icon, description, and so on.

HTH,
Vincent