extendedDataTable groupingColumn

[ddg]

Hello,

By default, extendedDataTable groups are expanded when using a groupingColumn.

Is there a way to have groups rendered collapsed instead?

(Example of my usage below.)

Thanks!

--ddg

...

<rich:extendedDataTable value="#{reservationCart.avbGear}" id="availableGear" var="gear"
                                                    width="650px" groupingColumn="styleSummary" enableContextMenu="false" selectionMode="none">

...

<rich:column sortBy="#{gear.storeSku.sku.style.summary}" width="100px" label="Style" id="styleSummary" visible="false">
                                    <f:facet name="header">
                                        <h:outputText value="Style" />
                                    </f:facet>
                                    <h:outputText value="#{gear.storeSku.sku.style.summary}" />
                                </rich:column>

...

[ilya_shaikovsky]

no unfortunatelly this feature is not reviewed and improved for such customization and works as it was contributed.

[langer123]

Hi

My first post on the site! Relatively new to Richfaces.

I was wondering is there any way to extend the extendedDataTable base class to implement this feature?

It's actually a vital requirement of a feature I need to implement.

Thanks

[nbelaevski]

Hi Thomas,

Try overriding this method: org.richfaces.component.UIExtendedDataTable.groupIsExpanded(int) or this: org.richfaces.component.UIExtendedDataTable.getState()

[langer123]

Thanks Nick.

Now to a more fundamental question

As I stated in my previous post, I'm new to JSF and Richfaces.

Would you be able to provide an example of an to override a component method (All steps and files required)?

Maybe for some simple component method you have done this on? (Doesnt have to be the extendedDataTable).

I cant seem to find any end-to-end simple example that shows how to overide an existing Richfaces component.

Appreciate your help.

[langer123]

I've been trying to figure out how to do this and have the following so far:

I've created a custom ExtendedDataTableRenderer renderer as follows:

package com.test;

import java.io.IOException;

import javax.faces.component.UIComponent;

import javax.faces.context.FacesContext;

import org.richfaces.renderkit.html.ExtendedDataTableRenderer;

public class HtmlExtendedDataTableRendered extends ExtendedDataTableRenderer

{

          @Override

          public void encodeBegin(FacesContext context, UIComponent component) throws IOException

          {

                    System.out.println("------- in HtmlExtendedDataTableRendered init() -----");

                    // TODO Auto-generated method stub

                    super.encodeBegin(context, component);

          }

}

And added the following to my faces-config.xml as follows:

<render-kit>

     <renderer>

          <component-family>org.richfaces.ExtendedDataTable</component-family>

          <renderer-type>org.richfaces.ExtendedDataTableRenderer</renderer-type>

          <renderer-class>com.test.HtmlExtendedDataTableRendered</renderer-class>

     </renderer>

</render-kit>

When I hit a page that has an entendedDataTable component this seems to be working (It is prining the test code to the console).

Now I also extended the HtmlExtendedDataTable class as follows:

package com.test;

import java.io.IOException;

import javax.faces.context.FacesContext;

import org.richfaces.component.html.HtmlExtendedDataTable;

public class customExtendedDataTable extends HtmlExtendedDataTable {

    /*

     * The renderer type for this component.

    */

    public static final String RENDERER_TYPE = "com.test.HtmlExtendedDataTableRendered";

    public customExtendedDataTable() {

         System.out.println("------- in customExtendedDataTable init() -----");

         setRendererType(RENDERER_TYPE);

    }

   @Override

    public String getFamily() {

        return customExtendedDataTable.RENDERER_TYPE;

    }

   @Override

   public boolean groupIsExpanded(int index)

   {

        System.out.println("------- in groupIsExpanded -----");

        // TODO Auto-generated method stub

        return super.groupIsExpanded(1);

   }

   @Override

   public void encodeBegin(FacesContext context) throws IOException

   {

        System.out.println("------- in encodeBegin -----");

        // TODO Auto-generated method stub

        super.encodeBegin(context);

   }

}

Nothing is been printed to the console from within this class when I enter a page that has the extendedDataTable component.

Could you provide me with some help as to why this is not working please?

Thanks