Rendering of UIDataTable subclass

[maeste]

I have some trouble with the rendering of a data table. To change the default behavior of UIDataTable I subclassed it. Here is the code of the subclass:

public class CustomDataTable extends UIDataTable {
 public static final String COMPONENT_TYPE = "it.lince.lego.seam.ui.CustomDataTableComponent";
 private Log log = Logging.getLog(this.getClass());
 public String getFamily() {
 return super.getFamily();
 }
 public void encodeBegin(FacesContext context) throws java.io.IOException {
 super.encodeBegin(context);
 if (this.getFirst() > this.getRowCount()) {
 this.setFirst(0);
 }
 }
}

I used this component in my view and it behaves like expected, but the generated markup is differend from what I expect it should be. Note that the used skin is set to "classic".

So, insted of

<table id="UserDB:historicalUserDBItems" class="dr-table rich-table" width="700" rules="all" cellspacing="0" cellpadding="0" border="0" style="border: 1px solid rgb(217, 217, 217);">
<colgroup span="6">
 ...
</colgroup>
<thead>
 ...
</thead>
<tbody>
 ...
</tbody>
</table>

I got

<table width="700" rules="all" cellspacing="0" cellpadding="0" style="border: 1px solid rgb(217, 217, 217);" id="UserDB:historicalUserDBItems">
<thead>
 ...
</thead>
<tbody>
 ...
</tbody>
</table>

I suspect that the used skin for CustomDataTable is different from "classic". Am I right? There is any way to set the right skin to render my custom component? Any other suggestions?

Thans in advance.