How to apply style/styleclass by calling getStyle() or getstyleclass()

Hi The source code for many renderer classes say that style of button etc, can be overriden by overriding getStyle method.
I wanted to know how to do that. I was thinking it should be setStyle method and not get method?
Thanks
Raghu
/**

• Can be overwritten by derived classes to overrule the style to be used.

*/

protected String getStyle(FacesContext facesContext, UIComponent link) {

if (link instanceof HtmlCommandLink)

{ return ((HtmlCommandLink) link).getStyle(); }

else

{ return (String) link.getAttributes().get(HTML.STYLE_ATTR); }

}

/**

• Can be overwritten by derived classes to overrule the style class to be used.

*/

protected String getStyleClass(FacesContext facesContext, UIComponent link) {

if (link instanceof HtmlCommandLink)

{ return ((HtmlCommandLink) link).getStyleClass(); }

else

{ return (String) link.getAttributes().get(HTML.STYLE_CLASS_ATTR); }

}