public void applyMetadata(FaceletContext ctx, Object instance) {
LOG.error("TODO: implementation for JSF 1.2 / JSF 2.0");
((SheetStateChangeSource) instance)
// XXX
.setStateChangeListener(new MethodExpressionToMethodBinding(attribute
.getMethodExpression(ctx, null,
SheetStateChangeSourceRule.ACTION_LISTENER)));
}