<t:progressiveDisplay />
<t:block id="testBlock">
	this is progressive display !
</t:block>
	

		
public class DocsProgressiveDisplay
{
	@Inject
	private Block testBlock;
	
	@OnEvent(EventConstants.PROGRESSIVE_DISPLAY)
	public Object returnBlock() throws InterruptedException{
		Thread.sleep(2000);
		return testBlock;
	}
}