@@ -0,0 +1,537 @@
+package org.sakaiproject.entity.api;%0A%0A/**%0A * Services which implement ContentExistsAware declare that they are able to determine if they contain content for the site they are in.%0A * Note that services must also be registered EntityProducers.%0A *%0A * @since 11.0%0A * @author Steve Swinsburg (steve.swinsburg@gmail.com)%0A */%0Apublic interface ContentExistsAware %7B%0A%0A%09/**%0A%09 * Does this tool contain content in this site?%0A%09 * %0A%09 * @param siteId the siteId to use when checking if content exists%0A%09 */%0A%09public boolean hasContent(String siteId);%0A%09%0A%7D%0A

Add marker interface that tools can implement to show that they know if they have content or not