sp;collectDelta(<a href="../../../../../org/apache/solr/handler/dataimport/EntityProcessorWrapper.html" title="class in org.apache.solr.handler.dataimport">EntityProcessorWrapper</a>&nbsp;epw,
                                   <a href="../../../../../org/apache/solr/handler/dataimport/VariableResolver.html" title="class in org.apache.solr.handler.dataimport">VariableResolver</a>&nbsp;resolver,
                                   <a href="http://download.oracle.com/javase/7/docs/api/java/util/Set.html?is-ext