visit( descr.getInput() );
}
tmpstr += this.template;
if ( descr.isExternalFunction() ) {
AccumulateFunctionCallDescr func = descr.getFunctions().get( 0 );
tmpstr += "<external-function evaluator=\"" + func.getFunction() + "\" expression=\"" + func.getParams()[0] + "\"/>";
} else tmpstr += "<init>" + descr.getInitCode() + "</init><action>" + descr.getActionCode() + "</action><result>" + descr.getResultCode() + "</result>";
this.template = tmpstr + " </accumulate> </from> ";
}