if (sortExpression != null) {
de.innovationgate.wgpublisher.expressions.ExpressionEngine engine = null;
if (this.getSortlanguage() != null) {
engine = de.innovationgate.wgpublisher.expressions.ExpressionEngineFactory.getEngine(this.getSortlanguage());
}
comparator = new ExpressionComparator(this, engine, sortExpression, collator);
}
// Sort by item
String sortItem = getSortitem();
if (sortItem != null) {