}
@Override
public BooleanExpr getQuery() {
return new AndExpr(
new ComparisonExpr(new PropertyValueExpr(propertyName), new ConstantValueExpr(lower), ComparisonPredicate.Type.GREATER_OR_EQUAL),
new ComparisonExpr(new PropertyValueExpr(propertyName), new ConstantValueExpr(upper), ComparisonPredicate.Type.LESS_OR_EQUAL)
);
}