public static Restriction le(String name, Object value){
        return new Restriction(Operator.LESS_OR_EQUALS_THAN, name, value);
    }
public static Restriction le(String name, Object value){
        return new Restriction(Operator.LESS_OR_EQUALS_THAN, name, value);
    }
public static Restriction le ( String name , Object value ) { return new Restriction ( Operator . LESS_OR_EQUALS_THAN , name , value ) ; }
'<=' less or equals than operator
< = less or equals than operator