core:
import java.util.*;
import java.net.*;
import java.io.*;
import java.lang.*;

import EDU.neu.ccs.demeter.*;
add: class S extends Block implements Runnable, Cloneable {
  protected Service service;
  public Service get_service() (@ return service; @)
  public void set_service(Service new_service)
    (@ service = new_service; @)
  public constructor S() (@ super(); @)
  public constructor S(Service service) (@
    super();
    set_service(service);
  @)
  public static S parse(java.io.InputStream in) throws ParseException
    (@ return new Parser(in)._S(); @)
  public static S parse(String s) (@
    try { return parse(new java.io.ByteArrayInputStream(s.getBytes())); }
    catch (ParseException e) { throw new RuntimeException(e.toString()); }
  @)
  public void run() (@{

Visitor v= new Visitor();
RepeatCheckingVisitor rv = new RepeatCheckingVisitor();
LimitCheckingVisitor lv = new LimitCheckingVisitor();

/* in order to be a comunication between the visitors */

v.set_rv(rv);
v.set_lv(lv);
rv.set_lv(lv);
rv.set_v(v);
lv.set_v(v);

this.Traverse(rv,lv,v);

}@)
(@ boolean check(){

TimeCheckingVisitor tv = new TimeCheckingVisitor();
this.TimeTraverse(tv);

/* depending on what value is returned the interpretation is made or not */

return tv.get_return_val();
}@)
(@  void universal_trv0_bef(UniversalVisitor _v_) {
    super.universal_trv0_bef(_v_);
    _v_.before(this);
  }
@)
(@  void universal_trv0_aft(UniversalVisitor _v_) {
    _v_.after(this);
    super.universal_trv0_aft(_v_);
  }
@)
(@  void universal_trv0(UniversalVisitor _v_) {
    universal_trv0_bef(_v_);
    _v_.before_service(this, service);
    service.universal_trv0(_v_);
    _v_.after_service(this, service);
    super.universal_trv0(_v_);
    universal_trv0_aft(_v_);
  }
@)
(@  public void Traverse(RepeatCheckingVisitor rv, LimitCheckingVisitor lv, Visitor v) {
    Traverse_S_trv(rv, lv, v);
  }
@)
(@  void Traverse_S_trv_bef(RepeatCheckingVisitor rv, LimitCheckingVisitor lv, Visitor v) {
    super.Traverse_S_trv_bef(rv, lv, v);
  }
@)
(@  void Traverse_S_trv_aft(RepeatCheckingVisitor rv, LimitCheckingVisitor lv, Visitor v) {
    super.Traverse_S_trv_aft(rv, lv, v);
  }
@)
(@  void Traverse_S_trv(RepeatCheckingVisitor rv, LimitCheckingVisitor lv, Visitor v) {
    Traverse_S_trv_bef(rv, lv, v);
    service.Traverse_S_trv(rv, lv, v);
    Traverse_S_trv_aft(rv, lv, v);
  }
@)
(@  public void TimeTraverse(TimeCheckingVisitor tv) {
    TimeTraverse_S_trv(tv);
  }
@)
(@  void TimeTraverse_S_trv_bef(TimeCheckingVisitor tv) {
    super.TimeTraverse_S_trv_bef(tv);
  }
@)
(@  void TimeTraverse_S_trv_aft(TimeCheckingVisitor tv) {
    super.TimeTraverse_S_trv_aft(tv);
  }
@)
(@  void TimeTraverse_S_trv(TimeCheckingVisitor tv) {
    TimeTraverse_S_trv_bef(tv);
    service.TimeTraverse_S_trv(tv);
    TimeTraverse_S_trv_aft(tv);
  }
@)
}