import java.lang.*;
import java.io.*;
import java.util.*;
import EDU.neu.ccs.demeter.*;
 abstract class Service {
  public Service() {
    super();
    }
    void universal_trv0_bef(UniversalVisitor _v_) {
    _v_.before(this);
  }

    void universal_trv0_aft(UniversalVisitor _v_) {
    _v_.after(this);
  }

    void universal_trv0(UniversalVisitor _v_) {  }

    void all_WebScript_trv_bef(UniversalVisitor __v0) {
    __v0.before(this);
  }

    void all_WebScript_trv_aft(UniversalVisitor __v0) {
    __v0.after(this);
  }

    void all_WebScript_trv(UniversalVisitor __v0) {  }

	  // the abstract method to execute a particular service
	  // which every service needs to override.
	  public abstract boolean executeService(PrintStream out);
	  
}