Child1.java

public interface Child1 extends ValueProxy {

  String getValue();

  void setValue(String value);

  Long getId();

  void setId(Long id);
}

Child2.java

public interface Child2 extends ValueProxy {

  DeviceTypeProxy getType();

  void setType(DeviceTypeProxy type);

  void setMinCount(Integer minCount);

  Integer getMinCount();

  void setMaxCount(Integer maxCount);

  Integer getMaxCount();

  MoneyProxy getRent();

  void setRent(MoneyProxy rent);

}

MyMainValueProxy.java

public interface MyMainValueProxy extends ValueProxy {
  public Long getId();

  public String getName();

  void setName(String name);

  List<Child1> getTypes();

  MoneyProxy getMonthlyTax();

  List<Child2> getChild2();

  void setChild2(List<Child2> deviceTypeSpecifications);

  Boolean isNegotiableMonthTax();

  void setNegotiableMonthTax(Boolean isNegotiableMonthTax);
}