重构get请求代码---PartyLocation

将原理在PersonDto中定义的partyLocations，剪切到PartyDto中去。

   @JsonApiToMany
    private List<PartyLocationDto> partyLocations;

重构PersonConverter中的updateDto方法，

@Overridepublic void updateDto(Person entity, PersonDto dto) {    Locale l = currentUserProvider.get().getLocale();    partyConverter.updateDto(entity, dto);    dto.setPronunciation(entity.getPronunciation());    ....}

PartyConverter代码重构如下：

public class PartyConverter implements Converter<Party, PartyDto> {
    @Inject
    private ApiContext apiContext;

    @Override
    public void updateDto(Party party, PartyDto partyDto){
        partyDto.setId(party.getId());
        partyDto.setName(party.getName());
        partyDto.setSpecificResourceType(new ResourceDto(apiContext.getResourceType(party), partyDto.getId()));
        setPartyLocations(party, partyDto);
    }

    @Override
    public void updateEntity(PartyDto dto, Party entity) {
//        System.out.println("--");
        PersonEntity personEntity = (PersonEntity)entity;
    }

    public void setPartyLocations(Party party, PartyDto partyDto){
        List<PartyLocationDto> partyLocationDtoList = new ArrayList<PartyLocationDto>();
        if(Objects.isNull(party.getPartyLocations())){
            return ;
        }
        for(PartyLocation partyLocation:party.getPartyLocations()){
            PartyLocationDto partyLocationDto = new PartyLocationDto(partyLocation.getId());
            partyLocationDtoList.add(partyLocationDto);
        }
        partyDto.setPartyLocations(partyLocationDtoList);
    }
}

修改relationship:注意，传递的参数是PersonDto，如果是PartyDto，则会报错relationship出错，思考为什么。

@Singleton
public class PersonToPartyLocationRelationship extends AbstractEntityToPartyLocationRelationship<PersonDto> {

}

public abstract class AbstractEntityToPartyLocationRelationship<S extends AbstractKatharsisDto>
        extends AbstractRelationshipRepository<S, PartyLocationDto> {

    @Override
    public List<PartyLocation> getTargetEntities(Object source, String fieldName, QueryParamsHelper helper) {
        Party sourceEntity = cast(source);
        List<PartyLocation> partyLocations = new ArrayList<PartyLocation>();
        if(!Objects.isNull(sourceEntity.getPartyLocations())){
            partyLocations.addAll(sourceEntity.getPartyLocations());
        }
        return partyLocations;

    }

    @Override
    public void addRelations(S source, Iterable<String> targetIds, String fieldName) {
    }

}

再次编译，则可以get请求成功。同时，post请求也是ok的。

补充：何时调用relationship，这是kathasis内部自己定义的，与类名是没有关系的，主要是和传递的泛型参数有很大的关系。--------感谢andrew指导分析这个知识点。