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Java Spring with Hibernate Data-Driven Application Design Add a service for Contact objects

Hannah Lee
Hannah Lee
80,187 Points
Posted by Hannah Lee
Hannah Lee
80,187 Points

Add a service interface and implementing class in their respective files. Include a findById method that accepts a Long

I'm stuck in this session...please help me...

com/teamtreehouse/contactmgr/service/ContactService.java 
package com.teamtreehouse.contactmgr.service;

import com.teamtreehouse.contactmgr.model.Contact;
com/teamtreehouse/contactmgr/service/ContactServiceImpl.java 
package com.teamtreehouse.contactmgr.service;

import com.teamtreehouse.contactmgr.dao.ContactDao;
import com.teamtreehouse.contactmgr.model.Contact;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;


@Service
private CategoryService category Service{

    @Override
        public interface Category{
        Category findByID(Long id);
    return null;
        }
}

1 Answer

Brendan Whiting
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Brendan Whiting
Front End Web Development Techdegree Graduate 84,738 Points
Brendan Whiting
.a{fill-rule:evenodd;}techdegree seal-36
Brendan Whiting
Front End Web Development Techdegree Graduate 84,738 Points

The “Preview” button will let you see the compiler errors. Here’s the first error I get when I ran your code: 

com.github.javaparser.ParseException: Encountered "  "CategoryService "" at line 10, column 9.
Was expecting one of:
    "class" ...
    "enum" ...
    "interface" ...

This is what we have on line 10 of ContactServiceImpl.java

private CategoryService category Service {

So it’s seeing CategoryService and was expecting some other keyword like class, enum, interface. In this case, I think it should be class. What we want to do here is define an interface in ContactService.java and a class that implements that interface in ContactServiceImpl.java

The best video for you to reference for this is a couple steps back here.

Let me know if you have more questions.