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Java Hibernate Basics Getting Started with Hibernate Using the Builder Pattern

Posted by lassek
lassek
8,209 Points

Quiz seems flawed

I fail to understand why I get a "Bummer" on this exercise...when I try it in IntelliJ, it builds and runs just fine. Printing out the Connection object also works fine if I do that - seems there's a flaw in this exercise?

com/teamtreehouse/builder/Connection.java 
package com.teamtreehouse.builder;

public class Connection {
  private String jdbcVendor;
  private String dbName;
  private String username;
  private String password;

  public Connection(String jdbcVendor, String dbName, String username, String password) {
    this.jdbcVendor = jdbcVendor;
    this.dbName = dbName;
    this.username = username;
    this.password = password;
  }

  public Connection(ConnectionBuilder builder) {
    this.jdbcVendor = builder.jdbcVendor;
    this.dbName = builder.dbName;
    this.username = builder.username;
    this.password = builder.password;
  }

  public static class ConnectionBuilder{
    private String jdbcVendor;
    private String dbName;
    private String username;
    private String password;

    public ConnectionBuilder(){}

    public ConnectionBuilder withJdbcVendor(String jdbcVendor) {
      this.jdbcVendor = jdbcVendor;
      return this;
    }

    public ConnectionBuilder withDb(String dbName) {
      this.dbName = dbName;
      return this;
    }

    public ConnectionBuilder withUser(String username, String password) {
      this.username = username;
      this.password = password;
      return this;
    }

    public Connection build() {
      return new Connection(this);
    }
  }
}
Application.java 
import com.teamtreehouse.builder.Connection;
import com.teamtreehouse.builder.Connection.ConnectionBuilder;

public class Application {
  public static void main(String[] args) {
    // TODO: User the builder here instead
    Connection c = new Connection.ConnectionBuilder()
      .withJdbcVendor("sqlite")
      .withDb("languages")
      .withUser("th_user","mysuperlongpassword")
      .build();
  }
}

1 Answer

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points

It says to use the builder instead. So if you remove connection:

Connection c = new ConnectionBuilder()
lassek
lassek
8,209 Points

Yes that makes it accept the answer, thanks. I was using the builder in my answer as well though, but referencing it from the Connection class. It's unnecessary since the code has already imported the builder to use directly, but I feel it should be accepted as a correct answer anyway?