Delete BookRepositoryImpl.java

bookstore/src/main/java/com/hexagonal/repository/BookRepositoryImpl.java

@@ -1,35 +0,0 @@
-package com.hexagonal.repository;
-
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.stream.Collectors;
-
-import org.springframework.stereotype.Repository;
-
-import com.hexagonal.domain.Book;
-
-@Repository
-public class BookRepositoryImpl implements BookRepository {
-
-    private Map<String, Book> bookMap = new HashMap<>();
-
-    @Override
-    public void add(Book book) {
-        bookMap.put(book.getIsbn(), book);
-        System.out.println("Book Added " + book);
-    }
-
-    @Override
-    public Book buy(String isbn) {
-        return bookMap.get(isbn);
-    }
-
-    @Override
-    public List<Book> list() {
-        return bookMap.values()
-            .stream()
-            .collect(Collectors.toList());
-    }
-
-}