BookService.java

package com.github.ggeorgovassilis.springjsonmapper.services;

/**
 * Functional interface for a book retrieval service. There is no annotation mappings on purpose; instead, each implementation
 * will extend this interface and overwrite methods with implementation-specific annotations
 * 
 * @author george georgovassilis
 *
 */
public interface BookService {

    QueryResult findBooksByTitle(String q);
    
    Item findBookById(String id);
    
}