Revert "BAEL-4134"

spring-caching/src/main/java/com/baeldung/springdatacaching/model/Book.java

@@ -0,0 +1,21 @@
+package com.baeldung.springdatacaching.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import java.util.UUID;
+
+@Data
+@Entity
+@NoArgsConstructor
+@AllArgsConstructor
+public class Book {
+
+    @Id
+    private UUID id;
+    private String title;
+
+}

spring-caching/src/main/java/com/baeldung/springdatacaching/repositories/BookRepository.java

@@ -0,0 +1,15 @@
+package com.baeldung.springdatacaching.repositories;
+
+import com.baeldung.springdatacaching.model.Book;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.data.repository.CrudRepository;
+
+import java.util.Optional;
+import java.util.UUID;
+
+public interface BookRepository extends CrudRepository<Book, UUID> {
+
+    @Cacheable(value = "books", unless = "#a0=='Foundation'")
+    Optional<Book> findFirstByTitle(String title);
+
+}