com.example.restapi.service.BookService Class Reference

Public Member Functions
List< Book >	getAllBooks ()
Optional< Book >	getBookById (Long id)
Book	createBook (Book book)
Book	updateBook (Long id, Book bookDetails) throws Exception
void	deleteBook (Long id)
boolean	borrowBook (Long bookId, Long userId)
boolean	returnBook (Long bookId)

Detailed Description

Service class that provides business logic for managing Book and borrowing operations.

Definition at line 16 of file BookService.java.

Member Function Documentation

borrowBook()

boolean com.example.restapi.service.BookService.borrowBook	(	Long	bookId,
		Long	userId )

Definition at line 80 of file BookService.java.

createBook()

Book com.example.restapi.service.BookService.createBook

(

Book

book

)

Creates a new book entry in the repository.

Parameters

book	the Book object to be created

Returns

the created Book object

Definition at line 50 of file BookService.java.

deleteBook()

void com.example.restapi.service.BookService.deleteBook

(

Long

id

)

Deletes the Book identified by id. deleteBook() needs to be public because it is used by clients who wish to remove books identified by id

Definition at line 76 of file BookService.java.

getAllBooks()

List< Book > com.example.restapi.service.BookService.getAllBooks

(

)

Retrieves all books from the repository.

Returns

a list of all Book objects

Definition at line 30 of file BookService.java.

getBookById()

Optional< Book > com.example.restapi.service.BookService.getBookById

(

Long

id

)

Retrieves a book by its unique identifier.

Parameters

id	the ID of the book to retrieve

Returns

an Optional containing the found Book, or empty if not found

Definition at line 40 of file BookService.java.

returnBook()

boolean com.example.restapi.service.BookService.returnBook

(

Long

bookId

)

Returns a borrowed book, making it available for others.

Parameters

bookId

the ID of the book to return

Returns

true if the return was successful, false otherwise

Definition at line 100 of file BookService.java.

updateBook()

Book com.example.restapi.service.BookService.updateBook	(	Long	id,
		Book	bookDetails ) throws Exception

Updates an existing book's details.

Parameters

id	the ID of the book to update
bookDetails	the updated Book details

Returns

the updated Book object

Exceptions

Exception

if the book with the specified ID is not found

Definition at line 63 of file BookService.java.

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The documentation for this class was generated from the following file:

• src/main/java/com/example/restapi/service/BookService.java