gaspersic/java-design-patterns
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

#1284 Use local variable inference

Browse Source
This commit is contained in:
Pavel Manannikov
2020-11-23 19:42:50 +02:00
parent 2332520d67
commit 97e3a3debc
4 changed files with 15 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
version-number/README.md
View File

@ -78,7 +78,7 @@ public class BookRepository {
throw new BookNotFoundException("Not found book with id: " + book.getId());
}
Book latestBook = collection.get(book.getId());
var latestBook = collection.get(book.getId());
if (book.getVersion() != latestBook.getVersion()) {
throw new VersionMismatchException(
"Tried to update stale version " + book.getVersion()
@ -107,10 +107,10 @@ public class BookRepository {
Here's the concurrency control in action:
```java
long bookId = 1;
var bookId = 1;
// Alice and Bob took the book concurrently
final Book aliceBook = bookRepository.get(bookId);
final Book bobBook = bookRepository.get(bookId);
final var aliceBook = bookRepository.get(bookId);
final var bobBook = bookRepository.get(bookId);
aliceBook.setTitle("Kama Sutra"); // Alice has updated book title
bookRepository.update(aliceBook); // and successfully saved book in database