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Improve unless condition in caching doc 

See gh-1387
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Michael J. Simons 2017-04-13 08:17:16 +02:00 committed by Stephane Nicoll
parent d866715556
commit c35ddf905a
1 changed files with 2 additions and 2 deletions
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src/asciidoc/integration.adoc
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@ -8506,11 +8506,11 @@ supported wrapper so the previous example can be rewritten as follows:
[source,java,indent=0] [source,java,indent=0]
[subs="verbatim,quotes"] [subs="verbatim,quotes"]
---- ----
@Cacheable(cacheNames="book", condition="#name.length() < 32", **unless="#result.hardback"**) @Cacheable(cacheNames="book", condition="#name.length() < 32", **unless="#result?.hardback"**)
public Optional<Book> findBook(String name) public Optional<Book> findBook(String name)
---- ----
Note that `result` still refers to `Book` and not `Optional`. Note that `result` still refers to `Book` and not `Optional`. Also, we are using the safe navigation operator here to accommodate the fact that the `Optional` maybe empty.
[[cache-spel-context]] [[cache-spel-context]]
===== Available caching SpEL evaluation context ===== Available caching SpEL evaluation context