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javadoc for JPA-standard cache config settings

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This commit is contained in:
Gavin King 2024-12-18 01:14:14 +01:00
parent 50b64274e4
commit d65b53cdb7
1 changed files with 23 additions and 7 deletions
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30
hibernate-core/src/main/java/org/hibernate/cfg/CacheSettings.java
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@ -18,12 +18,28 @@
*/
public interface CacheSettings {
/**
* When enabled, specifies that the second-level cache (which JPA calls the
* "shared" cache) may be used, as per the rules defined in JPA 2 section 3.1.7.
* Specifies the {@link jakarta.persistence.SharedCacheMode}.
* <p>
* See JPA 2 sections 9.4.3 and 8.2.1.7
* Hibernate is designed to be used with
* {@link jakarta.persistence.SharedCacheMode#ENABLE_SELECTIVE
* ENABLE_SELECTIVE}, and we strongly discourage the use of
* {@link jakarta.persistence.SharedCacheMode#ALL ALL} or
* {@link jakarta.persistence.SharedCacheMode#DISABLE_SELECTIVE
* DISABLE_SELECTIVE}, since in any multiuser system a cache is
* <em>always</em> a potential source of bugs which are difficult
* to isolate and reproduce. Caching should never be turned on
* "by accident".
* <p>
* Setting the shared cache mode to
* {@link jakarta.persistence.SharedCacheMode#NONE} has very
* nearly the same effect as {@linkplain #USE_SECOND_LEVEL_CACHE
* disabling the second-level cache}, globally suppressing every
* occurrence of the {@link jakarta.persistence.Cacheable} and
* {@link org.hibernate.annotations.Cache} annotations.
*
* @see jakarta.persistence.SharedCacheMode
*
* @settingDefault {@code ENABLE_SELECTIVE}
*/
String JAKARTA_SHARED_CACHE_MODE = "jakarta.persistence.sharedCache.mode";
@ -35,6 +51,8 @@ public interface CacheSettings {
* {@link jakarta.persistence.CacheRetrieveMode#USE}.
*
* @see SpecHints#HINT_SPEC_CACHE_RETRIEVE_MODE
*
* @settingDefault {@code USE}
*/
String JAKARTA_SHARED_CACHE_RETRIEVE_MODE = SpecHints.HINT_SPEC_CACHE_RETRIEVE_MODE;
@ -46,6 +64,8 @@ public interface CacheSettings {
* {@link jakarta.persistence.CacheStoreMode#USE}.
*
* @see SpecHints#HINT_SPEC_CACHE_RETRIEVE_MODE
*
* @settingDefault {@code USE}
*/
String JAKARTA_SHARED_CACHE_STORE_MODE = SpecHints.HINT_SPEC_CACHE_STORE_MODE;
@ -222,10 +242,6 @@ public interface CacheSettings {
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/**
* Used to indicate whether second-level (what JPA terms shared cache)
* caching is enabled as per the rules defined in JPA 2 section 3.1.7.
* <p>
* See JPA 2 sections 9.4.3 and 8.2.1.7
* @see jakarta.persistence.SharedCacheMode
*
* @deprecated Use {@link #JAKARTA_SHARED_CACHE_MODE} instead