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mention 'org.hibernate.orm:hibernate-hikaricp' in doc #10699

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Aug 6, 2025
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mention 'org.hibernate.orm:hibernate-hikaricp' in doc #10699

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d85d6f0
mention 'org.hibernate.orm:hibernate-hikaricp' in doc
gavinking Aug 6, 2025
403f719
add a tip about fetch size and MySQL
gavinking Aug 6, 2025
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11 changes: 10 additions & 1 deletion documentation/src/main/asciidoc/introduction/Tuning.adoc
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Expand Up @@ -92,7 +92,10 @@ The following settings are common to all connection pools supported by Hibernate
| link:{doc-javadoc-url}/org/hibernate/cfg/JdbcSettings.html#ISOLATION[`hibernate.connection.isolation`] | The default transaction isolation level
|===

A popular alternative to Agroal is HikariCP.
:hikaricp: https://github.com/brettwooldridge/HikariCP

A popular alternative to Agroal is {hikaricp}[HikariCP].
Integration with HikariCP is provided by the module `org.hibernate.orm:hibernate-hikaricp`.
Its settings are enumerated by link:{doc-javadoc-url}/org/hibernate/cfg/HikariCPSettings.html[`HikariCPSettings`].

.Container-managed datasources
Expand Down Expand Up @@ -125,6 +128,12 @@ The Oracle JDBC driver defaults to a JDBC fetch size of 10.
You should _always_ set `hibernate.jdbc.fetch_size` explicitly if you're using Oracle, or, even better, specify the parameter `defaultRowPrefetch` in the JDBC connection URL.
====

[TIP]
====
The MySQL JDBC driver ignores the fetch size by default.
The JDBC connection property `useCursorFetch=true` enables the use of server-side cursors, and with this setting the driver respects the fetch size.
====

[[statement-batching]]
=== Enabling statement batching

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