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Merge pull request #3808 from OpenLiberty/24.0.0.6-beta-post
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Edits per review of 2024-06-04-24.0.0.6-beta.adoc
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dmuelle authored Jun 3, 2024
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author_picture: https://avatars3.githubusercontent.com/dmuelle
author_github: https://github.com/dmuelle
seo-title: Jakarta EE11 previews and more in 24.0.0.6-beta - OpenLiberty.io
seo-description: The 24.0.0.6-beta release includes previews of the Jakarta Validation and Jakarta Data implementations, both of which are part of Jakarta EE 11. The release also includes includes enhancements for histogram and timer metrics in MicroProfile 3.0 and 4.0 and InstantOn support for distributed HTTP session caching.
seo-description: The 24.0.0.6-beta release includes previews of the Jakarta Validation and Jakarta Data implementations, both of which are part of Jakarta EE 11. The release also includes enhancements for histogram and timer metrics in MicroProfile 3.0 and 4.0 and InstantOn support for distributed HTTP session caching.
blog_description: The 24.0.0.6-beta release includes previews of the Jakarta Validation and Jakarta Data implementations, both of which are part of Jakarta EE 11. The release also includes enhancements for histogram and timer metrics in MicroProfile 3.0 and 4.0 and InstantOn support for distributed HTTP session caching.
open-graph-image: https://openliberty.io/img/twitter_card.jpg
open-graph-image-alt: Open Liberty Logo
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[#validate]
== Validate Java constraints and records with Jakarta Validation 3.1

Jakarta Validation provides a mechanism to validate constraints that are imposed on Java objects by using annotations. The most noticeable change in version 3.1 is the name change, from Jakarta Bean Validation to Jakarta Validation. This version also includes explicit support for validating Java record classes, which were added in Java 16. Records reduce much the boilerplate code in simple data classes, and pair nicely with Jakarta Validation.
Jakarta Validation provides a mechanism to validate constraints that are imposed on Java objects by using annotations. The most noticeable change in version 3.1 is the name change, from Jakarta Bean Validation to Jakarta Validation. This version also includes explicit support for validating Java record classes, which were added in Java 16. Records reduce much of the boilerplate code in simple data classes, and pair nicely with Jakarta Validation.

The following examples demonstrate the simplicity of defining a Java record with Jakarta Validation annotations, as well as performing validation.

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[cols="2*"]
|===
| Property | Description
| mp.metrics.distribution.percentiles | Defines a custom set of percentiles for matching Histogram and Timer metrics to track and output. Accepts for a set of integer and decimal values for a metric name pairing. Can be used to disable percentile output if no value is provided with a metric name pairing.
| mp.metrics.distribution.histogram.buckets| Defines a custom set of (cumulative) histogram buckets for matching Histogram metrics to track and output. Accepts for a set of integer and decimal values for a metric name pairing.
| mp.metrics.distribution.timer.buckets| Defines a custom set of (cumulative) histogram buckets for matching Timer metrics to track and output. Accepts for a set of decimal values with a time unit appended (that is, ms, s, m, h) for a metric name pairing.
| mp.metrics.distribution.percentiles | Defines a custom set of percentiles for matching Histogram and Timer metrics to track and output. Accepts a set of integer and decimal values for a metric name pairing. Can be used to disable percentile output if no value is provided with a metric name pairing.
| mp.metrics.distribution.histogram.buckets| Defines a custom set of (cumulative) histogram buckets for matching Histogram metrics to track and output. Accepts a set of integer and decimal values for a metric name pairing.
| mp.metrics.distribution.timer.buckets| Defines a custom set of (cumulative) histogram buckets for matching Timer metrics to track and output. Accepts a set of decimal values with a time unit appended (that is, ms, s, m, h) for a metric name pairing.
|mp.metrics.distribution.percentiles-histogram.enabled | Configures any matching Histogram or Timer metric to provide a large set of default histogram buckets to allow for percentile configuration with a monitoring tool. Accepts a true/false value for a metric name pairing.
| mp.metrics.distribution.histogram.max-value| When percentile-histogram is enabled for a Timer, this property defines an upper bound for the buckets reported. Accepts a single integer or decimal value for a metric name pairing.
| mp.metrics.distribution.histogram.min-value| When percentile-histogram is enabled for a Timer, this property defines a lower bound for the buckets reported. Accepts a single integer or decimal value for a metric name pairing.
|mp.metrics.distribution.timer.max-value | When percentile-histogram is enabled for a Histogram, this property defines an upper bound for the buckets reported. Accepts a single decimal value with a time unit appended (that is, ms, s, m, h) for a metric name pairing. Accepts for a single decimal value with a time unit appended (that is, ms, s, m, h) for a metric name pairing.
|mp.metrics.distribution.timer.min-value | When percentile-histogram is enabled for a Histogram, this property defines a lower bound for the buckets reported. Accepts for a single decimal value with a time unit appended (that is, ms, s, m, h) for a metric name pairing.
|mp.metrics.distribution.timer.max-value | When percentile-histogram is enabled for a Histogram, this property defines an upper bound for the buckets reported. Accepts a single decimal value with a time unit appended (that is, ms, s, m, h) for a metric name pairing. Accepts a single decimal value with a time unit appended (that is, ms, s, m, h) for a metric name pairing.
|mp.metrics.distribution.timer.min-value | When percentile-histogram is enabled for a Histogram, this property defines a lower bound for the buckets reported. Accepts a single decimal value with a time unit appended (that is, ms, s, m, h) for a metric name pairing.

|===

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