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three clarifications from Steve

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Gavin 2023-05-18 11:26:25 +02:00
parent 15422ea13b
commit 75e387e81b
1 changed files with 7 additions and 2 deletions
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9
documentation/src/main/asciidoc/introduction/Entities.adoc
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@ -561,7 +561,7 @@ Hibernate slightly extends this list with the following types:
| Classification | Package | Types | Classification | Package | Types
| Additional date/time types | `java.time` | `Duration`, `ZoneId`, `ZoneOffset`, `Year`, and even `ZonedDateTime` | Additional date/time types | `java.time` | `Duration`, `ZoneId`, `ZoneOffset`, `Year`, and even `ZonedDateTime`
| JDBC LOB types | `java.sql` | `Blob`, `Clob` | JDBC LOB types | `java.sql` | `Blob`, `Clob`, `NClob`
| Java class object | `java.lang` | `Class` | Java class object | `java.lang` | `Class`
| Miscellaneous types | `java.util` | `Currency`, `URL`, `TimeZone` | Miscellaneous types | `java.util` | `Currency`, `URL`, `TimeZone`
|==== |====
@ -681,7 +681,7 @@ Converters substantially widen the set of attribute types that can be handled by
There are two ways to apply a converter: There are two ways to apply a converter:
- the `@Convert` annotation applies an `AttributeConverter` to a particular entity attribute, or - the `@Convert` annotation applies an `AttributeConverter` to a particular entity attribute, or
- the `@Converter` annotation registers an `AttributeConverter` for automatic application to all attributes of a given type. - the `@Converter` annotation (or, alternatively, the `@ConverterRegistration` annotation) registers an `AttributeConverter` for automatic application to all attributes of a given type.
For example, the following converter will be automatically applied to any attribute of type `BitSet`, and takes care of persisting the `BitSet` to a column of type `varbinary`: For example, the following converter will be automatically applied to any attribute of type `BitSet`, and takes care of persisting the `BitSet` to a column of type `varbinary`:
@ -860,6 +860,11 @@ record Name(String firstName, String middleName, String lastName) {}
In this case, the requirement for a constructor with no parameters is relaxed. In this case, the requirement for a constructor with no parameters is relaxed.
[NOTE]
====
Unfortunately, as of May 2023, Java `record` types still cannot be used as ``@EmbeddedId``s.
====
We may now use our `Name` class (or record) as the type of an entity attribute: We may now use our `Name` class (or record) as the type of an entity attribute:
[source,java] [source,java]