Datastax java驱动程序3.0.0未找到枚举注释

希望我正在阅读文档： http ： //docs.datastax.com/en/developer/java-driver/3.0/java-driver/reference/crudOperations.html 。

枚举注释

如果您的类包含枚举类型字段，则使用枚举注释。

我有一个Java枚举，我想使用@Enumerated注释，但我似乎无法在3.0.0版本的驱动程序中找到它，它出现在2.1.9中。

$ find . -type f -name \*.jar|while read i; do echo ====== $i =====; jar -tf $i|grep Enumerated; done ====== ./cassandra-driver-core/2.1.4/cassandra-driver-core-2.1.4-javadoc.jar ===== ====== ./cassandra-driver-core/2.1.4/cassandra-driver-core-2.1.4-sources.jar ===== ====== ./cassandra-driver-core/2.1.4/cassandra-driver-core-2.1.4.jar ===== ====== ./cassandra-driver-core/2.1.5/cassandra-driver-core-2.1.5.jar ===== ====== ./cassandra-driver-core/2.1.7.1/cassandra-driver-core-2.1.7.1.jar ===== ====== ./cassandra-driver-core/2.1.9/cassandra-driver-core-2.1.9.jar ===== ====== ./cassandra-driver-core/3.0.0/cassandra-driver-core-3.0.0-sources.jar ===== ====== ./cassandra-driver-core/3.0.0/cassandra-driver-core-3.0.0.jar ===== ====== ./cassandra-driver-dse/2.1.5/cassandra-driver-dse-2.1.5.jar ===== ====== ./cassandra-driver-extras/3.0.0/cassandra-driver-extras-3.0.0.jar ===== ====== ./cassandra-driver-mapping/2.1.4/cassandra-driver-mapping-2.1.4-javadoc.jar ===== com/datastax/driver/mapping/annotations/class-use/Enumerated.html com/datastax/driver/mapping/annotations/Enumerated.html ====== ./cassandra-driver-mapping/2.1.4/cassandra-driver-mapping-2.1.4-sources.jar ===== com/datastax/driver/mapping/annotations/Enumerated.java ====== ./cassandra-driver-mapping/2.1.4/cassandra-driver-mapping-2.1.4.jar ===== com/datastax/driver/mapping/annotations/Enumerated.class ====== ./cassandra-driver-mapping/2.1.7.1/cassandra-driver-mapping-2.1.7.1.jar ===== com/datastax/driver/mapping/annotations/Enumerated.class ====== ./cassandra-driver-mapping/2.1.9/cassandra-driver-mapping-2.1.9.jar ===== com/datastax/driver/mapping/annotations/Enumerated.class ====== ./cassandra-driver-mapping/3.0.0/cassandra-driver-mapping-3.0.0-sources.jar ===== ====== ./cassandra-driver-mapping/3.0.0/cassandra-driver-mapping-3.0.0.jar ===== 

这个版本在新版本中发生了变化吗？ 如果是，那么文档也应该更新。

它确实似乎已从消息来源消失： https ： //github.com/datastax/java-driver/tree/3.0/driver-mapping/src/main/java/com/datastax/driver/mapping/annotations

Answer 1

看起来已删除对@Enumerated的支持。 现在，enums支持由驱动程序附加内容中的编解码器提供。 查看这两张附加信息的门票： JAVA-605和JAVA-846 。

您的枚举代码的外观示例如下：

[使用] EnumOrdinalCodec和EnumNameCodec ：

  java enum Foo {...} enum Bar {...} // register the appropriate codecs CodecRegistry.DEFAULT_INSTANCE .register(new EnumOrdinalCodec(Foo.class)) .register(new EnumNameCodec(Bar.class)) // the following mappings are handled out-of-the-box @Table public class MyPojo { private Foo foo; private List bars; ... } 

我们正在修复文档。