[英]Why is the following annotation legal in Java but not in groovy?
I wanted to add encryption to my application using the Jasypt library. 我想使用Jasypt库为我的应用程序添加加密。 Their integration page says to add a @TypeDef annotation:
他们的集成页面说要添加一个@TypeDef注释:
" Define the encryption type with a @TypeDef annotation, which could be either inside the persisted entity class or inside a @TypeDefs declaration in a separate package-info.java file ": “ 使用@TypeDef注释定义加密类型,该注释可以位于持久化实体类内部,也可以位于单独的package-info.java文件中的@TypeDefs声明内 ”:
@TypeDef(
name="encryptedString",
typeClass=EncryptedStringType.class,
parameters= {
@Parameter(name="encryptorRegisteredName", value="myHibernateStringEncryptor")
}
)
However, I noticed that when I tried this on a groovy file, I received a syntax error. 但是,我注意到当我在groovy文件上尝试这个时,我收到了语法错误。
" Groovy:unexpected token: } @ line 12, column 3. " “ Groovy:意外的令牌:} @第12行,第3列。 ”
When I copy and pasted the exact code into a java file it works fine. 当我将确切的代码复制并粘贴到java文件中时,它可以正常工作。 If I remove the parameters argument it works, I'm thinking that the parameters { } argument is being interpreted as a closure by groovy.
如果我删除它有效的参数参数,我认为参数{}参数被groovy解释为闭包。
EDIT: I ended up moving the annotation to package-info.java but I still want to know why this doesn't work in groovy. 编辑:我最终将注释移动到package-info.java但我仍然想知道为什么这在groovy中不起作用。
The problem probably resides in the parameters block: 问题可能在于参数块:
parameters= {
@Parameter(name="encryptorRegisteredName", value="myHibernateStringEncryptor")
}
Whereas curly-braces can be used in java to specify a static-initialization block for arrays, in groovy the curly-brace is the grammar token for a closure, which isn't what you want here. 虽然可以在java中使用花括号来为数组指定静态初始化块,但在groovy中,花括号是闭包的语法标记,这不是你想要的。 I imagine the following might work:
我想以下可能会奏效:
parameters= [
@Parameter(name="encryptorRegisteredName", value="myHibernateStringEncryptor")
]
Note the hard-braces, which is groovy's token for anonymously-created lists/maps. 注意硬括号,这是匿名创建的列表/地图的groovy标记。
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