ORMLite ManyToOne 的好友 JoinColumn 注解未处理
我一直在Android上摆弄ormlite。现在还处于早期阶段，到目前为止我真的很喜欢我所看到的。
在阅读手册时，我注意到可以使用 javax.persistence 注释而不是默认注释。当尝试定义 @ManyToOne 关系时，我有点困惑。通常我使用 @JoinColumn(name="xxx") 来用 @ManyToOne 定义列名，即。不是@Column(name="xxx")。我是对的吗，或者我应该以不同的方式看待这个问题。
我快速浏览了一下，认为对 com.j256.ormlite.misc.JavaxPersistence.java 进行一些小的添加就可以解决这个问题。基本上是复制处理 @Column 的代码来代替处理 @JoinColumn （可能没有“长度”）。
这也让我想知道使用标准 ormlite 注释和 javax.persistence 注释是否存在任何问题。诸如以下问题：
- 标准注释是否优先？以及
- 是否可以禁用 javax.persistence 注释的处理？
I have been fiddling with ormlite on android. It's early days and so far I really like what I have seen.
While reading the manual I noticed the ability to use javax.persistence annotation instead of the default. When trying to define a @ManyToOne relationship I cam a little unstuck. Normally I use a @JoinColumn(name="xxx") to defined the column name with a @ManyToOne, ie. not the @Column(name="xxx"). Am I right, or should I be looking at this a different way.
I had a quick look and thought a few small additions to com.j256.ormlite.misc.JavaxPersistence.java would resolve this issue. Basically the duplicating the code to handle the @Column to instead handle the @JoinColumn (maybe without the "length").
This also left me wondering is there were any issues with using both the standard ormlite annotations as well as the javax.persistence ones. Questions like:
- do the standard annotations take precedence?, and
- can the processing of
javax.persistenceannotations be disabled?
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不幸的是@user928550，ORMLite并不完全支持
javax.persistence注释。手册中定义了对它们的有限支持：我很乐意改善对他们的支持，如果您想就如何进行提出建议。请使用 ORMLite 开发人员邮件列表来建议您添加内容：
回复您具体问题，
@DatabaseField注释的存在将覆盖任何javax.persistence注释处理，并且您无法禁用javax.persistence的处理（除非你指定一个@DatabaseField）。Unfortunately @user928550, the
javax.persistenceannotations are not completely supported by ORMLite. The limited support for them is defined in the manual:I'd be happy to improve the support for them if you want to make suggestions about how to proceed. Please use the ORMLite developers mailing list to suggest your additions:
In answer to you specific questions, existence of the
@DatabaseFieldannotation will override anyjavax.persistenceannotation processing and you cannot disable the processing ofjavax.persistence(unless you specify a@DatabaseField).