eclipse javax.persistence.* 来源，在哪里？
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javax.persistence.* sources, where?
提问by pnt
I might be missing something really obvious here, but I couldn't find the sources for a few classes from the javax.persistence package.
我可能在这里遗漏了一些非常明显的东西，但我无法从 javax.persistence 包中找到一些类的来源。
I'm using EclipseLink as a JPA provider. When I tried Ctrl+left clicking a method of the EntityManager interface, Eclipse said that I should attach the sources since it can't find them. I tried attaching the EclipseLink ones but it complained it cannot find the source for EntityManager there.
我使用 EclipseLink 作为 JPA 提供程序。当我尝试 Ctrl+左键单击 EntityManager 接口的方法时，Eclipse 说我应该附加源，因为它找不到它们。我尝试附加 EclipseLink 的，但它抱怨在那里找不到 EntityManager 的源。
What sources do I need to attach in order to view the code in Eclipse? Could somebody provide a link?
我需要附加哪些源才能在 Eclipse 中查看代码？有人可以提供链接吗？
采纳答案by James
I think if you create a JPA project type in Eclipse you will be able to see the JPA source, or perhaps load the JPA module.
我认为如果您在 Eclipse 中创建 JPA 项目类型，您将能够看到 JPA 源，或者可能加载 JPA 模块。
Only the source code to EclipseLink is in the eclipselink-src.jar, you can access the source to JPA from the EclipseLink repository,
只有 EclipseLink 的源代码在 eclipselink-src.jar 中，您可以从 EclipseLink 存储库访问 JPA 的源代码，
http://dev.eclipse.org/svnroot/rt/org.eclipse.persistence/trunk/jpa/plugins/
http://dev.eclipse.org/svnroot/rt/org.eclipse.persistence/trunk/jpa/plugins/
The source is not that interesting for JPA, as it is a spec, and all interfaces, there is little to no real code.
源代码对于 JPA 来说不是那么有趣，因为它是一个规范，并且所有接口都几乎没有真正的代码。
回答by Andrei Sura
The actual implementations of the interfaces can be seen by cloning the git repo:
通过克隆 git repo 可以看到接口的实际实现：
git clone https://github.com/eclipse/javax.persistence.git
cd javax.persistence
== Then find a specific function
== 然后找具体的函数
grep -ir 'close()' *
src/javax/persistence/EntityManager.java: public void close();
src/javax/persistence/EntityManagerFactory.java: public void close();
src/javax/persistence/spi/PersistenceProviderResolverHolder.java: in.close();
回答by dira
IF you use maven
如果你使用 maven
- Issue
mvn eclipse:eclipse -DdownloadSource=truecommand, to download the sources jars to local.m2repo. - refresh the project in eclipse.
- 发出
mvn eclipse:eclipse -DdownloadSource=true命令，将源 jar 下载到本地存储.m2库。 - 在 Eclipse 中刷新项目。
If you use m2eclipseplugin,
如果你使用m2eclipse插件，
- right click on project --> Maven --> Download Sources.
- right click on project --> Maven --> Update Project Configuration.
- 右键单击项目 --> Maven --> 下载源。
- 右键单击项目 --> Maven --> 更新项目配置。
回答by nanda
Maybe you used different version for the classes jar and the sources jar?
也许您对类 jar 和源 jar 使用了不同的版本？
回答by DataNucleus
You can get the equivalent from Apache http://repo2.maven.org/maven2/org/apache/geronimo/specs/geronimo-jpa_2.0_spec/1.1/and that directory has source and runtime jar. And that's under a more flexible Apache 2 license
您可以从 Apache http://repo2.maven.org/maven2/org/apache/geronimo/specs/geronimo-jpa_2.0_spec/1.1/获得等效文件， 并且该目录具有源代码和运行时 jar。这是在更灵活的 Apache 2 许可下
