如何强制让 Spring 从未命名的实现中进行注入

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英文:

How force spring to inject from not named implementation

问题

我正在使用Atlassian SDK来创建一个插件。SDK中有一个名为FieldHtmlFactory的接口,SDK中的一个名为fieldHtmlFactory的类已对其进行了实现,因此我们可以使用注入来访问它们。但由于某些原因,在某些情况下,我应该对这个接口进行另一个实现。现在我可以通过类名注入自己的类,但由于SDK实现没有任何名称,我不能再使用它了。是否有一种方法可以强制Spring在这种情况下使用SDK的实现?

SDK接口:

@ExperimentalApi
public interface FieldHtmlFactory {
    List<FieldHtmlBean> getCreateFields(ApplicationUser var1, OperationContext var2, Action var3, MutableIssue var4, boolean var5, List<String> var6);

    List<FieldHtmlBean> getLinkedIssueCreateFields(ApplicationUser var1, OperationContext var2, Action var3, MutableIssue var4, Issue var5, boolean var6, List<String> var7);

    List<FieldHtmlBean> getEditFields(ApplicationUser var1, OperationContext var2, Action var3, Issue var4, boolean var5);

    List<FieldHtmlBean> getInlineEditFields(ApplicationUser var1, OperationContext var2, Action var3, Issue var4, boolean var5);

    List<FieldHtmlBean> getSubTaskCreateFields(ApplicationUser var1, OperationContext var2, Action var3, MutableIssue var4, boolean var5, List<String> var6);
}

SDK实现:

public class fieldHtmlFactory implements FieldHtmlFactory {
    ...
}

我的实现:

@Named("FieldEditorFactoryImpl")
public class EditorHtmlFactoryImpl implements FieldHtmlFactory {
    ...
}

在某处使用我的类:

@Autowired
public MyREST(@Named("FieldEditorFactoryImpl") FieldHtmlFactory fieldHtmlFactory, ...)

我需要像这样使用SDK类,但是这样做不起作用:

@Autowired
public MyREST(@Named("") FieldHtmlFactory fieldHtmlFactory, ...)
英文:

I am using the Atlassian SDK to create a plugin. There is an interface named FieldHtmlFactory in the SDK which a class named fieldHtmlFactory has implemented it so we can use injection to access them. But for some reason, I should make another implementation in some cases from this interface. Now I can inject my own class by its name but as SDK implementation has not any name I cannot use it anymore. Is there a way to force spring to use SDK's implementation in this case?

SDK interface:

@ExperimentalApi
public interface FieldHtmlFactory {
    List&lt;FieldHtmlBean&gt; getCreateFields(ApplicationUser var1, OperationContext var2, Action var3, MutableIssue var4, boolean var5, List&lt;String&gt; var6);

    List&lt;FieldHtmlBean&gt; getLinkedIssueCreateFields(ApplicationUser var1, OperationContext var2, Action var3, MutableIssue var4, Issue var5, boolean var6, List&lt;String&gt; var7);

    List&lt;FieldHtmlBean&gt; getEditFields(ApplicationUser var1, OperationContext var2, Action var3, Issue var4, boolean var5);

    List&lt;FieldHtmlBean&gt; getInlineEditFields(ApplicationUser var1, OperationContext var2, Action var3, Issue var4, boolean var5);

    List&lt;FieldHtmlBean&gt; getSubTaskCreateFields(ApplicationUser var1, OperationContext var2, Action var3, MutableIssue var4, boolean var5, List&lt;String&gt; var6);
}

SDK implementation:

public class fieldHtmlFactory implement FieldHtmlFactory{
    ...
}

My implementaion:

@Named(&quot;FieldEditorFactoryImpl&quot;)
public class EditorHtmlFactoryImpl implement FieldHtmlFactory{
    ...
}

Use somewhere my class:

 @Autowired
 public MyREST(@Named(&quot;FieldEditorFactoryImpl&quot;) FieldHtmlFactory fieldHtmlFactory, ...)

I need something like this to use SDK class, but, it dosen't work:

 @Autowired
 public MyREST(@Named(&quot;&quot;) FieldHtmlFactory fieldHtmlFactory, ...)

答案1

得分: 1

好的,以下是已经翻译好的部分:

好的,所以有两种不同的bean,一种是SDK提供的,可能由一些自动配置定义,另一种是你自己定义的。

将SDK提供的bean设置为@Primary bean会很有用,但你需要准确地查看它是如何定义的。通常它应该使用@ConditionalOnMissingBean进行注释,这样你就可以自己定义两种不同的bean,但显然在你的情况下并非如此。

一个简单的解决方法是使用它的默认名称,这个默认名称是类的简单名称。

@Autowired
public MyREST(@Named("fieldHtmlFactory") FieldHtmlFactory fieldHtmlFactory, ...)
英文:

OK, so there are two different beans, the one provided by the SDK, probably defined by some auto-configuration, and your own.

It would be useful to have the SDK one as a @Primary bean, but you'll need to see exactly how it's defined. Normally it schould be annotated with @ConditionalOnMissingBean, so you could define two different ones yourself, but it apparently is not in your case.

A dirty fix is to use it's default name, which is the simple class name.

@Autowired
public MyREST(@Named(&quot;fieldHtmlFactory&quot;) FieldHtmlFactory fieldHtmlFactory, ...)

huangapple
  • 本文由 发表于 2020年8月18日 22:08:36
  • 转载请务必保留本文链接:https://go.coder-hub.com/63470446.html
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