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Revised alias definition example in reference documentation

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Issue: SPR-17536
This commit is contained in:
Juergen Hoeller
2018-11-25 22:30:41 +01:00
parent e9f7c357b7
commit 9600e015b7
1 changed files with 10 additions and 10 deletions
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20
src/asciidoc/core-beans.adoc
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@@ -545,21 +545,21 @@ XML-based configuration metadata, you can use the `<alias/>` element to accompli
<alias name="fromName" alias="toName"/>
----
In this case, a bean in the same container which is named `fromName`, may also,
In this case, a bean (in the same container) named `fromName` may also,
after the use of this alias definition, be referred to as `toName`.
For example, the configuration metadata for subsystem A may refer to a DataSource via
the name `subsystemA-dataSource`. The configuration metadata for subsystem B may refer to
a DataSource via the name `subsystemB-dataSource`. When composing the main application
that uses both these subsystems the main application refers to the DataSource via the
name `myApp-dataSource`. To have all three names refer to the same object you add to the
MyApp configuration metadata the following aliases definitions:
For example, the configuration metadata for subsystem A may refer to a DataSource by the
name of `subsystemA-dataSource`. The configuration metadata for subsystem B may refer to
a DataSource by the name of `subsystemB-dataSource`. When composing the main application
that uses both these subsystems, the main application refers to the DataSource by the
name of `myApp-dataSource`. To have all three names refer to the same object, you can
add the following alias definitions to the configuration metadata:
[source,xml,indent=0]
[subs="verbatim,quotes"]
----
<alias name="subsystemA-dataSource" alias="subsystemB-dataSource"/>
<alias name="subsystemA-dataSource" alias="myApp-dataSource" />
<alias name="myApp-dataSource" alias="subsystemA-dataSource"/>
<alias name="myApp-dataSource" alias="subsystemB-dataSource"/>
----
Now each component and the main application can refer to the dataSource through a name
@@ -6762,7 +6762,7 @@ annotation accepts a String array for this purpose.
@Configuration
public class AppConfig {
@Bean(name = { "dataSource", "subsystemA-dataSource", "subsystemB-dataSource" })
@Bean({"dataSource", "subsystemA-dataSource", "subsystemB-dataSource"})
public DataSource dataSource() {
// instantiate, configure and return DataSource bean...
}