How to assign bean's property an Enum value in Spring config file?

user_35520 0
Viewed 138407

I have a standalone enum type defined, something like this:

package my.pkg.types;

public enum MyEnumType {
    TYPE1,
    TYPE2
}

Now, I want to inject a value of that type into a bean property:

<bean name="someName" class="my.pkg.classes">
   <property name="type" value="my.pkg.types.MyEnumType.TYPE1" />
</bean>

...and that didn't work :(

How should I Inject an Enum into a spring bean?

spring java
9 Answers

Have you tried just "TYPE1"? I suppose Spring uses reflection to determine the type of "type" anyway, so the fully qualified name is redundant. Spring generally doesn't subscribe to redundancy!

user_236910

Use the value child element instead of the value attribute and specify the Enum class name:

<property name="residence">
    <value type="SocialSecurity$Residence">ALIEN</value>
</property>

The advantage of this approach over just writing value="ALIEN" is that it also works if Spring can't infer the actual type of the enum from the property (e.g. the property's declared type is an interface).Adapted from araqnid's comment.

user_2613450

You can just do "TYPE1".

JacobM_12370

You can write Bean Editors (details are in the Spring Docs) if you want to add further value and write to custom types.

Fortyrunner_168280
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