How do I use an enum parameter in struts 2?

Question

I'm trying to get an Action in Struts 2 to work with an Enum as an input parameter. What I've done so far looks like: ``` public TestAction { public enum Module { VALUE1; } private Module module; public void setModule(Module module) { this.module = module; } public Module getModule() { return module; } } ``` But when trying to use this I get an xwork conversion error, and the action itself doesn't even execute. Can I make this work as is, or should I provide setModule(String) myself? Edit: I'm using struts 2.1.6 The URL I'm trying: /test.action?module=value1

Accepted Answer

It should bind a string to a enum straight away. I think the enum type converter has been in the default configuration since I think 2.1.x.

- What version of struts 2 are you using?

if you are unsure the following is in my `xwork-conversion.properties` in a 2.0.14 app

```
java.lang.Enum = com.opensymphony.xwork2.util.EnumTypeConverter
```

EDIT: In response to the comment, if you need to ignore case for assigning an enum you have the following choices:

- Change the value of enum to actaully be lower case - not great style and could make your code look a bit weird

- Write a new case insensitive type converter for java.lang.Enum (just copy the xwork one and toUpper the input I guess)

- add a new setModule(String) for this specific case

How do I use an enum parameter in struts 2?

Solution

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