enum
public enum ArticlePublishStatus {
DRAFT ("DRAFT"),
SUBMITTED ("SUB"),
PUBLISHED ("PUB");
private final String code;
private ArticlePublishStatus(String code) {
this.code=code;
}
}
Screen Object (aka form backing object)
public class ArticleHeaderEditScreenObject extends EditScreenObject {
private Integer articleId;
private String title;
private ArticlePublishStatus publishStatus;
View
<form:select path="publishStatus"
items="${screenObject.getArticlePublishStatusOptionList()}"
itemLabel="label"
itemValue="value" />
html
<select id="publishStatus" name="publishStatus">
<option value="DRAFT" selected="selected">Draft</option>
<option value="SUB">Submitted</option>
<option value="PUB">Published</option>
</select>
Exception
Draft works fine, as the name and code of corresponding enum are the same. Saving the page with Submitted or Published fails.
org.springframework.core.convert.ConversionFailedException: Failed to convert from type java.lang.String to type com.siteadmin.domain.ArticlePublishStatus for value 'PUB'; nested exception is java.lang.IllegalArgumentException: No enum constant com.siteadmin.domain.ArticlePublishStatus.PUB
org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:41)
java.lang.IllegalArgumentException: No enum constant com.siteadmin.domain.ArticlePublishStatus.PUB
java.lang.Enum.valueOf(Enum.java:236)
I see that it's having problems selecting enum based on its code but I still have not figured out what to do about it. There's lots on the subject of enums but haven't found anything that would help this one. Is there a method that enum needs implemented to address it?
With out seeing the implementation of getArticlePublishStatusOptionList(), this a bit of a guess...
If you used the toString value of ArticlePublishStatus as the value part of the Option returned from getArticlePublishStatusOptionList(), then the Spring MVC Enum Converter could bind your enum using .valueOf.
You should use
<option value="SUB">Submitted</option>
<option value="PUB">Published</option>
Spring use .valueOf("SUBMITTED"); to convert the value to enum. It has nothing to do with the enum internal value.