Accessing Map elements via Enum key in Freemarker

I'm trying to access elements in a HashMap. The keys of this HashMap are defined by an Enum.

After going through the documentation, I figured that in order to be able to access the Enum, I have to send it to Freemarker like so:

BeansWrapper wrapper = BeansWrapper.getDefaultInstance();
TemplateHashModel enumModels = wrapper.getEnumModels();
TemplateHashModel fieldTypeModel = (TemplateHashModel)enumModels.get("com.example.MinisiteFieldType");
root.put("fieldtypes", fieldTypeModel);

In my .ftl I tried the following:

${myelement.mymap[fieldtypes.SEOTEXT]}

However I get: Expression myelement.mymap[fieldtypes.SEOTEXT] is undefined on line X...

I wanted to make sure I mapped the enum correctly, so I tried:

${fieldtypes.SEOTEXT}

This didn't print anything, leaving me wondering wether it got through, or simply couldn't be printed.

In Java debug, just before inserting the TemplateHashModel in my root 开发者_Python百科Map, 'fieldTypeModel' is filled with the correct data...

Any help would be appreciated!

Bart

I suspect your problem is that by using the [] syntax to access your map, you're implicitly telling Freemarker to treat it as a hash. That may not work as you'd expect -- the hash will probably represent the Map object, mapping 'size' and 'containsKey' and so forth to Java methods. Instead, try:

${myelement.mymap.get(fieldtypes.SEOTEXT)}

As a side note, I've never tried accessing enums by the method you describe, but there's another way to access Java constants from a template that doesn't require Java code, so the following should also work:

${myelement.mymap.get(stack.findValue("@com.example.MinisiteFieldType@SEOTEXT"))}