How to get parameter type from javax.lang.model.VariableElement

Question

I'm trying to find the types of the parameters of a method using the Java 6 metamodel API. If the type is an enum, I'd also like to know all of it's type's enum constant names. Here's what I've got so far:

for (Element member : members) {
    if(member.getKind() == ElementKind.METHOD) {
        ExecutableElement methodElement = (ExecutableElement) member;
        List<? extends VariableElement> parameters = methodElement.getParameters();
        for (VariableElement parameter : parameters) {
            //How do I get the type of the parameter here?
        }
    }
}

prunge · Accepted Answer · 2011-10-14 05:29:02Z

18

Element#asType() gets you the DeclaredType.

For enums, use Types#asElement() with the DeclaredType to get the enum type's element, and then iterate over the members using either an ElementVisitor or by using getEnclosedElements().

answered Oct 14, 2011 at 5:29

prunge

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1 Comment

Daniel Over a year ago

It worked, though I can't help but feel like this is one of the least intuitive APIs I've worked with.

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