UserNameFunction.java

package com.aperture_software.glados_wiki.entities.functions;

import com.aperture_software.glados_wiki.entities.User;
import com.google.common.base.Function;

/**
 * Created by jhyun on 14. 2. 5.
 */
public class UserNameFunction implements Function<User, String> {
    @Override
    public String apply(User input) {
        if (input != null) {
            return input.getUsername();
        } else {
            return "";
        }
    }
}