001package io.cui.tools.formatting.template.token; 002 003import java.io.Serializable; 004 005import io.cui.tools.formatting.template.FormatterSupport; 006 007/** 008 * Any token should provide a method to substitute "placeholder" with his value 009 * 010 * @author Eugen Fischer 011 */ 012public interface Token extends Serializable { 013 014 /** 015 * @param content must not be null 016 * @return token specific template with substituted attribute value if attribute exists, 017 * <code>empty</code> String otherwise 018 */ 019 String substituteAttribute(FormatterSupport content); 020 021 /** 022 * @return true if Token has no substitutions 023 */ 024 boolean isStringToken(); 025 026}