top-level class

基本解釋

AopRemovals, which prevents calls to specified methods from being executed, is the new top-level class.
它阻止指定方法的調(diào)用被執(zhí)行，是一個(gè)新的頂級(jí)類。
A key annotation is @XmlRootElement, which maps a top-level class to a global element in the XML schema that is used by the WSDL of the Web service.
關(guān)鍵的注解是 @XmlRootElement，它把頂級(jí)類映射到 Web 服務(wù)的 WSDL 使用的 XML 模式中的全局元素。
Discovering the entire inheritance tree structure from an existing system is particularly useful, because it helps you uncover what the top-level class is and what subclasses are in the tree.
從一個(gè)已存在系統(tǒng)中發(fā)現(xiàn)整個(gè)的繼承樹結(jié)構(gòu)是相當(dāng)有用的，因?yàn)樗芟蚰衣对跇渲惺裁词琼敿?jí)類以及什么是子類。