如何在单个集合中表示泛型类型?
public interface Rule<T> {
String execute(T dataProvider);
}
public interface DataProvider {
// No common functions as of now
}
public class RulesExecutor {
private Map<String, List<Rule>> documentToRuleListMap;
public RulesExecutor(Map<String, List<Rule>> documentToRuleListMap) {
this.documentToRuleListMap = documentToRuleListMap;
}
public executeRules(DataProvider dataProvider, String document) {
// some logic here
}
}
是否可以存储
RulesExecutor
构造函数中所示的映射?如果不是,存储此信息的正确数据结构是什么?
最佳答案
是否可以存储RulesExecutor构造函数中所示的地图?如果不是,什么是正确的数据结构来存储此信息?
当然:
public interface Rule<T> {
String execute(T dataProvider)
}
public interface DataProvider {
}
class RulesExecutor<T extends DataProvider> {
public RulesExecutor(Map<String, List<Rule<T>>> documentToRuleListMap) {
}
public void executeRules(T dataProvider) {
// some logic here
};
}
请注意,由于粗心的错误,您发布的代码将无法编译:
public interface Rule<T> {
String execute(T dataProvider) // *** missing semicolon
}
public interface DataProvider {
}
public class RulesExecutor() { // *** class declarations have no parenthesis
发布代码时请多加注意,并确保发布真实代码,而不是同类代码。它使您更容易理解问题并在执行操作时获得帮助。