之前的文章《浅析EOS区块链柚子钱包前端插件scatter开发(分享)》中,给大家了解了区块链中EOS钱包前端插件scatter开发。下面本篇文章给大家了解java.util.function.*pojo反射新方法,伙伴们来看看一下。
上代码,看例子
写一个普通的POJO
public class City { private String name; private String code; public City() { } public City(String name, String code) { this.name = name; this.code = code; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getCode() { return code; } public void setCode(String code) { this.code = code; } }
传统的方式
// Use a constructor with parameters to create a City City sf = new City("San Francisco", "SF"); // Use a default constructor with no parameters to create a City City la = new City(); // Set the members using setters la.setName("Los Angeles"); la.setCode("LA");
新的getter访问方式
// Use the City's method references and assign them to functions Function<City, String> getNameFunction = City::getName; Function<City, String> getCodeFunction = City::getCode; System.out.println("The code for " + getNameFunction.apply(sf) + " is " + getCodeFunction.apply(sf)); -> The code for San Francisco is SF
新的setter访问方式
// Use the City's method references and assign them to biconsumers BiConsumer<City, String> setNameBiConsumer = City::setName; BiConsumer<City, String> setCodeBiConsumer = City::setCode; City ny = new City(); setNameBiConsumer.accept(ny, "New York"); setCodeBiConsumer.accept(ny, "NY");
访问 constructor 创建新实例
// Use the City's constructor method reference to create // a default constructor reference. Supplier<City> defaultConstructor = City::new; City sd = defaultConstructor.get(); sd.setName("San Diego"); sd.setCode("SD");
带参数的构建器
// Use the City's constructor method reference to create // a two-parameter constructor reference. BiFunction<String, String, City> twoParameterConstructor = City::new; City dc = twoParameterConstructor.apply("Washington, D. C.", "DC");
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