Good naming convention for functions and methods which may modify (write back to) a parameter I need to find a good and understandable naming-scheme for routines which deal with "value arrays"(I've written something similar to C++'svalarrayin Java, with some optimizations fo...
如果已经有一个方法返回计数值,可以直接从该方法中创建类型为 FunctionCounter 的计数器,FunctionCounter使用的一个明显的好处是,我们不需要感知FunctionCounter实例的存在,实际上我们只需要操作作为FunctionCounter实例构建元素实例即可,这种接口的设计方式在很多框架里面都可以看到。 Counter counter1 = registry.counter("cou...
Function (unary function from T to R): 一元函数 r=f(t) Consumer (unary function from T to void):一元函数 f(t),无返回值 Predicate (unary function from T to boolean): 一元函数boolean r=f(t) Supplier (nilary function to R) basic function shapes, including BiFunction (binary function fr...
Function (unary function from T to R): 一元函数 r=f(t) Consumer (unary function from T to void):一元函数 f(t),无返回值 Predicate (unary function from T to boolean): 一元函数boolean r=f(t) Supplier (nilary function to R) BiFunction (binary function from T and U to R). 二元函数...
增强型for循环中的:读作in. 但是有三种情况无法使用for-each循环: 过滤删除. 转换更新. 平行迭代. 多个集合的同步位移. for-each循环可以用在任何实现了Iterable接口的对象上. 第59条 了解和使用类库 举例: 随机数的例子 -> 了解和使用类库. (Java7不使用Random, 而用ThreadLocalRandom. 另, 还有SplittableRan...
Micrometer 支持多种类型的度量器,包括Timer,Counter,Gauge,DistributionSummary,LongTaskTimer,FunctionCounter,FunctionTimer以及TimeGauge。 在Micrometer 中,通过名称和维度(dimensions,也可以称为"tags",即 API 中的Tag标签)来唯一确定一种meter。引入维度的概念便于我们对某一指标数据进行更细粒度的拆分研究。
// Valid according to Naming Convention importjava.util.regex.Matcher; importjava.util.regex.Pattern; // Driver Class publicclassVariableNameValidator { // Main Function publicstaticvoidmain(String[] args) { // Example variable names String validVariable ="myVariable123"; ...
publicvoidgaugeSet(String gaugeName,ToDoubleFunction<Object>f,Object target,String...tags){ArrayList<Tag>tagList=newArrayList<>();if(tags.length%2==1)thrownewIllegalArgumentException("Tags length is not correctly, length: "+tags.length);for(int i=0;i<tags.length;i+=2){tagList.add(Tag.of...
registry.config().namingConvention(newNamingConvention(){@OverridepublicStringname(Stringname,Meter.Typetype,StringbaseUnit){StringcamelCased=NamingConvention.snakeCase.name(name,type,baseUnit);returnbaseUnit==null?camelCased:camelCased+"_"+baseUnit;}}); ...
* function. * @param <T> The type of the state object from which the function values are * extracted. * @return A new or existing function timer. */ public <T> FunctionTimer timer(String name, Iterable<Tag> tags, T obj, ToLongFunction<T> countFunction, ...