NoopRegistry (lookout-api 1.4.4 API)

java.lang.Object
- com.alipay.lookout.api.NoopRegistry

所有已实现的接口:

Registry, Iterable<Metric>
```
public final class NoopRegistry
extends Object
implements Registry
```
Registry implementation that does nothing. Created by kevin.luy@alipay.com on 2017/2/14.

字段概要

字段
限定符和类型字段和说明

static NoopRegistry INSTANCE

字段
限定符和类型	字段和说明
`static NoopRegistry`	`INSTANCE`

方法概要

方法
限定符和类型	方法和说明
`Clock`	`clock()` The clock used by the registry for timing events.
`Counter`	`counter(Id id)` Measures the rate of some activity.
`Id`	`createId(String name)` Generate an identifier for a metric.
`Id`	`createId(String name, Iterable<Tag> tags)` Generate an identifier for a metric.
`Id`	`createId(String name, Map<String,String> tags)`
`DistributionSummary`	`distributionSummary(Id id)` Measures the rate and variation in amount for some activity.
`<T extends Number> Gauge<T>`	`gauge(Id id, Gauge<T> gauge)` Register a gauge instance
`Metric`	`get(Id id)` Returns the metric associated with a given id.
`<I,Y extends Info<I>> Info`	`info(Id id, Y info)` Register a info instance
`Iterator<Metric>`	`iterator()` Iterator for traversing the set of metrics in the registry.
`MixinMetric`	`mixinMetric(Id id)` Generate a mixinMetric
`void`	`propagate(String msg, Throwable t)` propagate a exception
`void`	`register(Metric metric)` Add a custom metric to the registry.
`void`	`removeMetric(Id id)` Remove a metric by id.
`Timer`	`timer(Id id)` Measures the rate and time taken for short running tasks.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - INSTANCE
```
public static final NoopRegistry INSTANCE
```
- 方法详细资料
  - clock
```
public Clock clock()
```
    从接口复制的说明: Registry
    
    The clock used by the registry for timing events.
    
    指定者:
    
    clock 在接口中 Registry
    
    返回:
    clock
  - createId
```
public Id createId(String name)
```
    从接口复制的说明: Registry
    
    Generate an identifier for a metric.
    
    指定者:
    
    createId 在接口中 Registry
    
    参数:
    name - the name of an metric identifier.
    
    返回:
    id
  - createId
```
public Id createId(String name,
          Iterable<Tag> tags)
```
    从接口复制的说明: Registry
    
    Generate an identifier for a metric.
    
    指定者:
    
    createId 在接口中 Registry
    
    参数:
    name - the name of an metric identifier.
    tags - the tags of an metric identifier.
    
    返回:
    id
  - register
```
public void register(Metric metric)
```
    从接口复制的说明: Registry
    
    Add a custom metric to the registry.
    caution: if the same id is already existed,then throw duplicate exception
    
    指定者:
    
    register 在接口中 Registry
    
    参数:
    metric - metric
  - gauge
```
public <T extends Number> Gauge<T> gauge(Id id,
                                Gauge<T> gauge)
```
    从接口复制的说明: Registry
    
    Register a gauge instance
    
    指定者:
    
    gauge 在接口中 Registry
    
    类型参数:
    T - return old one;if this id first register gauge ,return null
    参数:
    id - metric id
    gauge - gauge
    
    返回:
    gauge
  - info
```
public <I,Y extends Info<I>> Info info(Id id,
                              Y info)
```
    从接口复制的说明: Registry
    
    Register a info instance
    
    指定者:
    
    info 在接口中 Registry
    
    参数:
    id - metric id
    info - an info instance
    
    返回:
  - propagate
```
public void propagate(String msg,
             Throwable t)
```
    从接口复制的说明: Registry
    
    propagate a exception
    
    指定者:
    
    propagate 在接口中 Registry
    
    参数:
    msg - the exception message
    t - the exception
  - createId
```
public Id createId(String name,
          Map<String,String> tags)
```
    指定者:
    
    createId 在接口中 Registry
  - counter
```
public Counter counter(Id id)
```
    从接口复制的说明: Registry
    
    Measures the rate of some activity. A counter is for continuously incrementing sources like the number of requests that are coming into a server.
    
    指定者:
    
    counter 在接口中 Registry
    
    参数:
    id - metric id
    
    返回:
    counter
  - distributionSummary
```
public DistributionSummary distributionSummary(Id id)
```
    从接口复制的说明: Registry
    
    Measures the rate and variation in amount for some activity. For example, it could be used to get insight into the variation in response sizes for requests to a server.
    
    指定者:
    
    distributionSummary 在接口中 Registry
    
    参数:
    id - metric id
    
    返回:
    DistributionSummary
  - timer
```
public Timer timer(Id id)
```
    从接口复制的说明: Registry
    
    Measures the rate and time taken for short running tasks.
    
    指定者:
    
    timer 在接口中 Registry
    
    参数:
    id - metric id
    
    返回:
    timer
  - get
```
public Metric get(Id id)
```
    从接口复制的说明: Registry
    
    Returns the metric associated with a given id.
    if reaching the max number,null will be returned too.
    
    指定者:
    
    get 在接口中 Registry
    
    参数:
    id - metric id
    
    返回:
    Instance of the metric or null if there is no match.
  - iterator
```
public Iterator<Metric> iterator()
```
    从接口复制的说明: Registry
    
    Iterator for traversing the set of metrics in the registry.
    
    指定者:
    
    iterator 在接口中 Registry
    
    指定者:
    
    iterator 在接口中 Iterable<Metric>
  - removeMetric
```
public void removeMetric(Id id)
```
    从接口复制的说明: Registry
    
    Remove a metric by id.
    
    指定者:
    
    removeMetric 在接口中 Registry
    
    参数:
    id - metric id
  - mixinMetric
```
public MixinMetric mixinMetric(Id id)
```
    从接口复制的说明: Registry
    
    Generate a mixinMetric
    
    指定者:
    
    mixinMetric 在接口中 Registry
    
    参数:
    id - metric id
    
    返回:
    a mixinMetric instance

类 NoopRegistry

字段概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

INSTANCE

方法详细资料

clock

createId

createId

register

gauge

info

propagate

createId

counter

distributionSummary

timer

get

iterator

removeMetric

mixinMetric