java.lang.Object
- org.springframework.boot.actuate.metrics.repository.InMemoryMetricRepository

All Implemented Interfaces:
MetricReader, MetricRepository, CounterWriter, GaugeWriter, MetricWriter
```
public class InMemoryMetricRepository
extends Object
implements MetricRepository
```
MetricRepository implementation that stores metrics in memory.

Constructor Summary
Constructors
Constructor Description
InMemoryMetricRepository()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`long`	`count()`	The number of metrics known to this reader.
`Iterable<Metric<?>>`	`findAll()`	Find all the metrics known to this reader.
`Iterable<Metric<?>>`	`findAllWithPrefix(String prefix)`
`Metric<?>`	`findOne(String metricName)`	Find an instance of the metric with the given name (usually the latest recorded value).
`void`	`increment(Delta<?> delta)`	Increment the value of a metric (or decrement if the delta is negative).
`void`	`reset(String metricName)`	Reset the value of a metric, usually to zero value.
`void`	`set(Metric<?> value)`	Set the value of a metric.
`void`	`setValues(ConcurrentNavigableMap<String,Metric<?>> values)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - InMemoryMetricRepository
```
public InMemoryMetricRepository()
```
- Method Detail
  - setValues
```
public void setValues(ConcurrentNavigableMap<String,Metric<?>> values)
```
  - increment
```
public void increment(Delta<?> delta)
```
    Description copied from interface: CounterWriter
    Increment the value of a metric (or decrement if the delta is negative). The name of the delta is the name of the metric to increment.
    Specified by:
    increment in interface CounterWriter
    Parameters:
    delta - the amount to increment by
  - set
```
public void set(Metric<?> value)
```
    Description copied from interface: GaugeWriter
    Set the value of a metric.
    Specified by:
    set in interface GaugeWriter
    Parameters:
    value - the value
  - count
```
public long count()
```
    Description copied from interface: MetricReader
    The number of metrics known to this reader.
    Specified by:
    count in interface MetricReader
    Returns:
    the number of metrics
  - reset
```
public void reset(String metricName)
```
    Description copied from interface: CounterWriter
    Reset the value of a metric, usually to zero value. Implementations can discard the old values if desired, but may choose not to. This operation is optional (some implementations may not be able to fulfill the contract, in which case they should simply do nothing).
    Specified by:
    reset in interface CounterWriter
    Parameters:
    metricName - the name to reset
  - findOne
```
public Metric<?> findOne(String metricName)
```
    Description copied from interface: MetricReader
    Find an instance of the metric with the given name (usually the latest recorded value).
    Specified by:
    findOne in interface MetricReader
    Parameters:
    metricName - the name of the metric to find
    Returns:
    a metric value or null if there are none with that name
  - findAll
```
public Iterable<Metric<?>> findAll()
```
    Description copied from interface: MetricReader
    Find all the metrics known to this reader.
    Specified by:
    findAll in interface MetricReader
    Returns:
    all instances of metrics known to this reader
  - findAllWithPrefix
```
public Iterable<Metric<?>> findAllWithPrefix(String prefix)
```

Class InMemoryMetricRepository

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

InMemoryMetricRepository

Method Detail

setValues

increment

set

count

reset

findOne

findAll

findAllWithPrefix