MetricsLongValue (MapR Core Java API)

java.lang.Object
- com.mapr.org.apache.hadoop.metrics.util.MetricsBase
- - com.mapr.org.apache.hadoop.metrics.util.MetricsLongValue

Direct Known Subclasses:

MetricsIncLongValue
```
@LimitedPrivate({"HDFS","MapReduce"})
public class MetricsLongValue
extends MetricsBase
```
The MetricsLongValue class is for a metric that is not time varied but changes only when it is set. Each time its value is set, it is published only *once* at the next update call.

Field Summary
- Fields inherited from class com.mapr.org.apache.hadoop.metrics.util.MetricsBase
  NO_DESCRIPTION

Constructor Summary

Constructors
Constructor	Description
`MetricsLongValue(java.lang.String nam, MetricsRegistry registry)`	Constructor - create a new metric
`MetricsLongValue(java.lang.String nam, MetricsRegistry registry, java.lang.String description)`	Constructor - create a new metric

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`long`	`get()`	Get value
`void`	`pushMetric(MetricsRecord mr)`	Push the metric to the mr.
`void`	`set(long newValue)`	Set the value

Methods inherited from class com.mapr.org.apache.hadoop.metrics.util.MetricsBase
getDescription, getName

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

- Constructor Detail
  - MetricsLongValue
```
public MetricsLongValue(java.lang.String nam,
                        MetricsRegistry registry,
                        java.lang.String description)
```
    Constructor - create a new metric
    
    Parameters:
    
    nam - the name of the metrics to be used to publish the metric
    
    registry - - where the metrics object will be registered
  - MetricsLongValue
```
public MetricsLongValue(java.lang.String nam,
                        MetricsRegistry registry)
```
    Constructor - create a new metric
    
    Parameters:
    
    nam - the name of the metrics to be used to publish the metric
    
    registry - - where the metrics object will be registered A description of MetricsBase.NO_DESCRIPTION is used
- Method Detail
  - set
```
public void set(long newValue)
```
    Set the value
    
    Parameters:
    
    newValue -
  - get
```
public long get()
```
    Get value
    
    Returns:
    
    the value last set
  - pushMetric
```
public void pushMetric(MetricsRecord mr)
```
    Push the metric to the mr. The metric is pushed only if it was updated since last push Note this does NOT push to JMX (JMX gets the info via get()
    
    Specified by:
    
    pushMetric in class MetricsBase
    
    Parameters:
    
    mr -