Metric (Solr 7.7.0 API)

java.lang.Object
- org.apache.solr.client.solrj.io.stream.metrics.Metric

All Implemented Interfaces:

Expressible

Direct Known Subclasses:

CountMetric, MaxMetric, MeanMetric, MinMetric, SumMetric
```
public abstract class Metric
extends Object
implements Expressible
```

Field Summary

Fields
Modifier and Type Field Description

boolean outputLong

Constructor Summary

Constructors
Constructor Description

Metric()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract String[]`	`getColumns()`
`String`	`getFunctionName()`
`String`	`getIdentifier()`
`UUID`	`getMetricNodeId()`
`abstract Number`	`getValue()`
`abstract Metric`	`newInstance()`
`void`	`setFunctionName(String functionName)`
`void`	`setIdentifier(String identifier)`
`void`	`setIdentifier(String... identifierParts)`
`Explanation`	`toExplanation(StreamFactory factory)`	Returns an explanation about the stream object
`abstract void`	`update(Tuple tuple)`

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

Methods inherited from interface org.apache.solr.client.solrj.io.stream.expr.Expressible
toExpression

Field Detail
- outputLong
```
public boolean outputLong
```

Constructor Detail
- Metric
```
public Metric()
```

Method Detail

getFunctionName
```
public String getFunctionName()
```

setFunctionName

public void setFunctionName(String functionName)

getIdentifier
```
public String getIdentifier()
```

setIdentifier

public void setIdentifier(String identifier)

setIdentifier

public void setIdentifier(String... identifierParts)

toExplanation
```
public Explanation toExplanation(StreamFactory factory)
                          throws IOException
```
Description copied from interface: Expressible

Returns an explanation about the stream object

Specified by:

toExplanation in interface Expressible

Parameters:

factory - Stream factory for this, contains information about the function name

Returns:

Explanation about this stream object containing explanations of any child stream objects

Throws:

IOException - throw on any error

getMetricNodeId
```
public UUID getMetricNodeId()
```

getValue
```
public abstract Number getValue()
```

update

public abstract void update(Tuple tuple)

newInstance
```
public abstract Metric newInstance()
```

getColumns
```
public abstract String[] getColumns()
```