org.apache.solr.client.solrj.io.stream.metrics

Class CountMetric

java.lang.Object

org.apache.solr.client.solrj.io.stream.metrics.Metric

org.apache.solr.client.solrj.io.stream.metrics.CountMetric

All Implemented Interfaces:

Expressible

public class CountMetric
extends Metric

Field Summary

Fields inherited from class org.apache.solr.client.solrj.io.stream.metrics.Metric

outputLong

Constructor Summary

Constructors

Constructor and Description
CountMetric()
CountMetric(StreamExpression expression, StreamFactory factory)
CountMetric(String columnName)

Method Summary

Modifier and Type	Method and Description
String[]	getColumns()
Long	getValue()
Metric	newInstance()
StreamExpressionParameter	toExpression(StreamFactory factory)
void	update(Tuple tuple)

Methods inherited from class org.apache.solr.client.solrj.io.stream.metrics.Metric

getFunctionName, getIdentifier, getMetricNodeId, setFunctionName, setIdentifier, setIdentifier, toExplanation

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CountMetric

public CountMetric()

CountMetric

public CountMetric(String columnName)

CountMetric

public CountMetric(StreamExpression expression,
                   StreamFactory factory)
            throws IOException

Throws:

IOException

Method Detail

getColumns

public String[] getColumns()

Specified by:

getColumns in class Metric

update

public void update(Tuple tuple)

Specified by:

update in class Metric

getValue

public Long getValue()

Specified by:

getValue in class Metric

newInstance

public Metric newInstance()

Specified by:

newInstance in class Metric

toExpression

public StreamExpressionParameter toExpression(StreamFactory factory)
                                       throws IOException

Throws:

IOException