io.opencensus.stats

Class MeasureMap

java.lang.Object

io.opencensus.stats.MeasureMap

@NotThreadSafe
public abstract class MeasureMap
extends Object

A map from Measures to measured values to be recorded at the same time.

Since:

0.8

Constructor Summary

Constructors

Constructor and Description
MeasureMap()

Method Summary

Modifier and Type	Method and Description
abstract MeasureMap	put(Measure.MeasureDouble measure, double value) Associates the Measure.MeasureDouble with the given value.
abstract MeasureMap	put(Measure.MeasureLong measure, long value) Associates the Measure.MeasureLong with the given value.
MeasureMap	putAttachment(String key, String value) Associate the contextual information of an Exemplar to this MeasureMap.
abstract void	record() Records all of the measures at the same time, with the current TagContext.
abstract void	record(TagContext tags) Records all of the measures at the same time, with an explicit TagContext.

Methods inherited from class java.lang.Object

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

Constructor Detail

MeasureMap

public MeasureMap()

Method Detail

put

public abstract MeasureMap put(Measure.MeasureDouble measure,
                               double value)

Associates the Measure.MeasureDouble with the given value. Subsequent updates to the same Measure.MeasureDouble will overwrite the previous value.

Parameters:

measure - the Measure.MeasureDouble

value - the value to be associated with measure

Returns:

this

Since:

0.8

put

public abstract MeasureMap put(Measure.MeasureLong measure,
                               long value)

Associates the Measure.MeasureLong with the given value. Subsequent updates to the same Measure.MeasureLong will overwrite the previous value.

Parameters:

measure - the Measure.MeasureLong

value - the value to be associated with measure

Returns:

this

Since:

0.8

putAttachment

public MeasureMap putAttachment(String key,
                                String value)

Associate the contextual information of an Exemplar to this MeasureMap. Contextual information is represented as String key-value pairs.

If this method is called multiple times with the same key, only the last value will be kept.

Parameters:

key - the key of contextual information of an Exemplar.

value - the string representation of contextual information of an Exemplar.

Returns:

this

Since:

0.16

record

public abstract void record()

Records all of the measures at the same time, with the current TagContext.

This method records all of the stats in the MeasureMap every time it is called.

Since:

0.8

record

public abstract void record(TagContext tags)

Records all of the measures at the same time, with an explicit TagContext.

This method records all of the stats in the MeasureMap every time it is called.

Parameters:

tags - the tags associated with the measurements.

Since:

0.8