Package io.opencensus.metrics.export

Class Value

java.lang.Object

io.opencensus.metrics.export.Value

Direct Known Subclasses:

Value.ValueDistribution, Value.ValueDouble, Value.ValueLong, Value.ValueSummary

@ExperimentalApi
@Immutable
public abstract class Value
extends java.lang.Object

The actual point value for a Point.

Currently there are three types of Value:

• double
• long
• Distribution

Each Point contains exactly one of the three Value types.

Since:

0.17

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	Value.ValueDistribution	Value.ValueDistribution contains summary statistics for a population of values.
(package private) static class	Value.ValueDouble	A 64-bit double-precision floating-point Value.
(package private) static class	Value.ValueLong	A 64-bit integer Value.
(package private) static class	Value.ValueSummary	Value.ValueSummary contains a snapshot representing values calculated over an arbitrary time window.

Constructor Summary

Constructors

Constructor	Description
Value()

Method Summary

Modifier and Type	Method	Description
static Value	distributionValue(Distribution value)	Returns a Distribution Value.
static Value	doubleValue(double value)	Returns a double Value.
static Value	longValue(long value)	Returns a long Value.
abstract <T> T	match(Function<? super java.lang.Double,T> doubleFunction, Function<? super java.lang.Long,T> longFunction, Function<? super Distribution,T> distributionFunction, Function<? super Summary,T> summaryFunction, Function<? super Value,T> defaultFunction)	Applies the given match function to the underlying data type.
static Value	summaryValue(Summary value)	Returns a Summary Value.

Methods inherited from class java.lang.Object

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

Constructor Detail

Value

Value()

Method Detail

doubleValue

public static Value doubleValue(double value)

Returns a double Value.

Parameters:

value - value in double.

Returns:

a double Value.

Since:

0.17

longValue

public static Value longValue(long value)

Returns a long Value.

Parameters:

value - value in long.

Returns:

a long Value.

Since:

0.17

distributionValue

public static Value distributionValue(Distribution value)

Returns a Distribution Value.

Parameters:

value - value in Distribution.

Returns:

a Distribution Value.

Since:

0.17

summaryValue

public static Value summaryValue(Summary value)

Returns a Summary Value.

Parameters:

value - value in Summary.

Returns:

a Summary Value.

Since:

0.17

match

public abstract <T> T match(Function<? super java.lang.Double,T> doubleFunction,
                            Function<? super java.lang.Long,T> longFunction,
                            Function<? super Distribution,T> distributionFunction,
                            Function<? super Summary,T> summaryFunction,
                            Function<? super Value,T> defaultFunction)

Applies the given match function to the underlying data type.

Since:

0.17