Class AttributeValue

java.lang.Object

io.opencensus.trace.AttributeValue

Direct Known Subclasses:

AttributeValue.AttributeValueBoolean, AttributeValue.AttributeValueDouble, AttributeValue.AttributeValueLong, AttributeValue.AttributeValueString

@Immutable
public abstract class AttributeValue
extends Object

A class that represents all the possible values for an attribute. An attribute can have 3 types of values: String, Boolean or Long.

Since:

0.5

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	AttributeValue.AttributeValueBoolean
(package private) static class	AttributeValue.AttributeValueDouble
(package private) static class	AttributeValue.AttributeValueLong
(package private) static class	AttributeValue.AttributeValueString

Constructor Summary

Constructors

Constructor	Description
AttributeValue()

Method Summary

Modifier and Type	Method	Description
static AttributeValue	booleanAttributeValue(boolean booleanValue)	Returns an AttributeValue with a boolean value.
static AttributeValue	doubleAttributeValue(double doubleValue)	Returns an AttributeValue with a double value.
static AttributeValue	longAttributeValue(long longValue)	Returns an AttributeValue with a long value.
abstract <T> T	match(Function<? super String, T> stringFunction, Function<? super Boolean, T> booleanFunction, Function<? super Long, T> longFunction, Function<? super Double, T> doubleFunction, Function<Object,T> defaultFunction)	Applies a function to the underlying value.
abstract <T> T	match(Function<? super String, T> stringFunction, Function<? super Boolean, T> booleanFunction, Function<? super Long, T> longFunction, Function<Object,T> defaultFunction)	Deprecated. in favor of match(Function, Function, Function, Function, Function).
static AttributeValue	stringAttributeValue(String stringValue)	Returns an AttributeValue with a string value.

Methods inherited from class Object

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

Constructor Details

AttributeValue

AttributeValue()

Method Details

stringAttributeValue

public static AttributeValue stringAttributeValue(String stringValue)

Returns an AttributeValue with a string value.

Parameters:

stringValue - The new value.

Returns:

an AttributeValue with a string value.

Throws:

NullPointerException - if stringValue is null.

Since:

0.5

booleanAttributeValue

public static AttributeValue booleanAttributeValue(boolean booleanValue)

Returns an AttributeValue with a boolean value.

Parameters:

booleanValue - The new value.

Returns:

an AttributeValue with a boolean value.

Since:

0.5

longAttributeValue

public static AttributeValue longAttributeValue(long longValue)

Returns an AttributeValue with a long value.

Parameters:

longValue - The new value.

Returns:

an AttributeValue with a long value.

Since:

0.5

doubleAttributeValue

public static AttributeValue doubleAttributeValue(double doubleValue)

Returns an AttributeValue with a double value.

Parameters:

doubleValue - The new value.

Returns:

an AttributeValue with a double value.

Since:

0.17

match

@Deprecated
public abstract <T> T match(Function<? super String, T> stringFunction,
 Function<? super Boolean, T> booleanFunction,
 Function<? super Long, T> longFunction,
 Function<Object,T> defaultFunction)

Deprecated.

in favor of match(Function, Function, Function, Function, Function).

Applies a function to the underlying value. The function that is called depends on the value's type, which can be String, Long, or Boolean.

Parameters:

stringFunction - the function that should be applied if the value has type String.

booleanFunction - the function that should be applied if the value has type Boolean.

longFunction - the function that should be applied if the value has type Long.

defaultFunction - the function that should be applied if the value has a type that was added after this match method was added to the API. See Functions for some common functions for handling unknown types.

Returns:

the result of the function applied to the underlying value.

Since:

0.5

match

public abstract <T> T match(Function<? super String, T> stringFunction,
 Function<? super Boolean, T> booleanFunction,
 Function<? super Long, T> longFunction,
 Function<? super Double, T> doubleFunction,
 Function<Object,T> defaultFunction)

Applies a function to the underlying value. The function that is called depends on the value's type, which can be String, Long, or Boolean.

Parameters:

stringFunction - the function that should be applied if the value has type String.

booleanFunction - the function that should be applied if the value has type Boolean.

longFunction - the function that should be applied if the value has type Long.

doubleFunction - the function that should be applied if the value has type Double.

defaultFunction - the function that should be applied if the value has a type that was added after this match method was added to the API. See Functions for some common functions for handling unknown types.

Returns:

the result of the function applied to the underlying value.

Since:

0.17