Package io.micrometer.common

Class KeyValues

java.lang.Object

io.micrometer.common.KeyValues

All Implemented Interfaces:

Iterable<KeyValue>

public final class KeyValues
extends Object
implements Iterable<KeyValue>

An immutable collection of KeyValues that are guaranteed to be sorted and deduplicated by key.

Since:

1.10.0

Method Summary

Modifier and Type	Method	Description
KeyValues	and(KeyValue @Nullable ... keyValues)	Return a new KeyValues instance by merging this collection and the specified key values.
KeyValues	and(@Nullable Iterable<? extends KeyValue> keyValues)	Return a new KeyValues instance by merging this collection and the specified key values.
<E> KeyValues	and(@Nullable Iterable<E> elements, Function<E,String> keyExtractor, Function<E,String> valueExtractor)	Return a new KeyValues instance by merging this collection and the key values extracted from the given elements.
KeyValues	and(String @Nullable ... keyValues)	Return a new KeyValues instance by merging this collection and the specified key/value pairs.
KeyValues	and(String key, String value)	Return a new KeyValues instance by merging this collection and the specified key/value pair.
static KeyValues	concat(@Nullable Iterable<? extends KeyValue> keyValues, @Nullable Iterable<? extends KeyValue> otherKeyValues)	Return a new KeyValues instance by concatenating the specified collections of key values.
static KeyValues	concat(@Nullable Iterable<? extends KeyValue> keyValues, String @Nullable ... otherKeyValues)	Return a new KeyValues instance by concatenating the specified key values and key/value pairs.
static KeyValues	empty()	Return a KeyValues instance that contains no elements.
boolean	equals(@Nullable Object obj)
int	hashCode()
Iterator<KeyValue>	iterator()
static KeyValues	of(KeyValue @Nullable ... keyValues)	Return a new KeyValues instance containing key values constructed from the specified key values.
static KeyValues	of(@Nullable Iterable<? extends KeyValue> keyValues)	Return a new KeyValues instance containing key values constructed from the specified source key values.
static <E> KeyValues	of(@Nullable Iterable<E> elements, Function<E,String> keyExtractor, Function<E,String> valueExtractor)	Return a new KeyValues instance containing key values extracted from the given elements.
static KeyValues	of(String @Nullable ... keyValues)	Return a new KeyValues instance containing key values constructed from the specified key/value pairs.
static KeyValues	of(String key, String value)	Return a new KeyValues instance containing key value constructed from the specified key/value pair.
Spliterator<KeyValue>	spliterator()
Stream<KeyValue>	stream()	Return a stream of the contained key values.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach

Method Details

and

public KeyValues and(String key,
 String value)

Return a new KeyValues instance by merging this collection and the specified key/value pair.

Parameters:

key - the key to add

value - the value to add

Returns:

a new KeyValues instance

and

public KeyValues and(String @Nullable ... keyValues)

Return a new KeyValues instance by merging this collection and the specified key/value pairs.

Parameters:

keyValues - the key/value pairs to add, elements mustn't be null

Returns:

a new KeyValues instance

and

public KeyValues and(KeyValue @Nullable ... keyValues)

Return a new KeyValues instance by merging this collection and the specified key values.

Parameters:

keyValues - the key values to add, elements mustn't be null

Returns:

a new KeyValues instance

and

public <E> KeyValues and(@Nullable Iterable<E> elements,
 Function<E,String> keyExtractor,
 Function<E,String> valueExtractor)

Return a new KeyValues instance by merging this collection and the key values extracted from the given elements.

Parameters:

elements - the source elements

keyExtractor - function to extract the key from the element

valueExtractor - function to extract the value from the element

Returns:

a new KeyValues instance

and

public KeyValues and(@Nullable Iterable<? extends KeyValue> keyValues)

Return a new KeyValues instance by merging this collection and the specified key values.

Parameters:

keyValues - the key values to add, elements mustn't be null

Returns:

a new KeyValues instance

iterator

public Iterator<KeyValue> iterator()

Specified by:

iterator in interface Iterable<KeyValue>

spliterator

public Spliterator<KeyValue> spliterator()

Specified by:

spliterator in interface Iterable<KeyValue>

stream

public Stream<KeyValue> stream()

Return a stream of the contained key values.

Returns:

a key value stream

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(@Nullable Object obj)

Overrides:

equals in class Object

concat

public static KeyValues concat(@Nullable Iterable<? extends KeyValue> keyValues,
 @Nullable Iterable<? extends KeyValue> otherKeyValues)

Return a new KeyValues instance by concatenating the specified collections of key values.

Parameters:

keyValues - the first set of key values, elements mustn't be null

otherKeyValues - the second set of key values, elements mustn't be null

Returns:

the merged key values

concat

public static KeyValues concat(@Nullable Iterable<? extends KeyValue> keyValues,
 String @Nullable ... otherKeyValues)

Return a new KeyValues instance by concatenating the specified key values and key/value pairs.

Parameters:

keyValues - the first set of key values, elements mustn't be null

otherKeyValues - the additional key/value pairs to add, elements mustn't be null

Returns:

the merged key values

of

public static <E> KeyValues of(@Nullable Iterable<E> elements,
 Function<E,String> keyExtractor,
 Function<E,String> valueExtractor)

Return a new KeyValues instance containing key values extracted from the given elements.

Parameters:

elements - the source elements

keyExtractor - function to extract the key from the element

valueExtractor - function to extract the value from the element

Returns:

a new KeyValues instance

of

public static KeyValues of(@Nullable Iterable<? extends KeyValue> keyValues)

Return a new KeyValues instance containing key values constructed from the specified source key values.

Parameters:

keyValues - the key values to add, elements mustn't be null

Returns:

a new KeyValues instance

of

public static KeyValues of(String key,
 String value)

Return a new KeyValues instance containing key value constructed from the specified key/value pair.

Parameters:

key - the key to add

value - the value to add

Returns:

a new KeyValues instance

of

public static KeyValues of(String @Nullable ... keyValues)

Return a new KeyValues instance containing key values constructed from the specified key/value pairs.

Parameters:

keyValues - the key/value pairs to add, elements mustn't be null

Returns:

a new KeyValues instance

of

public static KeyValues of(KeyValue @Nullable ... keyValues)

Return a new KeyValues instance containing key values constructed from the specified key values.

Parameters:

keyValues - the key values to add, elements mustn't be null

Returns:

a new KeyValues instance

empty

public static KeyValues empty()

Return a KeyValues instance that contains no elements.

Returns:

an empty KeyValues instance

toString

public String toString()

Overrides:

toString in class Object