KV (Azkarra Framework 0.9.0 API)

java.lang.Object
- io.streamthoughts.azkarra.api.model.KV<K,V>

Type Parameters:

K - the key type.

V - the value type.

All Implemented Interfaces:

Serializable, Comparable<KV<K,V>>
```
public class KV<K,V>
extends Object
implements Comparable<KV<K,V>>, Serializable
```
Simple key/value pair.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

KV(K key, V value)
Creates a new KV instance.

KV(K key, V value, Long timestamp)
Creates a new KV instance.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`compareTo(KV<K,V> that)`
`boolean`	`equals(Object o)`
`int`	`hashCode()`
`boolean`	`isNullKey()`
`K`	`key()`
`Optional<K>`	`nullableKey()`
`Optional<V>`	`nullableValue()`
`static <K,V> KV<K,V>`	`of(K key, V value)`
`static <K,V> KV<K,V>`	`of(K key, V value, Long timestamp)`
`static <K,V> KV<K,V>`	`of(org.apache.kafka.streams.KeyValue<K,V> kv)`
`KV<V,K>`	`swap()`	Swaps the key and value.
`Long`	`timestamp()`
`org.apache.kafka.streams.KeyValue<K,V>`	`toKafkaKeyValue()`
`String`	`toString()`
`V`	`value()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail
- KV
```
public KV(K key,
          V value)
```
  Creates a new KV instance.
  
  Parameters:
  
  key - the record key.
  
  value - the record value.
- KV
```
public KV(K key,
          V value,
          Long timestamp)
```
  Creates a new KV instance.
  
  Parameters:
  
  key - the record key.
  
  value - the record value.
  
  timestamp - the record timestamp, can be null.

Method Detail

of

public static <K,V> KV<K,V> of(K key,
                                           V value)

of

public static <K,V> KV<K,V> of(K key,
                                           V value,
                                           Long timestamp)

of

public static <K,V> KV<K,V> of(org.apache.kafka.streams.KeyValue<K,V> kv)

nullableKey
```
public Optional<K> nullableKey()
```

key
```
public K key()
```

nullableValue
```
public Optional<V> nullableValue()
```

value
```
public V value()
```

timestamp
```
public Long timestamp()
```

toKafkaKeyValue

public org.apache.kafka.streams.KeyValue<K,V> toKafkaKeyValue()

equals
```
public boolean equals(Object o)
```
Overrides:

equals in class Object

isNullKey
```
public boolean isNullKey()
```

swap
```
public KV<V,K> swap()
```
Swaps the key and value.

Returns:

hashCode
```
public int hashCode()
```
Overrides:

hashCode in class Object

toString
```
public String toString()
```
Overrides:

toString in class Object

compareTo
```
public int compareTo(KV<K,V> that)
```
Specified by:

compareTo in interface Comparable<K>