Class ClusterCommandExecutor.NodeResult<T>

java.lang.Object

org.springframework.data.redis.connection.ClusterCommandExecutor.NodeResult<T>

Type Parameters:

T - Type of the value returned in the result.

Enclosing class:

ClusterCommandExecutor

public static class ClusterCommandExecutor.NodeResult<T>
extends Object

ClusterCommandExecutor.NodeResult encapsulates the actual value returned by a ClusterCommandExecutor.ClusterCommandCallback on a given RedisClusterNode.

Since:

1.7

Author:

Christoph Strobl, John Blum

Constructor Summary

Constructors

Constructor	Description
NodeResult(RedisClusterNode node, @Nullable T value)	Create a new ClusterCommandExecutor.NodeResult.
NodeResult(RedisClusterNode node, @Nullable T value, byte[] key)	Create a new ClusterCommandExecutor.NodeResult.

Method Summary

Modifier and Type	Method	Description
boolean	equals(@Nullable Object obj)
byte[]	getKey()	Return the byte[] key mapped to the value stored in Redis.
RedisClusterNode	getNode()	Get the RedisClusterNode the command was executed on.
T	getRequiredValue()	Get the actual value of the command execution or raise an error if null.
@Nullable T	getValue()	Get the actual value of the command execution.
int	hashCode()
<U> @Nullable U	mapValue(Function<? super T, ? extends U> mapper)	Apply the mapper function to the value and return the mapped value.

Methods inherited from class Object

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

Constructor Details

NodeResult

public NodeResult(RedisClusterNode node,
 @Nullable T value)

Create a new ClusterCommandExecutor.NodeResult.

Parameters:

node - must not be null.

value - can be null.

NodeResult

public NodeResult(RedisClusterNode node,
 @Nullable T value,
 byte[] key)

Create a new ClusterCommandExecutor.NodeResult.

Parameters:

node - must not be null.

value - can be null.

key - must not be null.

Method Details

getNode

public RedisClusterNode getNode()

Get the RedisClusterNode the command was executed on.

Returns:

never null.

getKey

public byte[] getKey()

Return the byte[] key mapped to the value stored in Redis.

Returns:

a byte[] byte array of the key mapped to the value stored in Redis.

getValue

public @Nullable T getValue()

Get the actual value of the command execution.

Returns:

can be null.

getRequiredValue

public T getRequiredValue()

Get the actual value of the command execution or raise an error if null.

Returns:

can be null.

Throws:

IllegalArgumentException - in case the value is null.

Since:

4.0

mapValue

public <U> @Nullable U mapValue(Function<? super T, ? extends U> mapper)

Apply the mapper function to the value and return the mapped value.

Type Parameters:

U - type of the mapped value.

Parameters:

mapper - must not be null.

Returns:

the mapped value.

Since:

2.1

equals

public boolean equals(@Nullable Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object