ShardedDaemonProcessId.MessageExtractor

java.lang.Object
- akka.cluster.sharding.typed.ShardingMessageExtractor<ShardingEnvelope<T>,T>
- - akka.cluster.sharding.typed.internal.ShardedDaemonProcessId.MessageExtractor<T>

Enclosing class:: ShardedDaemonProcessId

public static final class ShardedDaemonProcessId.MessageExtractor<T>
extends ShardingMessageExtractor<ShardingEnvelope<T>,T>

Constructor Summary

Constructors
Constructor Description

MessageExtractor()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.String`	`entityId(ShardingEnvelope<T> message)`	Extract the entity id from an incoming `message`.
`java.lang.String`	`shardId(java.lang.String entityId)`	The shard identifier for a given entity id.
`T`	`unwrapMessage(ShardingEnvelope<T> message)`	Extract the message to send to the entity from an incoming `message`.

Methods inherited from class akka.cluster.sharding.typed.ShardingMessageExtractor
apply, noEnvelope

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

- Constructor Detail
  - MessageExtractor
```
public MessageExtractor()
```
- Method Detail
  - entityId
```
public java.lang.String entityId(ShardingEnvelope<T> message)
```
    Description copied from class: ShardingMessageExtractor
    
    Extract the entity id from an incoming message. If null is returned the message will be unhandled, i.e. posted as Unhandled messages on the event stream
    
    Specified by:
    
    entityId in class ShardingMessageExtractor<ShardingEnvelope<T>,T>
  - shardId
```
public java.lang.String shardId(java.lang.String entityId)
```
    Description copied from class: ShardingMessageExtractor
    
    The shard identifier for a given entity id. Only messages that passed the ShardingMessageExtractor.entityId(E) function will be used as input to this function.
    
    Specified by:
    
    shardId in class ShardingMessageExtractor<ShardingEnvelope<T>,T>
  - unwrapMessage
```
public T unwrapMessage(ShardingEnvelope<T> message)
```
    Description copied from class: ShardingMessageExtractor
    
    Extract the message to send to the entity from an incoming message. Note that the extracted message does not have to be the same as the incoming message to support wrapping in message envelope that is unwrapped before sending to the entity actor.
    
    Specified by:
    
    unwrapMessage in class ShardingMessageExtractor<ShardingEnvelope<T>,T>