DeadLetterStrategy (ActiveMQ 5.15.9 API)

All Known Implementing Classes:

AbstractDeadLetterStrategy, DiscardingDeadLetterStrategy, IndividualDeadLetterStrategy, SharedDeadLetterStrategy
```
public interface DeadLetterStrategy
```
A strategy for choosing which destination is used for dead letter queue messages.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`ActiveMQDestination`	`getDeadLetterQueueFor(Message message, Subscription subscription)` Returns the dead letter queue for the given message and subscription.
`long`	`getExpiration()`
`boolean`	`isProcessExpired()`
`boolean`	`isProcessNonPersistent()`
`boolean`	`isSendToDeadLetterQueue(Message message)` Allow pluggable strategy for deciding if message should be sent to a dead letter queue for example, you might not want to ignore expired or non-persistent messages
`void`	`rollback(Message message)` Allows for a Message that was already processed by a DLQ to be rolled back in case of a move or a retry of that message, otherwise the Message would be considered a duplicate if this strategy is doing Message Auditing.
`void`	`setExpiration(long expiration)` The expiration value to use on messages sent to the DLQ, default 0
`void`	`setProcessExpired(boolean processExpired)`
`void`	`setProcessNonPersistent(boolean processNonPersistent)`

- Method Detail
  - isSendToDeadLetterQueue
```
boolean isSendToDeadLetterQueue(Message message)
```
    Allow pluggable strategy for deciding if message should be sent to a dead letter queue for example, you might not want to ignore expired or non-persistent messages
    
    Parameters:
    
    message -
    
    Returns:
    
    true if message should be sent to a dead letter queue
  - getDeadLetterQueueFor
```
ActiveMQDestination getDeadLetterQueueFor(Message message,
                                          Subscription subscription)
```
    Returns the dead letter queue for the given message and subscription.
  - isProcessExpired
```
boolean isProcessExpired()
```
    Returns:
    
    true if processes expired messages
  - setProcessExpired
```
void setProcessExpired(boolean processExpired)
```
    Parameters:
    
    processExpired - the processExpired to set
  - isProcessNonPersistent
```
boolean isProcessNonPersistent()
```
    Returns:
    
    the processNonPersistent
  - setProcessNonPersistent
```
void setProcessNonPersistent(boolean processNonPersistent)
```
    Parameters:
    
    processNonPersistent - the processNonPersistent to set
  - rollback
```
void rollback(Message message)
```
    Allows for a Message that was already processed by a DLQ to be rolled back in case of a move or a retry of that message, otherwise the Message would be considered a duplicate if this strategy is doing Message Auditing.
    
    Parameters:
    
    message -
  - setExpiration
```
void setExpiration(long expiration)
```
    The expiration value to use on messages sent to the DLQ, default 0
  - getExpiration
```
long getExpiration()
```

Interface DeadLetterStrategy

Method Summary

Method Detail

isSendToDeadLetterQueue

getDeadLetterQueueFor

isProcessExpired

setProcessExpired

isProcessNonPersistent

setProcessNonPersistent

rollback

setExpiration

getExpiration