QueueListener (score-queue-api 0.3.34 API)

```
public interface QueueListener
```
User: Date: 19/09/12 Time: 15:08 A listener interface for score queue events.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`onEnqueue(List<ExecutionMessage> messages, int queueSize)` A callback that will be called when messages are inserted to the queue
`void`	`onFailed(List<ExecutionMessage> messages)` A callback that will be called when messages are in status of failed
`void`	`onPersistMessage(List<ExecutionMessage> messages)` A callback that will be called when messages are required to be persisted in addition to the queue
`void`	`onPoll(List<ExecutionMessage> messages, int queueSize)` A callback that will be called when messages are polled from the queue
`void`	`onTerminated(List<ExecutionMessage> messages)` A callback that will be called when messages are in status of terminated
`void`	`prePersist(List<ExecutionMessage> messages)` A callback that will be called when messages are inserted to the queue before they are persisted to the DB

- Method Detail
  - prePersist
```
void prePersist(List<ExecutionMessage> messages)
```
    A callback that will be called when messages are inserted to the queue before they are persisted to the DB
    
    Parameters:
    messages - the messages that are inserted to the queue
  - onEnqueue
```
void onEnqueue(List<ExecutionMessage> messages,
             int queueSize)
```
    A callback that will be called when messages are inserted to the queue
    
    Parameters:
    messages - the messages that are inserted to the queue
    queueSize - the size of the inserted messages
  - onPoll
```
void onPoll(List<ExecutionMessage> messages,
          int queueSize)
```
    A callback that will be called when messages are polled from the queue
    
    Parameters:
    messages - the messages that are polled from the queue
    queueSize - the size of the polled messages
  - onTerminated
```
void onTerminated(List<ExecutionMessage> messages)
```
    A callback that will be called when messages are in status of terminated
    
    Parameters:
    messages - the terminated messages
  - onFailed
```
void onFailed(List<ExecutionMessage> messages)
```
    A callback that will be called when messages are in status of failed
    
    Parameters:
    messages - the failed messages
  - onPersistMessage
```
void onPersistMessage(List<ExecutionMessage> messages)
```
    A callback that will be called when messages are required to be persisted in addition to the queue
    
    Parameters:
    messages - the to be persisted messages

Interface QueueListener

Method Summary

Method Detail

prePersist

onEnqueue

onPoll

onTerminated

onFailed

onPersistMessage