QueueDao (db-queue-core 15.1.0 API)

```
public interface QueueDao
```
Database access object to manage tasks in the queue.

Since:

06.10.2019

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`deleteTask(QueueLocation location, long taskId)`	Remove (delete) task from the queue.
`long`	`enqueue(QueueLocation location, EnqueueParams<java.lang.String> enqueueParams)`	Add a new task in the queue for processing.
`boolean`	`reenqueue(QueueLocation location, long taskId, java.time.Duration executionDelay)`	Postpone task processing for given time period (current date and time plus execution delay).

- Method Detail
  - enqueue
```
long enqueue(@Nonnull
             QueueLocation location,
             @Nonnull
             EnqueueParams<java.lang.String> enqueueParams)
```
    Add a new task in the queue for processing.
    
    Parameters:
    
    location - Queue location.
    
    enqueueParams - Parameters of the task
    
    Returns:
    
    Identifier (sequence id) of new inserted task.
  - deleteTask
```
boolean deleteTask(@Nonnull
                   QueueLocation location,
                   long taskId)
```
    Remove (delete) task from the queue.
    
    Parameters:
    
    location - Queue location.
    
    taskId - Identifier (sequence id) of the task.
    
    Returns:
    
    true, if task was deleted from database, false, when task with given id was not found.
  - reenqueue
```
boolean reenqueue(@Nonnull
                  QueueLocation location,
                  long taskId,
                  @Nonnull
                  java.time.Duration executionDelay)
```
    Postpone task processing for given time period (current date and time plus execution delay).
    
    Parameters:
    
    location - Queue location.
    
    taskId - Identifier (sequence id) of the task.
    
    executionDelay - Task execution delay.
    
    Returns:
    
    true, if task was successfully postponed, false, when task was not found.