ScheduleQueue (Hazelcast Root 3.5 API)

All Known Implementing Classes:

DefaultScheduleQueue
```
public interface ScheduleQueue
```
The ScheduleQueue is a kind of priority queue where 'tasks' are queued for scheduling.
Implementations must support Multiple-Producer Multiple-Consumers scenario as multiple GenericOperationThread share a single queue.
The ScheduledQueue also support priority tasks; so if a task with a priority comes in, than that one is taken before any other normal operation is taken.
The ordering between normal tasks will always be FIFO. And the same goes for the ordering between priority tasks, but there is no ordering guarantee between priority and normal tasks.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`add(Object task)` Adds an task with normal priority to this queue.
`void`	`addUrgent(Object task)` Adds an task with normal priority to this queue.
`int`	`normalSize()` returns the number of normal operations pending.
`int`	`prioritySize()` returns the number of priority operations pending.
`int`	`size()` Returns the total number of pending operations.
`Object`	`take()` Takes an item from this queue.

- Method Detail
  - add
```
void add(Object task)
```
    Adds an task with normal priority to this queue.
    This method is thread safe.
    
    Parameters:
    task - the item to add
    
    Throws:
    
    NullPointerException - if task is null
  - addUrgent
```
void addUrgent(Object task)
```
    Adds an task with normal priority to this queue.
    This method is thread safe.
    
    Parameters:
    task - the item to add
    
    Throws:
    
    NullPointerException - if task is null
  - take
```
Object take()
            throws InterruptedException
```
    Takes an item from this queue. If no item is available, the call blocks.
    This method should always be called by the same thread.
    
    Returns:
    the taken item.
    
    Throws:
    
    InterruptedException - if the thread is interrupted while waiting.
  - normalSize
```
int normalSize()
```
    returns the number of normal operations pending.
    This method is thread safe. This method returns a best effort value and should only be used for monitoring purposes.
    
    Returns:
    the number of normal pending operations.
  - prioritySize
```
int prioritySize()
```
    returns the number of priority operations pending.
    This method is thread safe. This method returns a best effort value and should only be used for monitoring purposes.
    
    Returns:
    the number of priority pending operations.
  - size
```
int size()
```
    Returns the total number of pending operations.
    This method is thread safe. This method returns a best effort value and should only be used for monitoring purposes.
    
    Returns:
    the total number of pending operations.

Interface ScheduleQueue

Method Summary

Method Detail

add

addUrgent

take

normalSize

prioritySize

size