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java.lang.Objectorg.apache.avalon.cornerstone.blocks.scheduler.SynchronizedPriorityQueue
A thread safe version of the PriorityQueue. Provides synchronized wrapper methods for all the methods defined in the PriorityQueue interface.
Constructor Summary | |
SynchronizedPriorityQueue(PriorityQueue priorityQueue)
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Method Summary | |
void |
clear()
Clear all elements from queue. |
void |
insert(Object element)
Insert an element into queue. |
boolean |
isEmpty()
Test if queue is empty. |
Object |
peek()
Return element on top of heap but don't remove it. |
Object |
pop()
Return element on top of heap and remove it. |
String |
toString()
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Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public SynchronizedPriorityQueue(PriorityQueue priorityQueue)
Method Detail |
public void clear()
clear
in interface PriorityQueue
public boolean isEmpty()
isEmpty
in interface PriorityQueue
public void insert(Object element)
insert
in interface PriorityQueue
element
- the element to be insertedpublic Object peek() throws NoSuchElementException
peek
in interface PriorityQueue
NoSuchElementException
- if isEmpty() == truepublic Object pop() throws NoSuchElementException
pop
in interface PriorityQueue
NoSuchElementException
- if isEmpty() == truepublic String toString()
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