Java Doc for PriorityQueue.java in  » Web-Crawler » WebSPHINX » rcm » util » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Crawler » WebSPHINX » rcm.util   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    rcm.util.PriorityQueue PriorityQueue public class PriorityQueue (Code) Priority queue. Objects stored in a priority queue must implement the Prioritized interface. Constructor Summary public   PriorityQueue()      Make an empty PriorityQueue. public   PriorityQueue(int initialCapacity)      Make an empty PriorityQueue with an initial capacity. Method Summary public synchronized  void clear()      Remove all objects from queue. public synchronized  boolean delete(Prioritized x)      Delete an object from queue. final  void deleteElement(int i)      public synchronized  Object deleteMin()      Get and delete the object with lowest priority. public static  void dump(PriorityQueue q)      public synchronized  Enumeration elements()      public synchronized  boolean empty()      Test whether queue is empty. public synchronized  Object getMin()      Get object with lowest priority from queue. final  float getPriority(int i)      final  void heapify(int i)      public static  void main(String[] args)      public synchronized  void put(Prioritized x)      Put an object on the queue. public synchronized  int size()      Get number of objects in queue. final  void swap(int i, int j)      public synchronized  void update()      Rebuild priority queuein case the priorities of its elements have changed since they were inserted. Constructor Detail PriorityQueue public PriorityQueue()(Code) Make an empty PriorityQueue. PriorityQueue public PriorityQueue(int initialCapacity)(Code) Make an empty PriorityQueue with an initial capacity. Parameters:   initialCapacity - number of elements initially allocated in queue Method Detail clear public synchronized void clear()(Code) Remove all objects from queue. delete public synchronized boolean delete(Prioritized x)(Code) Delete an object from queue. If object was inserted more than once, this method deletes only one occurrence of it. Parameters:   x - object to delete true if x was found and deleted, false if x not found in queue deleteElement final void deleteElement(int i)(Code) deleteMin public synchronized Object deleteMin()(Code) Get and delete the object with lowest priority. object with lowest priority, or null if queue is empty dump public static void dump(PriorityQueue q)(Code) elements public synchronized Enumeration elements()(Code) Enumerate the objects in the queue, in no particular order enumeration of objects in queue empty public synchronized boolean empty()(Code) Test whether queue is empty. true iff queue is empty. getMin public synchronized Object getMin()(Code) Get object with lowest priority from queue. object with lowest priority, or null if queue is empty getPriority final float getPriority(int i)(Code) heapify final void heapify(int i)(Code) main public static void main(String[] args)(Code) put public synchronized void put(Prioritized x)(Code) Put an object on the queue. Doesn't check for duplicate puts. Parameters:   x - object to put on the queue size public synchronized int size()(Code) Get number of objects in queue. number of objects swap final void swap(int i, int j)(Code) update public synchronized void update()(Code) Rebuild priority queuein case the priorities of its elements have changed since they were inserted. If the priority of any element changes, this method must be called to update the priority queue. Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)