com.jthomas.util
Class Queue

java.lang.Object
  |
  +--com.jthomas.util.Queue

public class Queue

extends java.lang.Object

This class implements a simple efficient FIFO Queue.

   Usage Example:
	 Thread1:
      Queue myqueue = new Queue(100);
      myqueue.put("This could be any Object");
   Thread2:
      String x = (String)myqueue.get();
 

Notes:
A previous version of this was implemented with by extending a Vector. But this should be more efficient and has the builtin feature(limitation) that it limits the length of the queue. When the array is full, then queue.put(obj) will block until the next element has been gotten.

Author:

John Thomas

Constructor Summary

Queue()
Queue Constructor.

Queue(int capacity)
Queue Constructor that sets the capacity of the Queue.

Method Summary

java.lang.Object	get() Method: get() will return the first object in the Queue.
void	put(java.lang.Object obj) Method: put(Object obj) will place specified object into the FIFO Queue
java.lang.String	toString() Give Debug info

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Queue

public Queue()

Queue Constructor.

Queue

public Queue(int capacity)

Queue Constructor that sets the capacity of the Queue. When this many items are "put" to the queue, then it will block.

Method Detail

get

public java.lang.Object get()

Method: get() will return the first object in the Queue.

If the queue is empty, it will block until a new object arrives.

Returns:

Object It will return the next Object in the Queue.

put

public void put(java.lang.Object obj)

Method: put(Object obj) will place specified object into the FIFO Queue

Parameters:

obj - An Object that is to be added to the queue.

Returns:

void

toString

public java.lang.String toString()

Give Debug info

Overrides:

toString in class java.lang.Object