EVEDemo.SWEEP
Class MessageQueue

java.lang.Object
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  +--EVEDemo.SWEEP.Queue
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        +--EVEDemo.SWEEP.MessageQueue

public class MessageQueue

extends Queue

implements java.io.Serializable

See Also:

Serialized Form

Fields inherited from class EVEDemo.SWEEP.Queue

current, head, index, size, tail, wl

Constructor Summary

MessageQueue()

Method Summary

boolean	exists(int theIndex)
Relation	peek(int theIndex) Get the data update from a specific information sources.
Element	peekNext() Peek the next element in the queue for future use.
Relation	peekNext(int theIndex) Get the next data update from the specific information sources.
Element	remove() Get one Message from the MessageQueue and remove it.

Methods inherited from class EVEDemo.SWEEP.Queue

Append, dequeue, Dequeue, enqueue, Enqueue, getFirst, getNext, increase, Initialize, isEmpty, isFull, length

Methods inherited from class java.lang.Object

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

Constructor Detail

MessageQueue

public MessageQueue()

Method Detail

exists

public boolean exists(int theIndex)

peek

public Relation peek(int theIndex)
              throws java.lang.Exception

Get the data update from a specific information sources. peek and peeknext should be called within one loop.

peekNext

public Relation peekNext(int theIndex)
                  throws java.lang.Exception

Get the next data update from the specific information sources. It should be used with the peek() function.

remove

public Element remove()

Get one Message from the MessageQueue and remove it. If the Queue is empty, it will wait for a while and retry again.

peekNext

public Element peekNext()

Peek the next element in the queue for future use. e.g. to lock it.