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/* |
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Copyright @ 1999-2003, The Institute for Genomic Research (TIGR). |
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All rights reserved. |
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*/ |
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/* |
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* $RCSfile: IQueue.java,v $ |
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* $Revision: 1.4 $ |
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* $Date: 2006/02/23 21:00:01 $ |
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* $Author: caliente $ |
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* $State: Exp $ |
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*/ |
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package org.tigr.remote.gateway.util; |
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|
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import java.util.Collection; |
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import java.util.Iterator; |
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|
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public interface IQueue { |
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/** |
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* Returns true if queue is empty. |
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*/ |
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public boolean isEmpty(); |
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|
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/** |
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* Returns head object of queue. |
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*/ |
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public Object getHead(); |
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|
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/** |
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* Adds an object to tail of queue. |
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*/ |
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public void addTail(Object o); |
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|
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/** |
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* Clears queue. |
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*/ |
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public void clear(); |
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|
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/** |
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* Returns queue iterator. |
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*/ |
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public Iterator iterator(); |
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|
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/** |
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* Adds specified collection to the tail of queue. |
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*/ |
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public void addTail(Collection col); |
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|
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/** |
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* Adds specified collection to the head of queue. |
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*/ |
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public void addHead(Collection col); |
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|
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/** |
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* Returns queue copy as a Collection. |
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*/ |
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public Collection makeCopy(); |
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/** |
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* Returns queue size. |
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*/ |
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public int getSize(); |
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} |
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