52 lines
3.0 KiB
HTML
52 lines
3.0 KiB
HTML
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Ordering data queue messages" />
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<meta name="abstract" content="There are three ways to designate the order of messages on a data queue:" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<title>Ordering data queue messages</title>
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</head>
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<body id="orderdqmsg"><a name="orderdqmsg"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Ordering data queue messages</h1>
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<div><p>There are three ways to designate the order of messages on a data
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queue: </p>
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<div class="section"><dl><dt class="dlterm">LIFO</dt>
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<dd>Last in, first out. The last message (newest) placed on the data queue
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will be the first message taken off of the queue.</dd>
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<dt class="dlterm">FIFO</dt>
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<dd>First in, first out. The first message (oldest) placed on the data queue
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will be the first message taken off of the queue.</dd>
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<dt class="dlterm">KEYED</dt>
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<dd>Each message on the data queue has a key associated with it. A message
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can be taken off of the queue only by requesting the key with which it is
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associated.</dd>
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</dl>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaikappdq.htm" title="Use iSeries Access for Windows Data Queues application programming interfaces (APIs) to provide easy access to iSeries data queues. Data queues allow you to create client/server applications that do not require the use of communications APIs.">iSeries Access for Windows Data Queues APIs</a></div>
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</div>
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