418 lines
10 KiB
HTML
418 lines
10 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>Clear Data Queue (QCLRDTAQ) API</title>
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<!-- Begin Header Records ========================================== -->
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<!-- QCLRDTAQ SCRIPT A converted by B2H R4.1 (346) (CMS) by PMHALL at -->
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<!-- RCHVMW2 on 7 Oct 1998 at 16:10:02 -->
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<!-- Change History: -->
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<!-- YYMMDD USERID Change description -->
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<!-- Edited by Kersten Jan 02 -->
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<!--End Header Records -->
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<a name="Top_Of_Page"></a>
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<!-- Java sync-link -->
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<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
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</script>
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<h2>Clear Data Queue (QCLRDTAQ) API</h2>
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<div class="box" style="width: 70%;">
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<br>
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Required Parameter Group:<br>
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<!-- iddvc RMBR -->
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<br>
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<table width="100%">
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<tr>
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<td align="center" valign="top" width="10%">1</td>
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<td align="left" valign="top" width="50%">Data queue name</td>
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<td align="left" valign="top" width="20%">Input</td>
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<td align="left" valign="top" width="20%">Char(10)</td>
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</tr>
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<tr>
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<td align="center" valign="top">2</td>
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<td align="left" valign="top">Library name</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Char(10)</td>
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</tr>
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</table>
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<br>
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Optional Parameter Group:<br>
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<!-- iddvc RMBR -->
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<br>
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<table width="100%">
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<tr>
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<td align="center" valign="top" width="10%">3</td>
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<td align="left" valign="top" width="50%">Key order</td>
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<td align="left" valign="top" width="20%">Input</td>
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<td align="left" valign="top" width="20%">Char(2)</td>
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</tr>
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<tr>
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<td align="center" valign="top">4</td>
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<td align="left" valign="top">Length of key data</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Packed(3,0)</td>
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</tr>
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<tr>
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<td align="center" valign="top">5</td>
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<td align="left" valign="top">Key data</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Char(*)</td>
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</tr>
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<tr>
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<td align="center" valign="top">6</td>
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<td align="left" valign="top">Error code</td>
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<td align="left" valign="top">I/O</td>
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<td align="left" valign="top">Char(*)</td>
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</tr>
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</table>
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<br>
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Default Public Authority: *USE<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: Conditional; see <a href="#usage_notes">Usage Notes</a>.<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The Clear Data Queue (QCLRDTAQ) API clears all data from the specified data
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queue, or clears messages that match the key specification from a keyed data
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queue.</p>
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<p>If the data queue was created with the AUTORCL keyword on the Create Data
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Queue (CRTDTAQ) command set to *YES, when the queue is empty the storage
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allocated to the data queue will be reduced to the storage needed for the
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initial number of entries defined for the data queue.</p>
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<p>Distributed data management (DDM) data queues are supported using this API.
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This means that you can use this API to clear a data queue that exists on a
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remote iSeries. Clearing messages by key is not supported for DDM data
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queues.</p>
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<br>
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<h3>Authorities and Locks</h3>
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<dl>
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<dt><em>Data Queue Authority</em></dt>
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<dd>*OBJOPR and *READ</dd>
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<dt><em>Data Queue Library Authority</em></dt>
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<dd>*EXECUTE</dd>
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<dt><em>Data Queue Lock</em></dt>
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<dd>*EXCLRD</dd>
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</dl>
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<br>
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<h3>Required Parameter Group</h3>
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<dl>
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<dt><strong>Data queue name</strong></dt>
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<dd>INPUT; CHAR(10)
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<p>The name of the data queue being cleared.</p>
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</dd>
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<dt><strong>Library name</strong></dt>
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<dd>INPUT; CHAR(10)
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<p>The name of the library where the data queue resides.</p>
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<p>You can use these special values for the library name:</p>
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<table cellpadding="5">
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<!-- cols="15 85" -->
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<tr>
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<td align="left" valign="top"><em>*LIBL</em></td>
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<td align="left" valign="top">The library list</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>*CURLIB</em></td>
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<td align="left" valign="top">The job's current library.</td>
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</tr>
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</table>
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</dd>
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</dl>
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<br>
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<h3>Optional Parameter Group</h3>
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<dl>
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<dt><strong>Key order</strong></dt>
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<dd>INPUT; CHAR(2)
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<p>The comparison criteria between the keys of messages on the data queue and
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the key data parameter.</p>
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<p>Valid values are:</p>
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<table cellpadding="5">
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<!-- cols="10 90" -->
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<tr>
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<td align="left" valign="top"><em>GT</em></td>
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<td align="left" valign="top">Greater than</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>LT</em></td>
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<td align="left" valign="top">Less than</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>NE</em></td>
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<td align="left" valign="top">Not equal</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>EQ</em></td>
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<td align="left" valign="top">Equal</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>GE</em></td>
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<td align="left" valign="top">Greater than or equal</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>LE</em></td>
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<td align="left" valign="top">Less than or equal</td>
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</tr>
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</table>
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<p>This parameter is ignored if the length of key data is zero. A value of
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blanks is recommended if the length of key data is zero.</p>
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<p>For example, assume a keyed data queue contains these three entries:</p>
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<table border width="50%">
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<!-- width="50" -->
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<!-- cols="30 70" -->
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<tr>
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<th align="center" valign="top">Physical Entry</th>
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<th align="center" valign="top">3-Character Key</th>
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</tr>
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<tr>
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<td align="center" valign="top" width="30%">1</td>
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<td align="center" valign="top" width="70%">GGG</td>
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</tr>
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<tr>
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<td align="center" valign="top">2</td>
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<td align="center" valign="top">XXX</td>
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</tr>
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<tr>
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<td align="center" valign="top">3</td>
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<td align="center" valign="top">AAA</td>
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</tr>
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</table>
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<p>If a key order of LT is specified with key data of XXX, entries 1 and 3
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would be removed. If a key order of EQ is specified with key data of XXX, entry
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2 would be removed.</p>
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</dd>
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<dt><strong>Length of key data</strong></dt>
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<dd>INPUT; PACKED(3,0)
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<p>The length of the key data parameter. If this parameter is specified, it
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must be zero for nonkeyed data queues. For keyed data queues it must be either
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zero or equal to the length specified on the KEYLEN parameter on the Create
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Data Queue (CRTDTAQ) command. If this parameter is not specified or is zero,
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all messages will be cleared from the data queue.</p>
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</dd>
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<dt><strong>Key data</strong></dt>
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<dd>INPUT; CHAR(*)
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<p>The data to be used for selecting messages to be removed from the data
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queue.</p>
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</dd>
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<dt><strong>Error code</strong></dt>
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<dd>I/O; CHAR(*)
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<p>The structure in which to return error information. For the format of the
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structure, see <a href="../apiref/error.htm#hdrerrcod">Error Code Parameter</a>.</p>
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</dd>
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</dl>
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<br>
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<h3><a name="usage_notes">Usage Notes</a></h3>
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<p>This API can be used in a multithreaded job to clear messages from a local
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data queue. It cannot be used in a job that allows multiple threads to clear
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messages from a DDM data queue.</p>
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<br>
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<h3>Error Messages</h3>
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<table width="100%" cellpadding="5">
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<!-- cols="15 85" -->
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<tr>
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<th align="left" valign="top">Message ID</th>
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<th align="left" valign="top">Error Message Text</th>
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</tr>
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<tr>
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<td width="15%" valign="top">CPF24B4 E</td>
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<td width="85%" valign="top">Severe error while addressing parameter list.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF3C36 E</td>
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<td align="left" valign="top">Number of parameters, &1, entered for this
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API was not valid.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF3C90 E</td>
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<td align="left" valign="top">Literal value cannot be changed.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF3CF1 E</td>
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<td align="left" valign="top">Error code parameter not valid.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9502 E</td>
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<td align="left" valign="top">Key length must be zero for data queue &1 in
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&2.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9503 E</td>
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<td align="left" valign="top">Cannot lock data queue &1 in &2.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9504 E</td>
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<td align="left" valign="top">An invalid search order was specified.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9506 E</td>
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<td align="left" valign="top">Key length must be &3 for data queue &1
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in &2.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9507 E</td>
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<td align="left" valign="top">Invalid key length specified.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9510 E</td>
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<td align="left" valign="top">Operation on DDM data queue &1 in &2
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failed.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9511 E</td>
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<td align="left" valign="top">Function not supported for DDM data queue
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&1.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9523 E</td>
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<td align="left" valign="top">Data queue function not successful.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9801 E</td>
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<td align="left" valign="top">Object &2 in library &3 not found.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9802 E</td>
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<td align="left" valign="top">Not authorized to object &2 in &3.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9807 E</td>
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<td align="left" valign="top">One or more libraries in library list
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deleted.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9808 E</td>
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<td align="left" valign="top">Cannot allocate one or more libraries on library
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|
list.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF9810 E</td>
|
||
|
|
<td align="left" valign="top">Library &1 not found.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF9820 E</td>
|
||
|
|
<td align="left" valign="top">Not authorized to use library &1.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF9830 E</td>
|
||
|
|
<td align="left" valign="top">Cannot assign library &1.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">CPF9872 E</td>
|
||
|
|
<td align="left" valign="top">Program or service program &1 in library
|
||
|
|
&2 ended. Reason code &3.</td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<hr>
|
||
|
|
API introduced: V1R3
|
||
|
|
|
||
|
|
<hr>
|
||
|
|
<table cellpadding="2" cellspacing="2" align="center">
|
||
|
|
<tr align="center">
|
||
|
|
<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
|
||
|
|
"obj1.htm">Object API categories</a> | <a href="aplist.htm">API by
|
||
|
|
category</a></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</body>
|
||
|
|
</html>
|
||
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