128 lines
7.3 KiB
HTML
128 lines
7.3 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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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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<html lang="en-us" xml:lang="en-us">
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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="security" content="public" />
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<meta name="Robots" content="index,follow" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Comparison of XPCML source to PCML source" />
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<meta name="abstract" content="XPCML differs from PCML in several ways, but one major difference is that XPCML allows you to specify the values of input parameters within the XPCML source file." />
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<meta name="description" content="XPCML differs from PCML in several ways, but one major difference is that XPCML allows you to specify the values of input parameters within the XPCML source file." />
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<meta name="DC.Relation" scheme="URI" content="rzahhxpcmlschema.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rzahhxpcmlschemacompare" />
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<meta name="DC.Language" content="en-us" />
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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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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Comparison of XPCML source to PCML source</title>
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</head>
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<body id="rzahhxpcmlschemacompare"><a name="rzahhxpcmlschemacompare"><!-- --></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">Comparison of XPCML source to PCML source</h1>
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<div><p>XPCML differs from PCML in several ways, but one major difference
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is that XPCML allows you to specify the values of input parameters within
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the XPCML source file.</p>
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<div class="section"><p>PCML allows you to use the init attribute of the <data> tag
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to specify the initial value for a data element in the PCML source. However,
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using PCML to specify values has the following limitations:</p>
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<ul><li>You cannot use the init attribute to set array values</li>
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<li>Validation of the init value occurs only after parsing the PCML document</li>
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</ul>
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<p>To specify array values in PCML, you must first read in and parse
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the PCML document, then perform a series of calls to ProgramCallDocument.setValue().</p>
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<p>Using
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XPCML makes it easier to specify values of single elements and arrays:</p>
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<ul><li>Specify values for both scalar and array elements in the XPCML source
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file</li>
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<li>Validate the specified array values at parse time</li>
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</ul>
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<p>The following simple comparisons indicate ways in which XPCML differs
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from PCML. Each example defines a program call for an iSeries™ server program.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Example: Calling an iSeries server program</h4><p>The
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following examples call an iSeries server program called prog1.</p>
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<p><strong>XPCML
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source code</strong></p>
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<pre> <?xml version="1.0" encoding="UTF-8"?>
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<xpcml xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:noNamespaceSchemaLocation='xpcml.xsd' version="4.0">
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<program name="prog1" path="/QSYS.LIB/W95LIB.LIB/PROG1.PGM">
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<parameterList>
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<stringParm name="parm1" passDirection="in" length="10">Parm1</stringParm>
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<intParm name="parm2" passDirection="in">5</intParm>
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<shortParm name="parm3" passDirection="in">3</shortParm>
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</parameterList>
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</program>
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</xpcml></pre>
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<p><strong>PCML source code</strong></p>
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<pre> <pcml version="4.0">
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<program name="prog1" path="QSYS.LIB/MYLIB.LIB/PROG1.PGM">
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<data name="parm1" type="char" usage="input" length="10" init="Parm1"/>
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<data name="parm2" type="int" usage="input" length="4" init="5"/>
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<data name="parm3" type="int" usage="input" length="2" precision="16" init="3"/>
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</program>
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</pcml></pre>
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</div>
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<div class="section" id="rzahhxpcmlschemacompare__callprogramarray"><a name="rzahhxpcmlschemacompare__callprogramarray"><!-- --></a><h4 class="sectiontitle">Example: Calling an iSeries server
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program using an array of string parameters</h4><p>The following examples
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call an iSeries server
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program called prog2 and define parm1 as an array of string parameters. Note
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the functionality of XPCML:</p>
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<ul><li>Initializes the value of each element in the array</li>
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<li>Specifies the input values as element content that a fully validating
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XML parser can verify</li>
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</ul>
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<p>You can take advantage of this XPCML functionality without writing
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any Java™ code.</p>
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<p>PCML
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cannot match the XPCML performance. PCML cannot initialize the value of each
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element in the array. PCML cannot validate the init values at parse time.
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To match the functionality of XPCML, you would have to read in and parse the
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PCML document, then code your Java application to set the value for each
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array element. You would also have to write code to validate the parameters.</p>
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<p><strong>XPCML
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source code</strong></p>
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<pre> <?xml version="1.0" encoding="UTF-8"?>
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<xpcml xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:noNamespaceSchemaLocation="xpcml.xsd" version="4.0">
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<program name="prog2" path="/QSYS.LIB/W95LIB.LIB/PROG2.PGM">
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<parameterList>
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<arrayOfStringParm name="parm1" passDirection="in"
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length="10" count="3">
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<i>Parm1-First value</i>
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<i>Parm1-Second value</i>
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<i>Parm1-Third value</i>
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</arrayOfStringParm>
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<longParm name="parm2" passDirection="in">5</longParm>
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<zonedDecimalParm name="parm3" passDirection="in"
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totalDigits="5" fractionDigits="2">32.56</zonedDecimalParm>
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</parameterList>
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</program>
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</xpcml></pre>
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<p><strong>PCML source code</strong></p>
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<pre> <pcml version="4.0">
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<program name="prog2" path="QSYS.LIB/MYLIB.LIB/PROG2.PGM">
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<data name="parm1" type="char" usage="input" length="20" count="3"/>
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<data name="parm2" type="int" usage="input" length="8" init="5"/>
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<data name="parm3" type="zoned" usage="input" length="5" precision="2" init="32.56"/>
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</program>
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</pcml></pre>
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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="rzahhxpcmlschema.htm" title="XPCML documents, called XPCML source files, contain tags and data that fully define calls to programs on your iSeries server.">XPCML schema and syntax</a></div>
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</div>
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</div>
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</body>
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</html>
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