91 lines
5.5 KiB
HTML
91 lines
5.5 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="Text conversion" />
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<meta name="abstract" content="Character data is converted through the AS400Text class. This class converts character data between an EBCDIC code page and character set (CCSID), and Unicode." />
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<meta name="description" content="Character data is converted through the AS400Text class. This class converts character data between an EBCDIC code page and character set (CCSID), and Unicode." />
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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="dtadtext" />
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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>Text conversion</title>
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</head>
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<body id="dtadtext"><a name="dtadtext"><!-- --></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">Text conversion</h1>
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<div><p>Character data is converted through the AS400Text class. This class
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converts character data between an EBCDIC code page and character set (CCSID),
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and Unicode. </p>
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<div class="section"><p><a href="javadoc/com/ibm/as400/access/AS400Text.html#NAVBAR_TOP"> AS400Text</a></p>
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<p>When the AS400Text object is <a href="javadoc/com/ibm/as400/access/AS400Text.html#CONSTRUCTOR_DETAIL"> constructed</a>,
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the Java™ program
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specifies the length of the string to be converted and the server CCSID or
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encoding. The CCSID of the Java program is assumed to be 13488 Unicode.
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The <a href="javadoc/com/ibm/as400/access/AS400Text.html#TOBYTES(JAVA.LANG.OBJECT)"> toBytes()</a> method converts from Java form
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to byte array in iSeries™ format.
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The <a href="javadoc/com/ibm/as400/access/AS400Text.html#TOOBJECT(BYTE[])"> toObject()</a> method converts from a byte array in iSeries format
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to Java format. </p>
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<p>The <a href="javadoc/com/ibm/as400/access/AS400BidiTransform.html#NAVBAR_TOP"> AS400BidiTransform</a> class provides layout transformations
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that allow the conversion of bidirectional text in iSeries format (after its conversion
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to Unicode) to bidirectional text in Java format, or from Java format
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to iSeries
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format. The default conversion is based on the CCSID of the job. To alter
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the direction and shaping of the text, specify a <a href="javadoc/com/ibm/as400/access/BidiStringType.html#NAVBAR_TOP"> BidiStringType</a>. Note that where IBM<sup>®</sup> Toolbox for Java objects perform the conversion internally,
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as in the DataArea class, the objects have a method to override the string
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type. For example, the DataArea class has addVetoableChangeListener() method
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that you can specify to listen for a veto changes to certain properties,
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including string type.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Example: Converting text data</h4><p>The following example
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assumes that a DataQueueEntry object returns text in EBCDIC. The example converts
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the EBCDIC data to Unicode, so that the Java program can use data:</p>
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<pre> // Assume the data queue work has already been done to
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// retrieve the text from the iSeries and the data has been
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// put in the following buffer.
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int textLength = 100;
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byte[] data = new byte[textLength];
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// Create a converter for the iSeries data type. Note a default
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// converter is being built. This converter assumes the iSeries
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// EBCDIC code page matches the client's locale. If this is not
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// true the Java program can explicitly specify the EBCDIC
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// CCSID to use. However, it is recommended that you specify a
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// CCSID whenever possible (see the Notes: below).
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AS400Text textConverter = new AS400Text(textLength)
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// Note: Optionally, you can create a converter for a specific
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// CCSID. Use an AS400 object in case the program is running
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// as an IBM Toolbox for Java proxy client.
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int ccsid = 37;
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AS400 system = ...; // AS400 object
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AS400Text textConverter = new AS400Text(textLength, ccsid, system);
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// Note: You can also create a converter with just the AS400 object.
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// This converter assumes the iSeries code page matches
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// the CCSID returned by the AS400 object.
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AS400Text textConverter = new AS400Text(textLength, system);
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// Convert the data from EBCDIC to Unicode. If the length of
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// the AS400Text object is longer than the number of
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// converted characters, the resulting String will be
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// blank-padded out to the specified length.
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String javaText = (String) textConverter.toObject(data);</pre>
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</div>
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</div>
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</body>
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</html>
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