70 lines
4.1 KiB
HTML
70 lines
4.1 KiB
HTML
<?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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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Record class" />
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<meta name="abstract" content="The record class allows the Java program to process data described by the record format class." />
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<meta name="description" content="The record class allows the Java program to process data described by the record format class." />
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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.Identifier" content="dtadrec" />
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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>Record class</title>
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</head>
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<body id="dtadrec"><a name="dtadrec"><!-- --></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">Record class</h1>
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<div><p>The record class allows the Java™ program to process data described by
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the record format class. </p>
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<div class="section"><p><a href="javadoc/com/ibm/as400/access/Record.html#NAVBAR_TOP">Record</a> class</p>
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<p>Data is converted between byte arrays
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containing the server data and Java objects. Methods are provided in the
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record class to do the following:</p>
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<ul><li><a href="dtadrtv.htm#dtadrtv">Retrieve the contents</a> of a field,
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by index or by name, as a Java object.</li>
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<li><a href="javadoc/com/ibm/as400/access/Record.html#GETNUMBEROFFIELDS()"> Retrieve the number</a> of fields in the record.</li>
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<li><a href="dtadset.htm#dtadset">Set the contents</a> of a field,
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by index or by name, with a Java object.</li>
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<li>Retrieve the contents of the record as server data <a href="javadoc/com/ibm/as400/access/Record.html#GETCONTENTS()">into
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a byte array or output stream</a>.</li>
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<li>Set the contents of the record <a href="javadoc/com/ibm/as400/access/Record.html#SETCONTENTS(BYTE[])">from a byte array or an input stream</a>.</li>
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<li>Convert the contents of the record <a href="javadoc/com/ibm/as400/access/Record.html#TOSTRING()">to a String.</a></li>
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</ul>
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</div>
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<div class="section"><h4 class="sectiontitle">Example: Reading a record</h4><p>The following example
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uses the record format created in the <a href="dtadrfmt.htm#dtadrfmt">record
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format</a> example:</p>
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<pre> // Assume data queue setup work has already been done. Now read a
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// record from the data queue.
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DataQueueEntry dqe = dq.read();
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// The data from the data queue is now in a data queue entry. Get
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// the data out of the data queue entry and put it in the record.
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// We obtain a default record from the record format object and
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// initialize it with the data from the data queue entry.
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Record dqRecord = rf.getNewRecord(dqe.getData());
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// Now that the data is in the record, pull the data out one
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// field at a time, converting the data as it is removed. The result
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// is data in a Java object that the program can now process.
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Integer msgNumber = (Integer) dqRecord.getField("msgNumber");
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String msgTime = (String) dqRecord.getField("msgTime");
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String msgText = (String) dqRecord.getField("msgText");</pre>
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</div>
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</div>
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</body>
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</html> |