105 lines
5.1 KiB
HTML
105 lines
5.1 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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<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="IFSJavaFile class" />
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<meta name="abstract" content="This class represents a file in the iSeries integrated file system and extends the java.io.File class. IFSJavaFile allows you to write files for the java.io.File interface that access iSeries integrated file systems." />
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<meta name="description" content="This class represents a file in the iSeries integrated file system and extends the java.io.File class. IFSJavaFile allows you to write files for the java.io.File interface that access iSeries integrated file systems." />
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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="ifsjava" />
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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>IFSJavaFile class</title>
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</head>
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<body id="ifsjava"><a name="ifsjava"><!-- --></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">IFSJavaFile class</h1>
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<div><p>This class represents a file in the iSeries™ integrated file system and extends
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the java.io.File class. IFSJavaFile allows you to write files for the java.io.File
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interface that access iSeries integrated file systems.</p>
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<div class="section"><p><a href="javadoc/com/ibm/as400/access/IFSJavaFile.html#NAVBAR_TOP"> IFSJavaFile</a> </p>
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<p>IFSJavaFile makes portable interfaces
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that are compatible with java.io.File and uses only the errors and exceptions
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that java.io.File uses. IFSJavaFile uses the security manager features from
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java.io.File, but unlike java.io.File, IFSJavaFile uses security features
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continuously.</p>
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<p>You use IFSJavaFile with IFSFileInputStream and IFSFileOutputStream.
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It does not support java.io.FileInputStream and java.io.FileOutputStream.</p>
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<p>IFSJavaFile
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is based on IFSFile; however, its interface is more like java.io.File than
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IFSFile. IFSFile is an alternative to the IFSJavaFile class.</p>
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<p>You can
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get the list of files in a directory by using either the list() method or
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the listFiles() method:</p>
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<ul><li>The listFiles() method performs better because it retrieves and caches
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information for each file on the initial call. After that, information on
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each file is retrieved from the cache.</li>
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<li>The list() method retrieves information on each file in a separate request,
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making it slower and more demanding of server resources.</li>
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</ul>
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<div class="note"><span class="notetitle">Note:</span> Using listFiles() means that the information in the cache eventually
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become stale, so you may need to refresh the data.</div>
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</div>
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<div class="section" id="ifsjava__ifsjex"><a name="ifsjava__ifsjex"><!-- --></a><h4 class="sectiontitle">Example: Using IFSJavaFile</h4><div class="note"><span class="notetitle">Note:</span> Read
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the <a href="codedisclaimer.htm#codedisclaimer">Code example disclaimer</a> for
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important legal information.</div>
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<p>The following example shows how to use
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the IFSJavaFile class:</p>
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<pre> // Work with /Dir/File.txt on the system flash.
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AS400 as400 = new AS400("flash");
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IFSJavaFile file = new IFSJavaFile(as400, "/Dir/File.txt");
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// Determine the parent directory of the file.
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String directory = file.getParent();
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// Determine the name of the file.
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String name = file.getName();
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// Determine the file size.
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long length = file.length();
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// Determine when the file was last modified.
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Date date = new Date(file.lastModified());
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// Delete the file.
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if (file.delete() == false)
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{
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// Display the error code.
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System.err.println("Unable to delete file.");
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}
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try
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{
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IFSFileOutputStream os =
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new IFSFileOutputStream(file.getSystem(), file, IFSFileOutputStream.SHARE_ALL, false);
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byte[] data = new byte[256];
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int i = 0;
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for (; i < data.length; i++)
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{
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data[i] = (byte) i;
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os.write(data[i]);
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}
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os.close();
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}
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catch (Exception e)
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{
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System.err.println ("Exception: " + e.getMessage());
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}</pre>
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</div>
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</div>
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</body>
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</html> |