66 lines
3.9 KiB
HTML
66 lines
3.9 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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<meta name="DC.Title" content="Restrictions on Java stored procedures" />
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<meta name="abstract" content="These restrictions apply to Java stored procedures." />
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<title>Restrictions on Java stored procedures</title>
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</head>
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<body id="javarest"><a name="javarest"><!-- --></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">Restrictions on Java stored procedures</h1>
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<div><p>These restrictions apply to Java™ stored procedures.</p>
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<ul><li>A Java stored
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procedure should not create additional threads. An additional thread may be
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created in a job only if the job is multithread capable. Because there is
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no guarantee that a job that calls an SQL stored procedure is multithread
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capable, a Java stored procedure should not create additional threads.</li>
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<li>You cannot use adopted authority to access Java class files.</li>
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<li>A Java stored
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procedure always uses the latest version of the Java Development Kit that is installed on
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the system.</li>
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<li>Since Blob and Clob classes reside in both the java.sql and com.ibm.db2.app
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packages, the programmer must use the entire name of these classes if both
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classes are used in the same program. The program must ensure that the Blob
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and Clob classes from the com.ibm.db2.app are used as the parameters passed
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to the stored procedure.</li>
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<li>When a Java stored procedure is created, the system generates
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a program in the library. This program is used to store the procedure definition.
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The program has a name that is generated by the system. This name can be obtained
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by examining the job log of the job that created the stored procedure. If
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the program object is saved and then restored, then the procedure definition
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is restored. If a Java stored procedure is to be moved from one system
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to another, you are responsible for moving the program that contains the procedure
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definition as well as the integrated file system file, which contains the Java class.</li>
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<li>A Java stored
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procedure cannot set the properties (for example, system naming) of the JDBC
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connection that is used to connect to the database. The default JDBC connection
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properties are always used, except when prefetching is disabled.</li>
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</ul>
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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="javaproc.htm" title="When using Java to write stored procedures, you can use two possible parameter passing styles.">Java stored procedures</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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