97 lines
6.0 KiB
HTML
97 lines
6.0 KiB
HTML
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<meta name="DC.Title" content="JDBC XA Distributed Transaction Management" />
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<meta name="abstract" content="The JDBC XA distributed transaction management classes enable you to use the IBM Toolbox for Java JDBC driver within a distributed transaction. Using the XA classes to enable the IBM Toolbox for Java JDBC driver allows it to participate in transactions that span multiple data sources." />
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<meta name="description" content="The JDBC XA distributed transaction management classes enable you to use the IBM Toolbox for Java JDBC driver within a distributed transaction. Using the XA classes to enable the IBM Toolbox for Java JDBC driver allows it to participate in transactions that span multiple data sources." />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2006" />
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<title>JDBC XA Distributed Transaction Management</title>
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<body id="jdbcxa"><a name="jdbcxa"><!-- --></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">JDBC XA Distributed Transaction Management</h1>
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<div><p>The JDBC XA distributed transaction management classes enable you
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to use the IBM<sup>®</sup> Toolbox
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for Java™ JDBC
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driver within a distributed transaction. Using the XA classes to enable the IBM Toolbox
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for Java JDBC
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driver allows it to participate in transactions that span multiple data sources.</p>
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<div class="section"><p>Typically, XA distributed transaction management classes are used
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and controlled directly by a transaction manager, which is separate from
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the JDBC driver. The distributed transaction management interfaces are defined
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as part of the JDBC 2.0 Optional Package and the Java Transaction API (JTA). Both are available
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from Sun as jar files. The distributed transaction management interfaces
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are also supported in the JDBC 3.0 API, which is bundled with the Java 2
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Platform, Standard Edition, version 1.4.</p>
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<p>For more information, see
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the Sun Web sites for <a href="http://java.sun.com/products/jdbc/index.html" target="_blank">JDBC</a> <img src="www.gif" alt="Link outside Information Center" /> and the <a href="http://java.sun.com/products/jta/index.html" target="_blank">JTA</a> <img src="www.gif" alt="Link outside Information Center" />.</p>
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<p>Use the following objects to enable the IBM Toolbox for Java JDBC
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driver to participate in XA distributed transactions:</p>
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<ul><li><a href="javadoc/com/ibm/as400/access/AS400JDBCXADataSource.html#NAVBAR_TOP"> AS400JDBCXADataSource</a> - A factory for AS400JDBCXAConnection
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objects. This is a subclass of <a href="javadoc/com/ibm/as400/access/AS400JDBCDataSource.html#NAVBAR_TOP"> AS400JDBCDataSource</a>.</li>
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<li><a href="javadoc/com/ibm/as400/access/AS400JDBCXAConnection.html#NAVBAR_TOP"> AS400JDBCXACConnection</a> - A pooled connection object
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that provides hooks for connection pool management and XA resource management.</li>
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<li><a href="javadoc/com/ibm/as400/access/AS400JDBCXAResource.html#NAVBAR_TOP"> AS400JDBCXAResource</a> - A resource manager for use in
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XA transaction management.</li>
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</ul>
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<div class="note"><span class="notetitle">Note:</span> Prior to V5R3, the database host server used <a href="../apis/unix12a.htm">XA APIs for Job Scoped Locks</a> (XA model).
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In V5R3 and subsequent releases, the database host server uses <a href="../apis/unix12b.htm">XA APIs for Transaction Scoped Locks</a> (NTS
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model) for all MTS functions. For more information about how these APIs differ,
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see <a href="../apis/unix12.htm">XA APIs</a>.</div>
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</div>
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<div class="section"><h4 class="sectiontitle">Example: Using XA classes</h4><p>The following example
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shows simple usage of the XA classes. Keep in mind that the details would
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be filled in with work using other data sources. This type of code usually
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appears within a transaction manager.</p>
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<pre> // Create an XA data source for making the XA connection.
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AS400JDBCXADataSource xaDataSource = new AS400JDBCXADataSource("myAS400");
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xaDataSource.setUser("myUser");
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xaDataSource.setPassword("myPasswd");
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// Get an XAConnection and get the associated XAResource.
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// This provides access to the resource manager.
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XAConnection xaConnection = xaDataSource.getXAConnection();
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XAResource xaResource = xaConnection.getXAResource();
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// Generate a new Xid (this is up to the transaction manager).
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Xid xid = ...;
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// Start the transaction.
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xaResource.start(xid, XAResource.TMNOFLAGS);
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// ...Do some work with the database...
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// End the transaction.
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xaResource.end(xid, XAResource.TMSUCCESS);
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// Prepare for a commit.
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xaResource.prepare(xid);
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// Commit the transaction.
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xaResource.commit(xid, false);
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// Close the XA connection when done. This implicitly
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// closes the XA resource.
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xaConnection.close();</pre>
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</div>
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</div>
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</body>
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</html> |