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<div class="sect1"><!-- infolevel="all" infotype="General" -->
<h1 class="sect1"><font face="arial, helvetica, sans-serif" color="#330099">Using a Property Map</font></h1>
<p>You can use a property map to override the default persistence properties and use container deployment.</p>
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<h2 class="sect2"><font face="arial, helvetica, sans-serif" color="#330099">Main Tasks</font></h2>
<p>To use a property map, perform the following steps:</p>
<ul>
<li>
<p><a href="#CHDHHIIJ">Task 1: Configure the persistence.xml File</a></p>
</li>
<li>
<p><a href="#CHDCAFIA">Task 2: Configure the Bootstrapping API</a></p>
</li>
<li>
<p><a href="#CHDGCFBH">Task 3: Instantiate the EntityManagerFactory</a></p>
</li>
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<h3 class="sect3"><font face="arial, helvetica, sans-serif" color="#330099">Task 1: Configure the persistence.xml File</font></h3>
<p><a href="#CHDEHGEG">Example 17-3</a> illustrates a <code>persistence.xml</code> file that uses container deployment.</p>
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<p><strong><em><font face="arial, helvetica, sans-serif">Example 17-3 A persistence.xml File Specifying the Java SE Platform Configuration, for use with a Property Map</font></em></strong></p>
<pre xml:space="preserve" class="oac_no_warn">
&lt;persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence persistence_1_0.xsd" version="1.0"&gt;
&lt;persistence-unit name="employee" transaction-type="RESOURCE_LOCAL"&gt;
&lt;non-jta-data-source&gt;jdbc/MyDS&lt;/non-jta-data-source&gt;
&lt;/persistence-unit&gt;
&lt;/persistence&gt;
</pre></div>
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<p class="note"><img src="../../dcommon/images/note_icon.png" width="16" height="16" alt="Note" style="vertical-align:middle;padding-right:5px;" />Note:</p>
<p>There is no data source available when tested outside a container.</p>
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<h3 class="sect3"><font face="arial, helvetica, sans-serif" color="#330099">Task 2: Configure the Bootstrapping API</font></h3>
<p>To test the persistence unit shown in <a href="#CHDEHGEG">Example 17-3</a> outside the container, you must use the Java SE platform bootstrapping API. <a href="#CHDDHBCC">Example 17-4</a> contains sample code that illustrates this bootstrapping.</p>
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<p><strong><em><font face="arial, helvetica, sans-serif">Example 17-4 Sample Configuration</font></em></strong></p>
<pre xml:space="preserve" class="oac_no_warn">
import static org.eclipse.persistence.config.PersistenceUnitProperties.*;
...
Map properties = new HashMap();
// Ensure RESOURCE_LOCAL transactions is used.
properties.put(TRANSACTION_TYPE,
PersistenceUnitTransactionType.RESOURCE_LOCAL.name());
// Configure the internal connection pool
properties.put(JDBC_DRIVER, "oracle.jdbc.OracleDriver");
properties.put(JDBC_URL, "jdbc:oracle:thin:@localhost:1521:ORCL");
properties.put(JDBC_USER, "scott");
properties.put(JDBC_PASSWORD, "tiger");
// Configure logging. FINE ensures all SQL is shown
properties.put(LOGGING_LEVEL, "FINE");
properties.put(LOGGING_TIMESTAMP, "false");
properties.put(LOGGING_THREAD, "false");
properties.put(LOGGING_SESSION, "false");
// Ensure that no server-platform is configured
properties.put(TARGET_SERVER, TargetServer.None);
</pre></div>
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<h3 class="sect3"><font face="arial, helvetica, sans-serif" color="#330099">Task 3: Instantiate the EntityManagerFactory</font></h3>
<p>An <code>EntityManagerFactory</code> provides an efficient way to construct <code>EntityManager</code> instances for a database. You can instantiate the <code>EntityManagerFactory</code> for the application (illustrated in <a href="#CHDDHBCC">Example 17-4</a>) by using:</p>
<pre xml:space="preserve" class="oac_no_warn">
Persistence.
createEntityManagerFactory("unitName", "properties");
</pre></div>
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