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<title>Logging</title>
 
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<p><a id="CIABGHHI" name="CIABGHHI"></a></p>
<div class="sect3"><!-- infolevel="all" infotype="General" -->
<h1>Logging</h1>
<p>This table lists the properties of the Logging page of the <a href="reference018.htm#CIACCHID">persistence.xml Editor</a>.</p>
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<p class="notep1">Note:</p>
This page is not available for projects using the <span class="bold">Generic</span> platform.</td>
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<p class="titleintable">Properties of the Logging Page</p>
<table class="Formal" title="Properties of the Logging Page" summary="This table lists the properties of the Logging page of the persistence.xml Editor." dir="ltr" border="1" width="100%" frame="hsides" rules="groups" cellpadding="3" cellspacing="0">
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<th align="left" valign="bottom" id="r1c1-t23">Property</th>
<th align="left" valign="bottom" id="r1c2-t23">Description</th>
<th align="left" valign="bottom" id="r1c3-t23">Default</th>
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<td align="left" id="r2c1-t23" headers="r1c1-t23">
<p>Logging Level</p>
</td>
<td align="left" headers="r2c1-t23 r1c2-t23">
<p>Specifies the amount and detail of log output by selecting the log level (in ascending order of information):</p>
<p>The following are the valid values for the <code>java.util.logging.Level</code>:</p>
<ul>
<li>
<p><span class="bold">OFF</span>&ndash;disables logging</p>
</li>
<li>
<p><span class="bold">SEVERE</span>&ndash;logs exceptions indicating TopLink cannot continue, as well as any exceptions generated during login. This includes a stack trace.</p>
</li>
<li>
<p><span class="bold">WARNING</span>&ndash;logs exceptions that do not force TopLink to stop, including all exceptions not logged with severe level. This does not include a stack trace.</p>
</li>
<li>
<p><span class="bold">INFO</span>&ndash;logs the login/logout per sever session, including the user name. After acquiring the session, detailed information is logged.</p>
</li>
<li>
<p><span class="bold">CONFIG</span>&ndash;logs only login, JDBC connection, and database information.</p>
</li>
<li>
<p><span class="bold">FINE</span>&ndash;logs SQL.</p>
</li>
<li>
<p><span class="bold">FINER</span>&ndash;similar to warning. Includes stack trace.</p>
</li>
<li>
<p><span class="bold">FINEST</span>&ndash;includes additional low level information.</p>
</li>
</ul>
<p><span class="bold">Example</span>: <code>persistence.xml</code> file</p>
<pre xml:space="preserve" class="oac_no_warn">
&lt;property name="eclipselink.logging.level" value="INFO"/&gt;
</pre></td>
<td align="left" headers="r2c1-t23 r1c3-t23">
<p>Info</p>
</td>
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<td align="left" id="r3c1-t23" headers="r1c1-t23">
<p>&nbsp;&nbsp;TimeStamp</p>
</td>
<td align="left" headers="r3c1-t23 r1c2-t23">
<p>Control whether the timestamp is logged in each log entry.</p>
<p>The following are the valid values:</p>
<ul>
<li>
<p><span class="bold">true</span>&ndash;log a timestamp.</p>
</li>
<li>
<p><span class="bold">false</span>&ndash;do not log a timestamp.</p>
</li>
</ul>
<p><span class="bold">Example</span>: <code>persistence.xml</code> file</p>
<pre xml:space="preserve" class="oac_no_warn">
&lt;property name="eclipselink.logging.timestamp" value="false"/&gt;
</pre></td>
<td align="left" headers="r3c1-t23 r1c3-t23"><br /></td>
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<p>&nbsp;&nbsp;Thread</p>
</td>
<td align="left" headers="r4c1-t23 r1c2-t23">
<p>Control whether a thread identifier is logged in each log entry.</p>
<p>The following are the valid values:</p>
<ul>
<li>
<p><span class="bold">true</span>&ndash;log a thread identifier.</p>
</li>
<li>
<p><span class="bold">false</span>&ndash;do not log a thread identifier.</p>
</li>
</ul>
</td>
<td align="left" headers="r4c1-t23 r1c3-t23"><br /></td>
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<td align="left" id="r5c1-t23" headers="r1c1-t23">
<p>&nbsp;&nbsp;Session</p>
</td>
<td align="left" headers="r5c1-t23 r1c2-t23">
<p>Control whether an EclipseLink session identifier is logged in each log entry.</p>
<p>The following are the valid values:</p>
<ul>
<li>
<p><span class="bold">true</span>&ndash;log a EclipseLink session identifier.</p>
</li>
<li>
<p><span class="bold">false</span>&ndash;do not log a EclipseLink session identifier.</p>
</li>
</ul>
<p><span class="bold">Example</span>: <code>persistence.xml</code> file</p>
<pre xml:space="preserve" class="oac_no_warn">
&lt;property name="eclipselink.logging.session" value="false"/&gt;
</pre></td>
<td align="left" headers="r5c1-t23 r1c3-t23"><br /></td>
</tr>
<tr align="left" valign="top">
<td align="left" id="r6c1-t23" headers="r1c1-t23">
<p>&nbsp;&nbsp;Exceptions</p>
</td>
<td align="left" headers="r6c1-t23 r1c2-t23">
<p>Control whether the exceptions thrown from within the TopLink code are logged prior to returning the exception to the calling application. Ensures that all exceptions are logged and not masked by the application code.</p>
<p>The following are the valid values:</p>
<ul>
<li>
<p><span class="bold">true</span>&ndash;log all exceptions.</p>
</li>
<li>
<p><span class="bold">false</span>&ndash;do not log exceptions.</p>
</li>
</ul>
<p><span class="bold">Example</span>: <code>persistence.xml</code> file</p>
<pre xml:space="preserve" class="oac_no_warn">
&lt;property name="eclipselink.logging.exceptions" value="true"/&gt;
</pre></td>
<td align="left" headers="r6c1-t23 r1c3-t23"><br /></td>
</tr>
<tr align="left" valign="top">
<td align="left" id="r7c1-t23" headers="r1c1-t23">
<p>Logger</p>
</td>
<td align="left" headers="r7c1-t23 r1c2-t23">
<p>Select the type of logger to use:</p>
<p>The following are the valid values:</p>
<ul>
<li>
<p><span class="bold">DefaultLogger</span>&ndash;the EclipseLink native logger <code>eclipselink.logging.DefaultSessionLog</code>.</p>
</li>
<li>
<p><span class="bold">JavaLogger</span>&ndash;the <code>java.util.logging</code> logger <code>eclipselink.logging.JavaLog</code>.</p>
</li>
<li>
<p><span class="bold">ServerLogger</span>&ndash;the <code>java.util.logging</code> logger <code>eclipselink.platform.server.ServerLog</code>. Integrates with the application server's logging as define in the <code>eclipselink.platform.server.ServerPlatform.</code></p>
</li>
<li>
<p>Fully qualified class name of a custom logger. The custom logger must implement the <code>eclipselink.logging.SessionLog</code> interface.</p>
</li>
</ul>
<p><span class="bold">Example</span>: <code>persistence.xml</code> file</p>
<pre xml:space="preserve" class="oac_no_warn">
&lt;property name="eclipselink.logging.logger" value="acme.loggers.MyCustomLogger" /&gt;
</pre></td>
<td align="left" headers="r7c1-t23 r1c3-t23">
<p>DefaultLogger</p>
</td>
</tr>
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</table>
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