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<h2 class="title" style="clear: both"><a id="coreExceptions"></a>Exception Handling</h2>
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<p>
Before continuing, it is useful to spend a few moments on exception
handling in DB with the
<span>java</span>.
</p>
<p>
<span>Most</span>
DB methods throw
<tt class="classname">DatabaseException</tt>
in the event of a serious error.
<span>
So your DB code must either catch this exception or declare it
to be throwable. Be aware that <tt class="classname">DatabaseException</tt> extends
<tt class="classname">java.lang.Exception</tt>. For example:
</span>
</p>
<a id="java_intro1"></a>
<pre class="programlisting">import com.sleepycat.db.DatabaseException;
...
try
{
// DB and other code goes here
}
catch(DatabaseException e)
{
// DB error handling goes here
} </pre>
<p>
You can obtain the DB error number for a
<tt class="classname">DatabaseException</tt>
by using
<span>
<tt class="methodname">DatabaseException.getErrno()</tt>.
You can also obtain any error message associated with that error
using <tt class="methodname">DatabaseException.getMessage()</tt>.
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