e database column into the value
 to be stored in the entity attribute.

 <p>Note that it is the responsibility of the converter writer
 to specify the correct <code>dbData</code> type for the corresponding
 column for use by the JDBC driver: i.e., persistence providers
 are not expected to do such type conversion.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>dbData</code> - the data from the database column to be converted</dd>
<dt>Returns:</dt>
<dd>the converted value to be stored in the entity