tyContext interface remains associated with the instance for 
 the lifetime of the instance. Note that the information that the instance
 obtains using the EntityContext interface (such as the result of the
 getPrimaryKey() method) may change, as the container assigns the instance
 to different enterprise bean objects during the instance's life cycle.

 <p><b>Note:</b> Support for entity beans is optional as of EJB 3.2.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>EJB 2.0</dd>
</dl>
</