refreshable.html
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Java 2 Platform EE v1.3: Interface Refreshable
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javax.security.auth</FONT>
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Interface Refreshable</H2>
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<DT>public interface <B>Refreshable</B></DL>
<P>
Objects such as credentials may optionally implement this
interface to provide the capability to refresh itself.
For example, a credential with a particular time-restricted lifespan
may implement this interface to allow callers to refresh the time period
for which it is valid.
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<DT><B>See Also: </B><DD><A HREF="../../../javax/security/auth/Subject.html"><CODE>Subject</CODE></A></DL>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/security/auth/Refreshable.html#isCurrent()">isCurrent</A></B>()</CODE>
<BR>
Determine if this <code>Object</code> is current.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/security/auth/Refreshable.html#refresh()">refresh</A></B>()</CODE>
<BR>
Update or extend the validity period for this
<code>Object</code>.</TD>
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<A NAME="isCurrent()"><!-- --></A><H3>
isCurrent</H3>
<PRE>
public boolean <B>isCurrent</B>()</PRE>
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<DD>Determine if this <code>Object</code> is current.
<p><DD><DL>
<DT><B>Returns:</B><DD>true if this <code>Object</code> is currently current,
false otherwise.</DL>
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<A NAME="refresh()"><!-- --></A><H3>
refresh</H3>
<PRE>
public void <B>refresh</B>()
throws <A HREF="../../../javax/security/auth/RefreshFailedException.html">RefreshFailedException</A></PRE>
<DL>
<DD>Update or extend the validity period for this
<code>Object</code>.
<p><DD><DL>
<DT><B>Throws:</B><DD><CODE>java.lang.SecurityException</CODE> - if the caller does not have permission
to update or extend the validity period for this
<code>Object</code>. <p><DD><CODE><A HREF="../../../javax/security/auth/RefreshFailedException.html">RefreshFailedException</A></CODE> - if the refresh attempt failed.</DL>
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