accesscontroller.html

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<DT><B>See Also: </B><DD><A HREF="../../java/security/AccessControlContext.html"><CODE>AccessControlContext</CODE></A></DL>
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<B>Method Summary</B></FONT></TD>
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<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/security/AccessController.html#checkPermission(java.security.Permission)">checkPermission</A></B>(<A HREF="../../java/security/Permission.html">Permission</A>&nbsp;perm)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Determines whether the access request indicated by the
 specified permission should be allowed or denied, based on
 the security policy currently in effect.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="../../java/lang/Object.html">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/security/AccessController.html#doPrivileged(java.security.PrivilegedAction)">doPrivileged</A></B>(<A HREF="../../java/security/PrivilegedAction.html">PrivilegedAction</A>&nbsp;action)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Performs the specified <code>PrivilegedAction</code> with privileges
 enabled.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="../../java/lang/Object.html">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/security/AccessController.html#doPrivileged(java.security.PrivilegedAction, java.security.AccessControlContext)">doPrivileged</A></B>(<A HREF="../../java/security/PrivilegedAction.html">PrivilegedAction</A>&nbsp;action,
             <A HREF="../../java/security/AccessControlContext.html">AccessControlContext</A>&nbsp;context)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Performs the specified <code>PrivilegedAction</code> with privileges
 enabled and restricted by the specified <code>AccessControlContext</code>.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="../../java/lang/Object.html">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/security/AccessController.html#doPrivileged(java.security.PrivilegedExceptionAction)">doPrivileged</A></B>(<A HREF="../../java/security/PrivilegedExceptionAction.html">PrivilegedExceptionAction</A>&nbsp;action)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Performs the specified <code>PrivilegedExceptionAction</code> with
 privileges enabled.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="../../java/lang/Object.html">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/security/AccessController.html#doPrivileged(java.security.PrivilegedExceptionAction, java.security.AccessControlContext)">doPrivileged</A></B>(<A HREF="../../java/security/PrivilegedExceptionAction.html">PrivilegedExceptionAction</A>&nbsp;action,
             <A HREF="../../java/security/AccessControlContext.html">AccessControlContext</A>&nbsp;context)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Performs the specified <code>PrivilegedExceptionAction</code> with 
 privileges enabled and restricted by the specified
 <code>AccessControlContext</code>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="../../java/security/AccessControlContext.html">AccessControlContext</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/security/AccessController.html#getContext()">getContext</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This method takes a "snapshot" of the current calling context, which
 includes the current Thread's inherited AccessControlContext,
 and places it in an AccessControlContext object.</TD>
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<TD><B>Methods inherited from class java.lang.<A HREF="../../java/lang/Object.html">Object</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../java/lang/Object.html#clone()">clone</A>, <A HREF="../../java/lang/Object.html#equals(java.lang.Object)">equals</A>, <A HREF="../../java/lang/Object.html#finalize()">finalize</A>, <A HREF="../../java/lang/Object.html#getClass()">getClass</A>, <A HREF="../../java/lang/Object.html#hashCode()">hashCode</A>, <A HREF="../../java/lang/Object.html#notify()">notify</A>, <A HREF="../../java/lang/Object.html#notifyAll()">notifyAll</A>, <A HREF="../../java/lang/Object.html#toString()">toString</A>, <A HREF="../../java/lang/Object.html#wait()">wait</A>, <A HREF="../../java/lang/Object.html#wait(long)">wait</A>, <A HREF="../../java/lang/Object.html#wait(long, int)">wait</A></CODE></TD>
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<A NAME="doPrivileged(java.security.PrivilegedAction)"><!-- --></A><H3>
doPrivileged</H3>
<PRE>
public static <A HREF="../../java/lang/Object.html">Object</A> <B>doPrivileged</B>(<A HREF="../../java/security/PrivilegedAction.html">PrivilegedAction</A>&nbsp;action)</PRE>
<DL>
<DD>Performs the specified <code>PrivilegedAction</code> with privileges
 enabled. The action is performed with <i>all</i> of the permissions 
 possessed by the caller's protection domain.
 <p>
 If the action's <code>run</code> method throws an (unchecked) exception,
 it will propagate through this method.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>action</CODE> - the action to be performed.<DT><B>Returns:</B><DD>the value returned by the action's <code>run</code> method.<DT><B>See Also: </B><DD><A HREF="../../java/security/AccessController.html#doPrivileged(java.security.PrivilegedAction, java.security.AccessControlContext)"><CODE>doPrivileged(PrivilegedAction,AccessControlContext)</CODE></A>, 
<A HREF="../../java/security/AccessController.html#doPrivileged(java.security.PrivilegedExceptionAction)"><CODE>doPrivileged(PrivilegedExceptionAction)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="doPrivileged(java.security.PrivilegedAction, java.security.AccessControlContext)"><!-- --></A><H3>
doPrivileged</H3>
<PRE>
public static <A HREF="../../java/lang/Object.html">Object</A> <B>doPrivileged</B>(<A HREF="../../java/security/PrivilegedAction.html">PrivilegedAction</A>&nbsp;action,
                                  <A HREF="../../java/security/AccessControlContext.html">AccessControlContext</A>&nbsp;context)</PRE>
<DL>
<DD>Performs the specified <code>PrivilegedAction</code> with privileges
 enabled and restricted by the specified <code>AccessControlContext</code>.
 The action is performed with the intersection of the permissions
 possessed by the caller's protection domain, and those possessed
 by the domains represented by the specified
 <code>AccessControlContext</code>.
 <p>
 If the action's <code>run</code> method throws an (unchecked) exception,
 it will propagate through this method.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>action</CODE> - the action to be performed.<DD><CODE>context</CODE> - an <i>access control context</i> representing the
		      restriction to be applied to the caller's domain's
		      privileges before performing the specified action.<DT><B>Returns:</B><DD>the value returned by the action's <code>run</code> method.<DT><B>See Also: </B><DD><A HREF="../../java/security/AccessController.html#doPrivileged(java.security.PrivilegedAction)"><CODE>doPrivileged(PrivilegedAction)</CODE></A>, 
<A HREF="../../java/security/AccessController.html#doPrivileged(java.security.PrivilegedExceptionAction, java.security.AccessControlContext)"><CODE>doPrivileged(PrivilegedExceptionAction,AccessControlContext)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="doPrivileged(java.security.PrivilegedExceptionAction)"><!-- --></A><H3>
doPrivileged</H3>
<PRE>
public static <A HREF="../../java/lang/Object.html">Object</A> <B>doPrivileged</B>(<A HREF="../../java/security/PrivilegedExceptionAction.html">PrivilegedExceptionAction</A>&nbsp;action)
                           throws <A HREF="../../java/security/PrivilegedActionException.html">PrivilegedActionException</A></PRE>
<DL>
<DD>Performs the specified <code>PrivilegedExceptionAction</code> with
 privileges enabled.  The action is performed with <i>all</i> of the 
 permissions possessed by the caller's protection domain.
 <p>
 If the action's <code>run</code> method throws an <i>unchecked</i>
 exception, it will propagate through this method.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>action</CODE> - the action to be performed.<DT><B>Returns:</B><DD>the value returned by the action's <code>run</code> method.<DT><B>Throws:</B><DD><CODE>PrivilgedActionException</CODE> - the specified action's
         <code>run</code> method threw a <i>checked</i> exception.<DT><B>See Also: </B><DD><A HREF="../../java/security/AccessController.html#doPrivileged(java.security.PrivilegedExceptionAction, java.security.AccessControlContext)"><CODE>doPrivileged(PrivilegedExceptionAction,AccessControlContext)</CODE></A>, 
<A HREF="../../java/security/AccessController.html#doPrivileged(java.security.PrivilegedAction)"><CODE>doPrivileged(PrivilegedAction)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="doPrivileged(java.security.PrivilegedExceptionAction, java.security.AccessControlContext)"><!-- --></A><H3>
doPrivileged</H3>
<PRE>
public static <A HREF="../../java/lang/Object.html">Object</A> <B>doPrivileged</B>(<A HREF="../../java/security/PrivilegedExceptionAction.html">PrivilegedExceptionAction</A>&nbsp;action,
                                  <A HREF="../../java/security/AccessControlContext.html">AccessControlContext</A>&nbsp;context)
                           throws <A HREF="../../java/security/PrivilegedActionException.html">PrivilegedActionException</A></PRE>
<DL>
<DD>Performs the specified <code>PrivilegedExceptionAction</code> with 
 privileges enabled and restricted by the specified
 <code>AccessControlContext</code>.  The action is performed with the
 intersection of the the permissions possessed by the caller's
 protection domain, and those possessed by the domains represented by the
 specified <code>AccessControlContext</code>.
 <p>
 If the action's <code>run</code> method throws an <i>unchecked</i>
 exception, it will propagate through this method.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>action</CODE> - the action to be performed.<DD><CODE>context</CODE> - an <i>access control context</i> representing the
		      restriction to be applied to the caller's domain's
		      privileges before performing the specified action.<DT><B>Returns:</B><DD>the value returned by the action's <code>run</code> method.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/security/PrivilegedActionException.html">PrivilegedActionException</A></CODE> - the specified action's
         <code>run</code> method
	       threw a <i>checked</i> exception.<DT><B>See Also: </B><DD><A HREF="../../java/security/AccessController.html#doPrivileged(java.security.PrivilegedAction)"><CODE>doPrivileged(PrivilegedAction)</CODE></A>, 
<A HREF="../../java/security/AccessController.html#doPrivileged(java.security.PrivilegedExceptionAction, java.security.AccessControlContext)"><CODE>doPrivileged(PrivilegedExceptionAction,AccessControlContext)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getContext()"><!-- --></A><H3>
getContext</H3>
<PRE>
public static <A HREF="../../java/security/AccessControlContext.html">AccessControlContext</A> <B>getContext</B>()</PRE>
<DL>
<DD>This method takes a "snapshot" of the current calling context, which
 includes the current Thread's inherited AccessControlContext,
 and places it in an AccessControlContext object. This context may then
 be checked at a later point, possibly in another thread.<DD><DL>
<DT><B>Returns:</B><DD>the AccessControlContext based on the current context.<DT><B>See Also: </B><DD><A HREF="../../java/security/AccessControlContext.html"><CODE>AccessControlContext</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="checkPermission(java.security.Permission)"><!-- --></A><H3>
checkPermission</H3>
<PRE>
public static void <B>checkPermission</B>(<A HREF="../../java/security/Permission.html">Permission</A>&nbsp;perm)
                            throws <A HREF="../../java/security/AccessControlException.html">AccessControlException</A></PRE>
<DL>
<DD>Determines whether the access request indicated by the
 specified permission should be allowed or denied, based on
 the security policy currently in effect. 
 This method quietly returns if the access request
 is permitted, or throws a suitable AccessControlException otherwise.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>perm</CODE> - the requested permission.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/security/AccessControlException.html">AccessControlException</A></CODE> - if the specified permission
 is not permitted, based on the current security policy.</DL>
</DD>
</DL>
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