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 <h2 title="Interface DynamicPolicy" class="title">Interface DynamicPolicy</h2>
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 <pre>public interface <span class="typeNameLabel">DynamicPolicy</span></pre>
 <div class="block">Interface implemented by security policy providers that may support dynamic
  granting of permissions at run-time.  The <code>grant</code> methods of the
  <a href="../../../../net/jini/security/Security.html" title="class in net.jini.security"><code>Security</code></a> class delegate to the
  methods declared by this interface when this interface is implemented by the
  installed security policy provider.  Permissions are granted on the
  granularity of class loader; granting a permission requires (of the calling
  context) <a href="../../../../net/jini/security/GrantPermission.html" title="class in net.jini.security"><code>GrantPermission</code></a> for that
  permission.</div>
 <dl>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>2.0</dd>
 <dt><span class="simpleTagLabel">Author:</span></dt>
 <dd>Sun Microsystems, Inc.</dd>
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 <td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/Permission.html?is-external=true" title="class or interface in java.security">Permission</a>[]</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../net/jini/security/policy/DynamicPolicy.html#getGrants-java.lang.Class-java.security.Principal:A-">getGrants</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&nbsp;cl,
          <a href="http://docs.oracle.com/javase/6/docs/api/java/security/Principal.html?is-external=true" title="class or interface in java.security">Principal</a>[]&nbsp;principals)</code>
 <div class="block">If this security policy provider supports dynamic permission grants,
  returns a new array containing the cumulative set of permissions
  dynamically granted to protection domains (including ones not yet
  created) that are associated with the class loader of the given class
  and possess at least the given set of principals.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../net/jini/security/policy/DynamicPolicy.html#grant-java.lang.Class-java.security.Principal:A-java.security.Permission:A-">grant</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&nbsp;cl,
      <a href="http://docs.oracle.com/javase/6/docs/api/java/security/Principal.html?is-external=true" title="class or interface in java.security">Principal</a>[]&nbsp;principals,
      <a href="http://docs.oracle.com/javase/6/docs/api/java/security/Permission.html?is-external=true" title="class or interface in java.security">Permission</a>[]&nbsp;permissions)</code>
 <div class="block">If this security policy provider supports dynamic permission grants,
  grants the specified permissions to all protection domains (including
  ones not yet created) that are associated with the class loader of the
  given class and possess at least the given set of principals.</div>
 </td>
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 <tr id="i2" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../net/jini/security/policy/DynamicPolicy.html#grantSupported--">grantSupported</a></span>()</code>
 <div class="block">Returns <code>true</code> if this policy provider supports dynamic
  permission grants; returns <code>false</code> otherwise.</div>
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 <pre>boolean&nbsp;grantSupported()</pre>
 <div class="block">Returns <code>true</code> if this policy provider supports dynamic
  permission grants; returns <code>false</code> otherwise.  Note that this
  method may return different values for a given
  <code>DynamicPolicy</code> instance, depending on context.  For example,
  a policy provider that delegates to different underlying policy
  implementations depending on thread state would return <code>true</code>
  from this method when the current delegate supports dynamic permission
  grants, but return <code>false</code> when another delegate lacking such
  support is in effect.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd><code>true</code> if policy supports dynamic permission grants
                 under current context, <code>false</code> otherwise</dd>
 </dl>
 </li>
 </ul>
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 <h4>grant</h4>
 <pre>void&nbsp;grant(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&nbsp;cl,
            <a href="http://docs.oracle.com/javase/6/docs/api/java/security/Principal.html?is-external=true" title="class or interface in java.security">Principal</a>[]&nbsp;principals,
            <a href="http://docs.oracle.com/javase/6/docs/api/java/security/Permission.html?is-external=true" title="class or interface in java.security">Permission</a>[]&nbsp;permissions)</pre>
 <div class="block">If this security policy provider supports dynamic permission grants,
  grants the specified permissions to all protection domains (including
  ones not yet created) that are associated with the class loader of the
  given class and possess at least the given set of principals.  If the
  given class is <code>null</code>, then the grant applies across all
  protection domains that possess at least the specified principals.  If
  the list of principals is <code>null</code> or empty, then principals
  are effectively ignored in determining the protection domains to which
  the grant applies.  If this policy provider does not support dynamic
  permission grants, then no permissions are granted and an
  <code>UnsupportedOperationException</code> is thrown.
  <p>
  The given class, if non-<code>null</code>, must belong to either the
  system domain or a protection domain whose associated class loader is
  non-<code>null</code>.  If the class does not belong to such a
  protection domain, then no permissions are granted and an
  <code>UnsupportedOperationException</code> is thrown.
  <p>
  If a security manager is installed, its <code>checkPermission</code>
  method is called with a <code>GrantPermission</code> containing the
  permissions to grant; if the permission check fails, then no permissions
  are granted and the resulting <code>SecurityException</code> is thrown.
  The principals and permissions arrays passed in are neither modified nor
  retained; subsequent changes to the arrays have no effect on the grant
  operation.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>cl</code> - class to grant permissions to the class loader of, or
                 <code>null</code> if granting across all class loaders</dd>
 <dd><code>principals</code> - if non-<code>null</code>, minimum set of principals
                 to which grants apply</dd>
 <dd><code>permissions</code> - if non-<code>null</code>, permissions to grant</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/UnsupportedOperationException.html?is-external=true" title="class or interface in java.lang">UnsupportedOperationException</a></code> - if policy does not support
           dynamic grants, or if <code>cl</code> is non-<code>null</code>
           and belongs to a protection domain with a <code>null</code>
           class loader other than the system domain</dd>
 <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/SecurityException.html?is-external=true" title="class or interface in java.lang">SecurityException</a></code> - if a security manager is installed and the
           calling context does not have sufficient permissions to grant
           the given permissions</dd>
 <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if any element of the principals or
           permissions arrays is <code>null</code></dd>
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 <h4>getGrants</h4>
 <pre><a href="http://docs.oracle.com/javase/6/docs/api/java/security/Permission.html?is-external=true" title="class or interface in java.security">Permission</a>[]&nbsp;getGrants(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&nbsp;cl,
                        <a href="http://docs.oracle.com/javase/6/docs/api/java/security/Principal.html?is-external=true" title="class or interface in java.security">Principal</a>[]&nbsp;principals)</pre>
 <div class="block">If this security policy provider supports dynamic permission grants,
  returns a new array containing the cumulative set of permissions
  dynamically granted to protection domains (including ones not yet
  created) that are associated with the class loader of the given class
  and possess at least the given set of principals.  If the given class is
  <code>null</code>, then this method returns the cumulative set of
  permissions dynamically granted across all protection domains that
  possess at least the specified principals (i.e., through calls to the
  grant method where the specified class was <code>null</code>).  If the
  list of principals is <code>null</code> or empty, then the permissions
  returned reflect only grants not qualified by principals (i.e., those
  performed through calls to the grant method where the specified
  principals array was <code>null</code> or empty).  If this policy
  provider does not support dynamic permission grants, then an
  <code>UnsupportedOperationException</code> is thrown.
  <p>
  The given class, if non-<code>null</code>, must belong to either the
  system domain or a protection domain whose associated class loader is
  non-<code>null</code>.  If the class does not belong to such a
  protection domain, then an <code>UnsupportedOperationException</code> is
  thrown.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>cl</code> - class to query the permissions dynamically granted to the
           class loader of, or <code>null</code> if querying permissions
           granted across all class loaders</dd>
 <dd><code>principals</code> - if non-<code>null</code>, principals to query
                 dynamic grants for</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>new array containing the permissions dynamically granted to the
           indicated class loader (if any) and principals</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/UnsupportedOperationException.html?is-external=true" title="class or interface in java.lang">UnsupportedOperationException</a></code> - if policy does not support
           dynamic grants, or if <code>cl</code> is non-<code>null</code>
           and belongs to a protection domain with a <code>null</code>
           class loader other than the system domain</dd>
 <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if any element of the principals array is
           <code>null</code></dd>
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	<h2 title="Interface DynamicPolicy" class="title">Interface DynamicPolicy</h2>
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	<pre>public interface <span class="typeNameLabel">DynamicPolicy</span></pre>
	<div class="block">Interface implemented by security policy providers that may support dynamic
	granting of permissions at run-time. The <code>grant</code> methods of the
	<a href="../../../../net/jini/security/Security.html" title="class in net.jini.security"><code>Security</code></a> class delegate to the
	methods declared by this interface when this interface is implemented by the
	installed security policy provider. Permissions are granted on the
	granularity of class loader; granting a permission requires (of the calling
	context) <a href="../../../../net/jini/security/GrantPermission.html" title="class in net.jini.security"><code>GrantPermission</code></a> for that
	permission.</div>
	<dl>
	<dt><span class="simpleTagLabel">Since:</span></dt>
	<dd>2.0</dd>
	<dt><span class="simpleTagLabel">Author:</span></dt>
	<dd>Sun Microsystems, Inc.</dd>
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	<th class="colLast" scope="col">Method and Description</th>
	</tr>
	<tr id="i0" class="altColor">
	<td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/Permission.html?is-external=true" title="class or interface in java.security">Permission</a>[]</code></td>
	<td class="colLast"><code><span class="memberNameLink"><a href="../../../../net/jini/security/policy/DynamicPolicy.html#getGrants-java.lang.Class-java.security.Principal:A-">getGrants</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a> cl,
	<a href="http://docs.oracle.com/javase/6/docs/api/java/security/Principal.html?is-external=true" title="class or interface in java.security">Principal</a>[] principals)</code>
	<div class="block">If this security policy provider supports dynamic permission grants,
	returns a new array containing the cumulative set of permissions
	dynamically granted to protection domains (including ones not yet
	created) that are associated with the class loader of the given class
	and possess at least the given set of principals.</div>
	</td>
	</tr>
	<tr id="i1" class="rowColor">
	<td class="colFirst"><code>void</code></td>
	<td class="colLast"><code><span class="memberNameLink"><a href="../../../../net/jini/security/policy/DynamicPolicy.html#grant-java.lang.Class-java.security.Principal:A-java.security.Permission:A-">grant</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a> cl,
	<a href="http://docs.oracle.com/javase/6/docs/api/java/security/Principal.html?is-external=true" title="class or interface in java.security">Principal</a>[] principals,
	<a href="http://docs.oracle.com/javase/6/docs/api/java/security/Permission.html?is-external=true" title="class or interface in java.security">Permission</a>[] permissions)</code>
	<div class="block">If this security policy provider supports dynamic permission grants,
	grants the specified permissions to all protection domains (including
	ones not yet created) that are associated with the class loader of the
	given class and possess at least the given set of principals.</div>
	</td>
	</tr>
	<tr id="i2" class="altColor">
	<td class="colFirst"><code>boolean</code></td>
	<td class="colLast"><code><span class="memberNameLink"><a href="../../../../net/jini/security/policy/DynamicPolicy.html#grantSupported--">grantSupported</a></span>()</code>
	<div class="block">Returns <code>true</code> if this policy provider supports dynamic
	permission grants; returns <code>false</code> otherwise.</div>
	</td>
	</tr>
	</table>
	</li>
	</ul>
	</li>
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	<h3>Method Detail</h3>
	<a name="grantSupported--">
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	<h4>grantSupported</h4>
	<pre>boolean grantSupported()</pre>
	<div class="block">Returns <code>true</code> if this policy provider supports dynamic
	permission grants; returns <code>false</code> otherwise. Note that this
	method may return different values for a given
	<code>DynamicPolicy</code> instance, depending on context. For example,
	a policy provider that delegates to different underlying policy
	implementations depending on thread state would return <code>true</code>
	from this method when the current delegate supports dynamic permission
	grants, but return <code>false</code> when another delegate lacking such
	support is in effect.</div>
	<dl>
	<dt><span class="returnLabel">Returns:</span></dt>
	<dd><code>true</code> if policy supports dynamic permission grants
	under current context, <code>false</code> otherwise</dd>
	</dl>
	</li>
	</ul>
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	<h4>grant</h4>
	<pre>void grant(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a> cl,
	<a href="http://docs.oracle.com/javase/6/docs/api/java/security/Principal.html?is-external=true" title="class or interface in java.security">Principal</a>[] principals,
	<a href="http://docs.oracle.com/javase/6/docs/api/java/security/Permission.html?is-external=true" title="class or interface in java.security">Permission</a>[] permissions)</pre>
	<div class="block">If this security policy provider supports dynamic permission grants,
	grants the specified permissions to all protection domains (including
	ones not yet created) that are associated with the class loader of the
	given class and possess at least the given set of principals. If the
	given class is <code>null</code>, then the grant applies across all
	protection domains that possess at least the specified principals. If
	the list of principals is <code>null</code> or empty, then principals
	are effectively ignored in determining the protection domains to which
	the grant applies. If this policy provider does not support dynamic
	permission grants, then no permissions are granted and an
	<code>UnsupportedOperationException</code> is thrown.
	<p>
	The given class, if non-<code>null</code>, must belong to either the
	system domain or a protection domain whose associated class loader is
	non-<code>null</code>. If the class does not belong to such a
	protection domain, then no permissions are granted and an
	<code>UnsupportedOperationException</code> is thrown.
	<p>
	If a security manager is installed, its <code>checkPermission</code>
	method is called with a <code>GrantPermission</code> containing the
	permissions to grant; if the permission check fails, then no permissions
	are granted and the resulting <code>SecurityException</code> is thrown.
	The principals and permissions arrays passed in are neither modified nor
	retained; subsequent changes to the arrays have no effect on the grant
	operation.</div>
	<dl>
	<dt><span class="paramLabel">Parameters:</span></dt>
	<dd><code>cl</code> - class to grant permissions to the class loader of, or
	<code>null</code> if granting across all class loaders</dd>
	<dd><code>principals</code> - if non-<code>null</code>, minimum set of principals
	to which grants apply</dd>
	<dd><code>permissions</code> - if non-<code>null</code>, permissions to grant</dd>
	<dt><span class="throwsLabel">Throws:</span></dt>
	<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/UnsupportedOperationException.html?is-external=true" title="class or interface in java.lang">UnsupportedOperationException</a></code> - if policy does not support
	dynamic grants, or if <code>cl</code> is non-<code>null</code>
	and belongs to a protection domain with a <code>null</code>
	class loader other than the system domain</dd>
	<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/SecurityException.html?is-external=true" title="class or interface in java.lang">SecurityException</a></code> - if a security manager is installed and the
	calling context does not have sufficient permissions to grant
	the given permissions</dd>
	<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if any element of the principals or
	permissions arrays is <code>null</code></dd>
	</dl>
	</li>
	</ul>
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	<h4>getGrants</h4>
	<pre><a href="http://docs.oracle.com/javase/6/docs/api/java/security/Permission.html?is-external=true" title="class or interface in java.security">Permission</a>[] getGrants(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a> cl,
	<a href="http://docs.oracle.com/javase/6/docs/api/java/security/Principal.html?is-external=true" title="class or interface in java.security">Principal</a>[] principals)</pre>
	<div class="block">If this security policy provider supports dynamic permission grants,
	returns a new array containing the cumulative set of permissions
	dynamically granted to protection domains (including ones not yet
	created) that are associated with the class loader of the given class
	and possess at least the given set of principals. If the given class is
	<code>null</code>, then this method returns the cumulative set of
	permissions dynamically granted across all protection domains that
	possess at least the specified principals (i.e., through calls to the
	grant method where the specified class was <code>null</code>). If the
	list of principals is <code>null</code> or empty, then the permissions
	returned reflect only grants not qualified by principals (i.e., those
	performed through calls to the grant method where the specified
	principals array was <code>null</code> or empty). If this policy
	provider does not support dynamic permission grants, then an
	<code>UnsupportedOperationException</code> is thrown.
	<p>
	The given class, if non-<code>null</code>, must belong to either the
	system domain or a protection domain whose associated class loader is
	non-<code>null</code>. If the class does not belong to such a
	protection domain, then an <code>UnsupportedOperationException</code> is
	thrown.</div>
	<dl>
	<dt><span class="paramLabel">Parameters:</span></dt>
	<dd><code>cl</code> - class to query the permissions dynamically granted to the
	class loader of, or <code>null</code> if querying permissions
	granted across all class loaders</dd>
	<dd><code>principals</code> - if non-<code>null</code>, principals to query
	dynamic grants for</dd>
	<dt><span class="returnLabel">Returns:</span></dt>
	<dd>new array containing the permissions dynamically granted to the
	indicated class loader (if any) and principals</dd>
	<dt><span class="throwsLabel">Throws:</span></dt>
	<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/UnsupportedOperationException.html?is-external=true" title="class or interface in java.lang">UnsupportedOperationException</a></code> - if policy does not support
	dynamic grants, or if <code>cl</code> is non-<code>null</code>
	and belongs to a protection domain with a <code>null</code>
	class loader other than the system domain</dd>
	<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if any element of the principals array is
	<code>null</code></dd>
	</dl>
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