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| <h2 title="Interface GroupMappingServiceProvider" class="title">Interface GroupMappingServiceProvider</h2> |
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| <pre>@InterfaceAudience.Public |
| @InterfaceStability.Evolving |
| public interface <span class="typeNameLabel">GroupMappingServiceProvider</span></pre> |
| <div class="block">An interface for the implementation of a user-to-groups mapping service |
| used by <code>Groups</code>.</div> |
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| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/security/GroupMappingServiceProvider.html#GROUP_MAPPING_CONFIG_PREFIX">GROUP_MAPPING_CONFIG_PREFIX</a></span></code> </td> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/security/GroupMappingServiceProvider.html#cacheGroupsAdd-java.util.List-">cacheGroupsAdd</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> groups)</code> |
| <div class="block">Caches the group user information</div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/security/GroupMappingServiceProvider.html#cacheGroupsRefresh--">cacheGroupsRefresh</a></span>()</code> |
| <div class="block">Refresh the cache of groups and user mapping</div> |
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| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/security/GroupMappingServiceProvider.html#getGroups-java.lang.String-">getGroups</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> user)</code> |
| <div class="block">Get all various group memberships of a given user.</div> |
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| <h4>GROUP_MAPPING_CONFIG_PREFIX</h4> |
| <pre>static final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> GROUP_MAPPING_CONFIG_PREFIX</pre> |
| <dl> |
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| <h4>getGroups</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> getGroups(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> user) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Get all various group memberships of a given user. |
| Returns EMPTY list in case of non-existing user</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>user</code> - User's name</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>group memberships of user</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>cacheGroupsRefresh</h4> |
| <pre>void cacheGroupsRefresh() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Refresh the cache of groups and user mapping</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>cacheGroupsAdd</h4> |
| <pre>void cacheGroupsAdd(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> groups) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Caches the group user information</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>groups</code> - list of groups to add to cache</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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