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| <h2 title="Enum LayoutVersion.Feature" class="title">Enum LayoutVersion.Feature</h2> |
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| <dd>org.apache.hadoop.hdfs.protocol.LayoutVersion</dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public static enum <span class="typeNameLabel">LayoutVersion.Feature</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</a><<a href="../../../../../org/apache/hadoop/hdfs/protocol/LayoutVersion.Feature.html" title="enum in org.apache.hadoop.hdfs.protocol">LayoutVersion.Feature</a>> |
| implements <a href="../../../../../org/apache/hadoop/hdfs/protocol/LayoutVersion.LayoutFeature.html" title="interface in org.apache.hadoop.hdfs.protocol">LayoutVersion.LayoutFeature</a></pre> |
| <div class="block">Enums for features that change the layout version before rolling |
| upgrade is supported. |
| <br><br> |
| To add a new layout version: |
| <ul> |
| <li>Define a new enum constant with a short enum name, the new layout version |
| and description of the added feature.</li> |
| <li>When adding a layout version with an ancestor that is not same as |
| its immediate predecessor, use the constructor where a specific ancestor |
| can be passed. |
| </li> |
| </ul></div> |
| </li> |
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| <caption><span>Enum Constants</span><span class="tabEnd"> </span></caption> |
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| <th class="colOne" scope="col">Enum Constant and Description</th> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/protocol/LayoutVersion.Feature.html#ADD_DATANODE_AND_STORAGE_UUIDS">ADD_DATANODE_AND_STORAGE_UUIDS</a></span></code> </td> |
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| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hdfs/protocol/LayoutVersion.FeatureInfo.html" title="class in org.apache.hadoop.hdfs.protocol">LayoutVersion.FeatureInfo</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/protocol/LayoutVersion.Feature.html#getInfo--">getInfo</a></span>()</code> </td> |
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| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hdfs/protocol/LayoutVersion.Feature.html" title="enum in org.apache.hadoop.hdfs.protocol">LayoutVersion.Feature</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/protocol/LayoutVersion.Feature.html#valueOf-java.lang.String-">valueOf</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> name)</code> |
| <div class="block">Returns the enum constant of this type with the specified name.</div> |
| </td> |
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| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hdfs/protocol/LayoutVersion.Feature.html" title="enum in org.apache.hadoop.hdfs.protocol">LayoutVersion.Feature</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/protocol/LayoutVersion.Feature.html#values--">values</a></span>()</code> |
| <div class="block">Returns an array containing the constants of this enum type, in |
| the order they are declared.</div> |
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| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#compareTo-E-" title="class or interface in java.lang">compareTo</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#getDeclaringClass--" title="class or interface in java.lang">getDeclaringClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#name--" title="class or interface in java.lang">name</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#ordinal--" title="class or interface in java.lang">ordinal</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#valueOf-java.lang.Class-java.lang.String-" title="class or interface in java.lang">valueOf</a></code></li> |
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| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
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