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| <pre>@InterfaceAudience.Public |
| public enum <a href="../../../../../src-html/org/apache/hadoop/hbase/client/Consistency.html#line.27">Consistency</a> |
| 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/hbase/client/Consistency.html" title="enum in org.apache.hadoop.hbase.client">Consistency</a>></pre> |
| <div class="block">Consistency defines the expected consistency level for an operation.</div> |
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| <h3>Enum Constant Summary</h3> |
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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/hbase/client/Consistency.html#STRONG">STRONG</a></span></code> |
| <div class="block">Strong consistency is the default consistency model in HBase, |
| where reads and writes go through a single server which serializes |
| the updates, and returns all data that was written and ack'd.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/Consistency.html#TIMELINE">TIMELINE</a></span></code> |
| <div class="block">Timeline consistent reads might return values that may not see |
| the most recent updates.</div> |
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| <td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hbase/client/Consistency.html" title="enum in org.apache.hadoop.hbase.client">Consistency</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/Consistency.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="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hbase/client/Consistency.html" title="enum in org.apache.hadoop.hbase.client">Consistency</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/Consistency.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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| <a name="STRONG"> |
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| <h4>STRONG</h4> |
| <pre>public static final <a href="../../../../../org/apache/hadoop/hbase/client/Consistency.html" title="enum in org.apache.hadoop.hbase.client">Consistency</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/client/Consistency.html#line.34">STRONG</a></pre> |
| <div class="block">Strong consistency is the default consistency model in HBase, |
| where reads and writes go through a single server which serializes |
| the updates, and returns all data that was written and ack'd.</div> |
| </li> |
| </ul> |
| <a name="TIMELINE"> |
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| <h4>TIMELINE</h4> |
| <pre>public static final <a href="../../../../../org/apache/hadoop/hbase/client/Consistency.html" title="enum in org.apache.hadoop.hbase.client">Consistency</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/client/Consistency.html#line.47">TIMELINE</a></pre> |
| <div class="block">Timeline consistent reads might return values that may not see |
| the most recent updates. Write transactions are always performed |
| in strong consistency model in HBase which guarantees that transactions |
| are ordered, and replayed in the same order by all copies of the data. |
| In timeline consistency, the get and scan requests can be answered from data |
| that may be stale. |
| <br> |
| The client may still observe transactions out of order if the requests are |
| responded from different servers.</div> |
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| <h4>values</h4> |
| <pre>public static <a href="../../../../../org/apache/hadoop/hbase/client/Consistency.html" title="enum in org.apache.hadoop.hbase.client">Consistency</a>[] <a href="../../../../../src-html/org/apache/hadoop/hbase/client/Consistency.html#line.24">values</a>()</pre> |
| <div class="block">Returns an array containing the constants of this enum type, in |
| the order they are declared. This method may be used to iterate |
| over the constants as follows: |
| <pre> |
| for (Consistency c : Consistency.values()) |
| System.out.println(c); |
| </pre></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an array containing the constants of this enum type, in the order they are declared</dd> |
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| <pre>public static <a href="../../../../../org/apache/hadoop/hbase/client/Consistency.html" title="enum in org.apache.hadoop.hbase.client">Consistency</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/client/Consistency.html#line.24">valueOf</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> name)</pre> |
| <div class="block">Returns the enum constant of this type with the specified name. |
| The string must match <i>exactly</i> an identifier used to declare an |
| enum constant in this type. (Extraneous whitespace characters are |
| not permitted.)</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - the name of the enum constant to be returned.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the enum constant with the specified name</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if this enum type has no constant with the specified name</dd> |
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