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| <pre>@InterfaceStability.Unstable |
| public class <span class="strong">ConnectorUtils</span> |
| extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Utilities that connector implementations might find useful. Contains common building blocks |
| for writing connectors.</div> |
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| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/connect/util/ConnectorUtils.html#groupPartitions(java.util.List,%20int)">groupPartitions</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><T> elements, |
| int numGroups)</code> |
| <div class="block">Given a list of elements and a target number of groups, generates list of groups of |
| elements to match the target number of groups, spreading them evenly among the groups.</div> |
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| <pre>public ConnectorUtils()</pre> |
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| <h4>groupPartitions</h4> |
| <pre>public static <T> <a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><T>> groupPartitions(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><T> elements, |
| int numGroups)</pre> |
| <div class="block">Given a list of elements and a target number of groups, generates list of groups of |
| elements to match the target number of groups, spreading them evenly among the groups. |
| This generates groups with contiguous elements, which results in intuitive ordering if |
| your elements are also ordered (e.g. alphabetical lists of table names if you sort |
| table names alphabetically to generate the raw partitions) or can result in efficient |
| partitioning if elements are sorted according to some criteria that affects performance |
| (e.g. topic partitions with the same leader).</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>elements</code> - list of elements to partition</dd><dd><code>numGroups</code> - the number of output groups to generate.</dd></dl> |
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