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| <h2 title="Class ListFunctionalSupport" class="title">Class ListFunctionalSupport</h2> |
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| <pre>public class <span class="typeNameLabel">ListFunctionalSupport</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block"><p>Implements missing sequence functions in Java compared to Clojure. To make thing simpler, it only supports List type.</p></div> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/daemon/utils/ListFunctionalSupport.html#ListFunctionalSupport--">ListFunctionalSupport</a></span>()</code> </td> |
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| <td class="colFirst"><code>static <T> <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><T></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/daemon/utils/ListFunctionalSupport.html#drop-java.util.List-int-">drop</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><T> list, |
| int count)</code> |
| <div class="block">Drop the first N elements and create a new list.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <T> T</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/daemon/utils/ListFunctionalSupport.html#first-java.util.List-">first</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><T> list)</code> |
| <div class="block">Get the first element in list.</div> |
| </td> |
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| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <T> T</code></td> |
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| <div class="block">get the last element in list.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <T> <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><T></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/daemon/utils/ListFunctionalSupport.html#rest-java.util.List-">rest</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><T> list)</code> |
| <div class="block">Drop the only first element and create a new list.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static <T> <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><T></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/daemon/utils/ListFunctionalSupport.html#takeLast-java.util.List-int-">takeLast</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><T> list, |
| int count)</code> |
| <div class="block">Get the last N elements as a new list.</div> |
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| <h4>ListFunctionalSupport</h4> |
| <pre>public ListFunctionalSupport()</pre> |
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| <h4>first</h4> |
| <pre>public static <T> T first(<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><T> list)</pre> |
| <div class="block"><p>Get the first element in list.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>list</code> - list to get</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the first element. null if list is null or empty.</dd> |
| </dl> |
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| <h4>last</h4> |
| <pre>public static <T> T last(<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><T> list)</pre> |
| <div class="block"><p>get the last element in list.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>list</code> - list to get</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the last element. null if list is null or empty.</dd> |
| </dl> |
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| <h4>takeLast</h4> |
| <pre>public static <T> <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><T> takeLast(<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><T> list, |
| int count)</pre> |
| <div class="block"><p>Get the last N elements as a new list.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>list</code> - list to get</dd> |
| <dd><code>count</code> - element count to get</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the first element. null if list is null. elements in a new list may be less than count if there’re not enough elements in the list.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>drop</h4> |
| <pre>public static <T> <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><T> drop(<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><T> list, |
| int count)</pre> |
| <div class="block"><p>Drop the first N elements and create a new list.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>list</code> - the list</dd> |
| <dd><code>count</code> - element count to drop</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>newly created sublist that drops the first N elements from origin list. null if list is null.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>rest</h4> |
| <pre>public static <T> <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><T> rest(<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><T> list)</pre> |
| <div class="block"><p>Drop the only first element and create a new list. equivalent to drop(list, 1).</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>list</code> - the list</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>newly created sublist that drops the first element from origin list. null if list is null.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><code>ListFunctionalSupport#drop(List, int)}</code></dd> |
| </dl> |
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