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| <div class="subTitle">org.apache.hadoop.hdfs.util</div> |
| <h2 title="Class LightWeightHashSet" class="title">Class LightWeightHashSet<T></h2> |
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| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightLinkedSet.html" title="class in org.apache.hadoop.hdfs.util">LightWeightLinkedSet</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public class <span class="typeNameLabel">LightWeightHashSet<T></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> |
| implements <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><T></pre> |
| <div class="block">A low memory linked hash set implementation, which uses an array for storing |
| the elements and linked lists for collision resolution. This class does not |
| support null element. |
| |
| This class is not thread safe.</div> |
| </li> |
| </ul> |
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| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected static float</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#DEFAULT_MAX_LOAD_FACTOR">DEFAULT_MAX_LOAD_FACTOR</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected static float</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#DEFAUT_MIN_LOAD_FACTOR">DEFAUT_MIN_LOAD_FACTOR</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected org.apache.hadoop.hdfs.util.LightWeightHashSet.LinkedElement<<a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a>>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#entries">entries</a></span></code> |
| <div class="block">An internal array of entries, which are the rows of the hash table.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#MINIMUM_CAPACITY">MINIMUM_CAPACITY</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#modification">modification</a></span></code> |
| <div class="block">Modification version for fail-fast.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#size">size</a></span></code> |
| <div class="block">The size of the set (not the entry array).</div> |
| </td> |
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| </li> |
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| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#LightWeightHashSet--">LightWeightHashSet</a></span>()</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#LightWeightHashSet-int-">LightWeightHashSet</a></span>(int minCapacity)</code> </td> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#LightWeightHashSet-int-float-float-">LightWeightHashSet</a></span>(int initCapacity, |
| float maxLoadFactor, |
| float minLoadFactor)</code> </td> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#add-T-">add</a></span>(<a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a> element)</code> |
| <div class="block">Add given element to the hash table.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#addAll-java.util.Collection-">addAll</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><? extends <a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a>> toAdd)</code> |
| <div class="block">All all elements in the collection.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#addElem-T-">addElem</a></span>(<a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a> element)</code> |
| <div class="block">Add given element to the hash table</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#clear--">clear</a></span>()</code> |
| <div class="block">Clear the set.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#contains-java.lang.Object-">contains</a></span>(<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> key)</code> |
| <div class="block">Check if the set contains given element</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#containsAll-java.util.Collection-">containsAll</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><?> c)</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#expandIfNecessary--">expandIfNecessary</a></span>()</code> |
| <div class="block">Checks if we need to expand, and expands if necessary.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#getCapacity--">getCapacity</a></span>()</code> |
| <div class="block">Return the current capacity (for testing).</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#getContainedElem-int-T-int-">getContainedElem</a></span>(int index, |
| <a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a> key, |
| int hashCode)</code> |
| <div class="block">Check if the set contains given element at given index.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#getElement-T-">getElement</a></span>(<a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a> key)</code> |
| <div class="block">Return the element in this set which is equal to |
| the given key, if such an element exists.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#getIndex-int-">getIndex</a></span>(int hashCode)</code> |
| <div class="block">Get index in the internal table for a given hash.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#isEmpty--">isEmpty</a></span>()</code> |
| <div class="block">Check if the set is empty.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a><<a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#iterator--">iterator</a></span>()</code> </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <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="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#pollAll--">pollAll</a></span>()</code> |
| <div class="block">Remove all elements from the set and return them.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <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="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#pollN-int-">pollN</a></span>(int n)</code> |
| <div class="block">Remove and return n elements from the hashtable.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#pollToArray-T:A-">pollToArray</a></span>(<a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a>[] array)</code> |
| <div class="block">Get array.length elements from the set, and put them into the array.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#printDetails-java.io.PrintStream-">printDetails</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/PrintStream.html?is-external=true" title="class or interface in java.io">PrintStream</a> out)</code> |
| <div class="block">Print detailed information of this object.</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#remove-java.lang.Object-">remove</a></span>(<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> key)</code> |
| <div class="block">Remove the element corresponding to the key.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#removeAll-java.util.Collection-">removeAll</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><?> c)</code> </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code>protected org.apache.hadoop.hdfs.util.LightWeightHashSet.LinkedElement<<a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#removeElem-T-">removeElem</a></span>(<a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html" title="type parameter in LightWeightHashSet">T</a> key)</code> |
| <div class="block">Remove the element corresponding to the key, given key.hashCode() == index.</div> |
| </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#retainAll-java.util.Collection-">retainAll</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><?> c)</code> </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#shrinkIfNecessary--">shrinkIfNecessary</a></span>()</code> |
| <div class="block">Checks if we need to shrink, and shrinks if necessary.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#size--">size</a></span>()</code> |
| <div class="block">Return the number of stored elements.</div> |
| </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code><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>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hdfs/util/LightWeightHashSet.html#toArray--">toArray</a></span>()</code> </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code><U> U[]</code></td> |
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