HashUtilities.html 24 KB

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  6. <title>HashUtilities (JFreeChart Class Library (version 1.0.19-fx))</title>
  7. <meta name="date" content="2014-07-31">
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  94. <div class="header">
  95. <div class="subTitle">org.jfree.chart</div>
  96. <h2 title="Class HashUtilities" class="title">Class HashUtilities</h2>
  97. </div>
  98. <div class="contentContainer">
  99. <ul class="inheritance">
  100. <li>java.lang.Object</li>
  101. <li>
  102. <ul class="inheritance">
  103. <li>org.jfree.chart.HashUtilities</li>
  104. </ul>
  105. </li>
  106. </ul>
  107. <div class="description">
  108. <ul class="blockList">
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  110. <hr>
  111. <br>
  112. <pre>public class <a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.61">HashUtilities</a>
  113. extends java.lang.Object</pre>
  114. <div class="block">Some utility methods for calculating hash codes.</div>
  115. <dl>
  116. <dt><span class="simpleTagLabel">Since:</span></dt>
  117. <dd>1.0.3</dd>
  118. </dl>
  119. </li>
  120. </ul>
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  132. <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
  133. <tr>
  134. <th class="colOne" scope="col">Constructor and Description</th>
  135. </tr>
  136. <tr class="altColor">
  137. <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#HashUtilities--">HashUtilities</a></span>()</code>&nbsp;</td>
  138. </tr>
  139. </table>
  140. </li>
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  142. <!-- ========== METHOD SUMMARY =========== -->
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  147. <h3>Method Summary</h3>
  148. <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
  149. <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
  150. <tr>
  151. <th class="colFirst" scope="col">Modifier and Type</th>
  152. <th class="colLast" scope="col">Method and Description</th>
  153. </tr>
  154. <tr id="i0" class="altColor">
  155. <td class="colFirst"><code>static int</code></td>
  156. <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#hashCode-int-boolean-">hashCode</a></span>(int&nbsp;pre,
  157. boolean&nbsp;b)</code>
  158. <div class="block">Returns a hash value based on a seed value and the value of a boolean
  159. primitive.</div>
  160. </td>
  161. </tr>
  162. <tr id="i1" class="rowColor">
  163. <td class="colFirst"><code>static int</code></td>
  164. <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#hashCode-int-org.jfree.util.BooleanList-">hashCode</a></span>(int&nbsp;pre,
  165. org.jfree.util.BooleanList&nbsp;list)</code>
  166. <div class="block">Computes a hash code for a <code>BooleanList</code>.</div>
  167. </td>
  168. </tr>
  169. <tr id="i2" class="altColor">
  170. <td class="colFirst"><code>static int</code></td>
  171. <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#hashCode-int-java.lang.Comparable-">hashCode</a></span>(int&nbsp;pre,
  172. java.lang.Comparable&nbsp;c)</code>
  173. <div class="block">Returns a hash value based on a seed value and a <code>Comparable</code>
  174. instance.</div>
  175. </td>
  176. </tr>
  177. <tr id="i3" class="rowColor">
  178. <td class="colFirst"><code>static int</code></td>
  179. <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#hashCode-int-double-">hashCode</a></span>(int&nbsp;pre,
  180. double&nbsp;d)</code>
  181. <div class="block">Returns a hash value based on a seed value and the value of a double
  182. primitive.</div>
  183. </td>
  184. </tr>
  185. <tr id="i4" class="altColor">
  186. <td class="colFirst"><code>static int</code></td>
  187. <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#hashCode-int-int-">hashCode</a></span>(int&nbsp;pre,
  188. int&nbsp;i)</code>
  189. <div class="block">Returns a hash value based on a seed value and the value of an int
  190. primitive.</div>
  191. </td>
  192. </tr>
  193. <tr id="i5" class="rowColor">
  194. <td class="colFirst"><code>static int</code></td>
  195. <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#hashCode-int-java.lang.Object-">hashCode</a></span>(int&nbsp;pre,
  196. java.lang.Object&nbsp;obj)</code>
  197. <div class="block">Returns a hash value based on a seed value and an <code>Object</code>
  198. instance.</div>
  199. </td>
  200. </tr>
  201. <tr id="i6" class="altColor">
  202. <td class="colFirst"><code>static int</code></td>
  203. <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#hashCode-int-java.awt.Paint-">hashCode</a></span>(int&nbsp;pre,
  204. java.awt.Paint&nbsp;p)</code>
  205. <div class="block">Returns a hash value based on a seed value and a paint instance.</div>
  206. </td>
  207. </tr>
  208. <tr id="i7" class="rowColor">
  209. <td class="colFirst"><code>static int</code></td>
  210. <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#hashCode-int-org.jfree.util.PaintList-">hashCode</a></span>(int&nbsp;pre,
  211. org.jfree.util.PaintList&nbsp;list)</code>
  212. <div class="block">Computes a hash code for a <code>PaintList</code>.</div>
  213. </td>
  214. </tr>
  215. <tr id="i8" class="altColor">
  216. <td class="colFirst"><code>static int</code></td>
  217. <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#hashCode-int-java.lang.String-">hashCode</a></span>(int&nbsp;pre,
  218. java.lang.String&nbsp;s)</code>
  219. <div class="block">Returns a hash value based on a seed value and a string instance.</div>
  220. </td>
  221. </tr>
  222. <tr id="i9" class="rowColor">
  223. <td class="colFirst"><code>static int</code></td>
  224. <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#hashCode-int-java.awt.Stroke-">hashCode</a></span>(int&nbsp;pre,
  225. java.awt.Stroke&nbsp;s)</code>
  226. <div class="block">Returns a hash value based on a seed value and a stroke instance.</div>
  227. </td>
  228. </tr>
  229. <tr id="i10" class="altColor">
  230. <td class="colFirst"><code>static int</code></td>
  231. <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#hashCode-int-org.jfree.util.StrokeList-">hashCode</a></span>(int&nbsp;pre,
  232. org.jfree.util.StrokeList&nbsp;list)</code>
  233. <div class="block">Computes a hash code for a <code>StrokeList</code>.</div>
  234. </td>
  235. </tr>
  236. <tr id="i11" class="rowColor">
  237. <td class="colFirst"><code>static int</code></td>
  238. <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#hashCodeForDoubleArray-double:A-">hashCodeForDoubleArray</a></span>(double[]&nbsp;a)</code>
  239. <div class="block">Returns a hash code for a <code>double[]</code> instance.</div>
  240. </td>
  241. </tr>
  242. <tr id="i12" class="altColor">
  243. <td class="colFirst"><code>static int</code></td>
  244. <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/jfree/chart/HashUtilities.html#hashCodeForPaint-java.awt.Paint-">hashCodeForPaint</a></span>(java.awt.Paint&nbsp;p)</code>
  245. <div class="block">Returns a hash code for a <code>Paint</code> instance.</div>
  246. </td>
  247. </tr>
  248. </table>
  249. <ul class="blockList">
  250. <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
  251. <!-- -->
  252. </a>
  253. <h3>Methods inherited from class&nbsp;java.lang.Object</h3>
  254. <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
  255. </ul>
  256. </li>
  257. </ul>
  258. </li>
  259. </ul>
  260. </div>
  261. <div class="details">
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  264. <!-- ========= CONSTRUCTOR DETAIL ======== -->
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  266. <li class="blockList"><a name="constructor.detail">
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  268. </a>
  269. <h3>Constructor Detail</h3>
  270. <a name="HashUtilities--">
  271. <!-- -->
  272. </a>
  273. <ul class="blockListLast">
  274. <li class="blockList">
  275. <h4>HashUtilities</h4>
  276. <pre>public&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.61">HashUtilities</a>()</pre>
  277. </li>
  278. </ul>
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  286. <h3>Method Detail</h3>
  287. <a name="hashCodeForPaint-java.awt.Paint-">
  288. <!-- -->
  289. </a>
  290. <ul class="blockList">
  291. <li class="blockList">
  292. <h4>hashCodeForPaint</h4>
  293. <pre>public static&nbsp;int&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.71">hashCodeForPaint</a>(java.awt.Paint&nbsp;p)</pre>
  294. <div class="block">Returns a hash code for a <code>Paint</code> instance. If
  295. <code>p</code> is <code>null</code>, this method returns zero.</div>
  296. <dl>
  297. <dt><span class="paramLabel">Parameters:</span></dt>
  298. <dd><code>p</code> - the paint (<code>null</code> permitted).</dd>
  299. <dt><span class="returnLabel">Returns:</span></dt>
  300. <dd>The hash code.</dd>
  301. </dl>
  302. </li>
  303. </ul>
  304. <a name="hashCodeForDoubleArray-double:A-">
  305. <!-- -->
  306. </a>
  307. <ul class="blockList">
  308. <li class="blockList">
  309. <h4>hashCodeForDoubleArray</h4>
  310. <pre>public static&nbsp;int&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.102">hashCodeForDoubleArray</a>(double[]&nbsp;a)</pre>
  311. <div class="block">Returns a hash code for a <code>double[]</code> instance. If the array
  312. is <code>null</code>, this method returns zero.</div>
  313. <dl>
  314. <dt><span class="paramLabel">Parameters:</span></dt>
  315. <dd><code>a</code> - the array (<code>null</code> permitted).</dd>
  316. <dt><span class="returnLabel">Returns:</span></dt>
  317. <dd>The hash code.</dd>
  318. </dl>
  319. </li>
  320. </ul>
  321. <a name="hashCode-int-boolean-">
  322. <!-- -->
  323. </a>
  324. <ul class="blockList">
  325. <li class="blockList">
  326. <h4>hashCode</h4>
  327. <pre>public static&nbsp;int&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.126">hashCode</a>(int&nbsp;pre,
  328. boolean&nbsp;b)</pre>
  329. <div class="block">Returns a hash value based on a seed value and the value of a boolean
  330. primitive.</div>
  331. <dl>
  332. <dt><span class="paramLabel">Parameters:</span></dt>
  333. <dd><code>pre</code> - the seed value.</dd>
  334. <dd><code>b</code> - the boolean value.</dd>
  335. <dt><span class="returnLabel">Returns:</span></dt>
  336. <dd>A hash value.</dd>
  337. <dt><span class="simpleTagLabel">Since:</span></dt>
  338. <dd>1.0.7</dd>
  339. </dl>
  340. </li>
  341. </ul>
  342. <a name="hashCode-int-int-">
  343. <!-- -->
  344. </a>
  345. <ul class="blockList">
  346. <li class="blockList">
  347. <h4>hashCode</h4>
  348. <pre>public static&nbsp;int&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.141">hashCode</a>(int&nbsp;pre,
  349. int&nbsp;i)</pre>
  350. <div class="block">Returns a hash value based on a seed value and the value of an int
  351. primitive.</div>
  352. <dl>
  353. <dt><span class="paramLabel">Parameters:</span></dt>
  354. <dd><code>pre</code> - the seed value.</dd>
  355. <dd><code>i</code> - the int value.</dd>
  356. <dt><span class="returnLabel">Returns:</span></dt>
  357. <dd>A hash value.</dd>
  358. <dt><span class="simpleTagLabel">Since:</span></dt>
  359. <dd>1.0.8</dd>
  360. </dl>
  361. </li>
  362. </ul>
  363. <a name="hashCode-int-double-">
  364. <!-- -->
  365. </a>
  366. <ul class="blockList">
  367. <li class="blockList">
  368. <h4>hashCode</h4>
  369. <pre>public static&nbsp;int&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.156">hashCode</a>(int&nbsp;pre,
  370. double&nbsp;d)</pre>
  371. <div class="block">Returns a hash value based on a seed value and the value of a double
  372. primitive.</div>
  373. <dl>
  374. <dt><span class="paramLabel">Parameters:</span></dt>
  375. <dd><code>pre</code> - the seed value.</dd>
  376. <dd><code>d</code> - the double value.</dd>
  377. <dt><span class="returnLabel">Returns:</span></dt>
  378. <dd>A hash value.</dd>
  379. <dt><span class="simpleTagLabel">Since:</span></dt>
  380. <dd>1.0.7</dd>
  381. </dl>
  382. </li>
  383. </ul>
  384. <a name="hashCode-int-java.awt.Paint-">
  385. <!-- -->
  386. </a>
  387. <ul class="blockList">
  388. <li class="blockList">
  389. <h4>hashCode</h4>
  390. <pre>public static&nbsp;int&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.171">hashCode</a>(int&nbsp;pre,
  391. java.awt.Paint&nbsp;p)</pre>
  392. <div class="block">Returns a hash value based on a seed value and a paint instance.</div>
  393. <dl>
  394. <dt><span class="paramLabel">Parameters:</span></dt>
  395. <dd><code>pre</code> - the seed value.</dd>
  396. <dd><code>p</code> - the paint (<code>null</code> permitted).</dd>
  397. <dt><span class="returnLabel">Returns:</span></dt>
  398. <dd>A hash value.</dd>
  399. <dt><span class="simpleTagLabel">Since:</span></dt>
  400. <dd>1.0.7</dd>
  401. </dl>
  402. </li>
  403. </ul>
  404. <a name="hashCode-int-java.awt.Stroke-">
  405. <!-- -->
  406. </a>
  407. <ul class="blockList">
  408. <li class="blockList">
  409. <h4>hashCode</h4>
  410. <pre>public static&nbsp;int&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.185">hashCode</a>(int&nbsp;pre,
  411. java.awt.Stroke&nbsp;s)</pre>
  412. <div class="block">Returns a hash value based on a seed value and a stroke instance.</div>
  413. <dl>
  414. <dt><span class="paramLabel">Parameters:</span></dt>
  415. <dd><code>pre</code> - the seed value.</dd>
  416. <dd><code>s</code> - the stroke (<code>null</code> permitted).</dd>
  417. <dt><span class="returnLabel">Returns:</span></dt>
  418. <dd>A hash value.</dd>
  419. <dt><span class="simpleTagLabel">Since:</span></dt>
  420. <dd>1.0.7</dd>
  421. </dl>
  422. </li>
  423. </ul>
  424. <a name="hashCode-int-java.lang.String-">
  425. <!-- -->
  426. </a>
  427. <ul class="blockList">
  428. <li class="blockList">
  429. <h4>hashCode</h4>
  430. <pre>public static&nbsp;int&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.200">hashCode</a>(int&nbsp;pre,
  431. java.lang.String&nbsp;s)</pre>
  432. <div class="block">Returns a hash value based on a seed value and a string instance.</div>
  433. <dl>
  434. <dt><span class="paramLabel">Parameters:</span></dt>
  435. <dd><code>pre</code> - the seed value.</dd>
  436. <dd><code>s</code> - the string (<code>null</code> permitted).</dd>
  437. <dt><span class="returnLabel">Returns:</span></dt>
  438. <dd>A hash value.</dd>
  439. <dt><span class="simpleTagLabel">Since:</span></dt>
  440. <dd>1.0.7</dd>
  441. </dl>
  442. </li>
  443. </ul>
  444. <a name="hashCode-int-java.lang.Comparable-">
  445. <!-- -->
  446. </a>
  447. <ul class="blockList">
  448. <li class="blockList">
  449. <h4>hashCode</h4>
  450. <pre>public static&nbsp;int&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.216">hashCode</a>(int&nbsp;pre,
  451. java.lang.Comparable&nbsp;c)</pre>
  452. <div class="block">Returns a hash value based on a seed value and a <code>Comparable</code>
  453. instance.</div>
  454. <dl>
  455. <dt><span class="paramLabel">Parameters:</span></dt>
  456. <dd><code>pre</code> - the seed value.</dd>
  457. <dd><code>c</code> - the comparable (<code>null</code> permitted).</dd>
  458. <dt><span class="returnLabel">Returns:</span></dt>
  459. <dd>A hash value.</dd>
  460. <dt><span class="simpleTagLabel">Since:</span></dt>
  461. <dd>1.0.7</dd>
  462. </dl>
  463. </li>
  464. </ul>
  465. <a name="hashCode-int-java.lang.Object-">
  466. <!-- -->
  467. </a>
  468. <ul class="blockList">
  469. <li class="blockList">
  470. <h4>hashCode</h4>
  471. <pre>public static&nbsp;int&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.232">hashCode</a>(int&nbsp;pre,
  472. java.lang.Object&nbsp;obj)</pre>
  473. <div class="block">Returns a hash value based on a seed value and an <code>Object</code>
  474. instance.</div>
  475. <dl>
  476. <dt><span class="paramLabel">Parameters:</span></dt>
  477. <dd><code>pre</code> - the seed value.</dd>
  478. <dd><code>obj</code> - the object (<code>null</code> permitted).</dd>
  479. <dt><span class="returnLabel">Returns:</span></dt>
  480. <dd>A hash value.</dd>
  481. <dt><span class="simpleTagLabel">Since:</span></dt>
  482. <dd>1.0.8</dd>
  483. </dl>
  484. </li>
  485. </ul>
  486. <a name="hashCode-int-org.jfree.util.BooleanList-">
  487. <!-- -->
  488. </a>
  489. <ul class="blockList">
  490. <li class="blockList">
  491. <h4>hashCode</h4>
  492. <pre>public static&nbsp;int&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.250">hashCode</a>(int&nbsp;pre,
  493. org.jfree.util.BooleanList&nbsp;list)</pre>
  494. <div class="block">Computes a hash code for a <code>BooleanList</code>. In the latest version
  495. of JCommon, the <code>BooleanList</code> class should implement the hashCode()
  496. method correctly, but we compute it here anyway so that we can work with
  497. older versions of JCommon (back to 1.0.0).</div>
  498. <dl>
  499. <dt><span class="paramLabel">Parameters:</span></dt>
  500. <dd><code>pre</code> - the seed value.</dd>
  501. <dd><code>list</code> - the list (<code>null</code> permitted).</dd>
  502. <dt><span class="returnLabel">Returns:</span></dt>
  503. <dd>The hash code.</dd>
  504. <dt><span class="simpleTagLabel">Since:</span></dt>
  505. <dd>1.0.9</dd>
  506. </dl>
  507. </li>
  508. </ul>
  509. <a name="hashCode-int-org.jfree.util.PaintList-">
  510. <!-- -->
  511. </a>
  512. <ul class="blockList">
  513. <li class="blockList">
  514. <h4>hashCode</h4>
  515. <pre>public static&nbsp;int&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.287">hashCode</a>(int&nbsp;pre,
  516. org.jfree.util.PaintList&nbsp;list)</pre>
  517. <div class="block">Computes a hash code for a <code>PaintList</code>. In the latest version
  518. of JCommon, the <code>PaintList</code> class should implement the hashCode()
  519. method correctly, but we compute it here anyway so that we can work with
  520. older versions of JCommon (back to 1.0.0).</div>
  521. <dl>
  522. <dt><span class="paramLabel">Parameters:</span></dt>
  523. <dd><code>pre</code> - the seed value.</dd>
  524. <dd><code>list</code> - the list (<code>null</code> permitted).</dd>
  525. <dt><span class="returnLabel">Returns:</span></dt>
  526. <dd>The hash code.</dd>
  527. <dt><span class="simpleTagLabel">Since:</span></dt>
  528. <dd>1.0.9</dd>
  529. </dl>
  530. </li>
  531. </ul>
  532. <a name="hashCode-int-org.jfree.util.StrokeList-">
  533. <!-- -->
  534. </a>
  535. <ul class="blockListLast">
  536. <li class="blockList">
  537. <h4>hashCode</h4>
  538. <pre>public static&nbsp;int&nbsp;<a href="../../../src-html/org/jfree/chart/HashUtilities.html#line.324">hashCode</a>(int&nbsp;pre,
  539. org.jfree.util.StrokeList&nbsp;list)</pre>
  540. <div class="block">Computes a hash code for a <code>StrokeList</code>. In the latest version
  541. of JCommon, the <code>StrokeList</code> class should implement the hashCode()
  542. method correctly, but we compute it here anyway so that we can work with
  543. older versions of JCommon (back to 1.0.0).</div>
  544. <dl>
  545. <dt><span class="paramLabel">Parameters:</span></dt>
  546. <dd><code>pre</code> - the seed value.</dd>
  547. <dd><code>list</code> - the list (<code>null</code> permitted).</dd>
  548. <dt><span class="returnLabel">Returns:</span></dt>
  549. <dd>The hash code.</dd>
  550. <dt><span class="simpleTagLabel">Since:</span></dt>
  551. <dd>1.0.9</dd>
  552. </dl>
  553. </li>
  554. </ul>
  555. </li>
  556. </ul>
  557. </li>
  558. </ul>
  559. </div>
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