/usr/share/doc/libbackport-util-concurrent-java/api/edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.ReadLock.html is in libbackport-util-concurrent-java-doc 3.1-3build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!-- NewPage -->
<html lang="en">
<head>
<!-- Generated by javadoc (version 1.7.0_03) on Fri May 18 11:21:08 UTC 2012 -->
<title>ReentrantReadWriteLock.ReadLock</title>
<meta name="date" content="2012-05-18">
<link rel="stylesheet" type="text/css" href="../../../../../../../../stylesheet.css" title="Style">
</head>
<body>
<script type="text/javascript"><!--
if (location.href.indexOf('is-external=true') == -1) {
parent.document.title="ReentrantReadWriteLock.ReadLock";
}
//-->
</script>
<noscript>
<div>JavaScript is disabled on your browser.</div>
</noscript>
<!-- ========= START OF TOP NAVBAR ======= -->
<div class="topNav"><a name="navbar_top">
<!-- -->
</a><a href="#skip-navbar_top" title="Skip navigation links"></a><a name="navbar_top_firstrow">
<!-- -->
</a>
<ul class="navList" title="Navigation">
<li><a href="../../../../../../../../overview-summary.html">Overview</a></li>
<li><a href="package-summary.html">Package</a></li>
<li class="navBarCell1Rev">Class</li>
<li><a href="package-tree.html">Tree</a></li>
<li><a href="../../../../../../../../deprecated-list.html">Deprecated</a></li>
<li><a href="../../../../../../../../index-all.html">Index</a></li>
<li><a href="../../../../../../../../help-doc.html">Help</a></li>
</ul>
</div>
<div class="subNav">
<ul class="navList">
<li><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.html" title="class in edu.emory.mathcs.backport.java.util.concurrent.locks"><span class="strong">Prev Class</span></a></li>
<li><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.WriteLock.html" title="class in edu.emory.mathcs.backport.java.util.concurrent.locks"><span class="strong">Next Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../../../../../../index.html?edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.ReadLock.html" target="_top">Frames</a></li>
<li><a href="ReentrantReadWriteLock.ReadLock.html" target="_top">No Frames</a></li>
</ul>
<ul class="navList" id="allclasses_navbar_top">
<li><a href="../../../../../../../../allclasses-noframe.html">All Classes</a></li>
</ul>
<div>
<script type="text/javascript"><!--
allClassesLink = document.getElementById("allclasses_navbar_top");
if(window==top) {
allClassesLink.style.display = "block";
}
else {
allClassesLink.style.display = "none";
}
//-->
</script>
</div>
<div>
<ul class="subNavList">
<li>Summary: </li>
<li>Nested | </li>
<li>Field | </li>
<li><a href="#constructor_summary">Constr</a> | </li>
<li><a href="#method_summary">Method</a></li>
</ul>
<ul class="subNavList">
<li>Detail: </li>
<li>Field | </li>
<li><a href="#constructor_detail">Constr</a> | </li>
<li><a href="#method_detail">Method</a></li>
</ul>
</div>
<a name="skip-navbar_top">
<!-- -->
</a></div>
<!-- ========= END OF TOP NAVBAR ========= -->
<!-- ======== START OF CLASS DATA ======== -->
<div class="header">
<div class="subTitle">edu.emory.mathcs.backport.java.util.concurrent.locks</div>
<h2 title="Class ReentrantReadWriteLock.ReadLock" class="title">Class ReentrantReadWriteLock.ReadLock</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>edu.emory.mathcs.backport.java.util.concurrent.locks.ReentrantReadWriteLock.ReadLock</li>
</ul>
</li>
</ul>
<div class="description">
<ul class="blockList">
<li class="blockList">
<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html" title="interface in edu.emory.mathcs.backport.java.util.concurrent.locks">Lock</a>, java.io.Serializable</dd>
</dl>
<dl>
<dt>Enclosing class:</dt>
<dd><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.html" title="class in edu.emory.mathcs.backport.java.util.concurrent.locks">ReentrantReadWriteLock</a></dd>
</dl>
<hr>
<br>
<pre>public static class <span class="strong">ReentrantReadWriteLock.ReadLock</span>
extends java.lang.Object
implements <a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html" title="interface in edu.emory.mathcs.backport.java.util.concurrent.locks">Lock</a>, java.io.Serializable</pre>
<div class="block">The lock returned by method <a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.html#readLock()"><code>ReentrantReadWriteLock.readLock()</code></a>.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../../../../serialized-form.html#edu.emory.mathcs.backport.java.util.concurrent.locks.ReentrantReadWriteLock.ReadLock">Serialized Form</a></dd></dl>
</li>
</ul>
</div>
<div class="summary">
<ul class="blockList">
<li class="blockList">
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<ul class="blockList">
<li class="blockList"><a name="constructor_summary">
<!-- -->
</a>
<h3>Constructor Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
<caption><span>Constructors</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier</th>
<th class="colLast" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected </code></td>
<td class="colLast"><code><strong><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.ReadLock.html#ReentrantReadWriteLock.ReadLock(edu.emory.mathcs.backport.java.util.concurrent.locks.ReentrantReadWriteLock)">ReentrantReadWriteLock.ReadLock</a></strong>(<a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.html" title="class in edu.emory.mathcs.backport.java.util.concurrent.locks">ReentrantReadWriteLock</a> lock)</code>
<div class="block">Constructor for use by subclasses</div>
</td>
</tr>
</table>
</li>
</ul>
<!-- ========== METHOD SUMMARY =========== -->
<ul class="blockList">
<li class="blockList"><a name="method_summary">
<!-- -->
</a>
<h3>Method Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span>Methods</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.ReadLock.html#lock()">lock</a></strong>()</code>
<div class="block">Acquires the read lock.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.ReadLock.html#lockInterruptibly()">lockInterruptibly</a></strong>()</code>
<div class="block">Acquires the read lock unless the current thread is
interrupted.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Condition.html" title="interface in edu.emory.mathcs.backport.java.util.concurrent.locks">Condition</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.ReadLock.html#newCondition()">newCondition</a></strong>()</code>
<div class="block">Throws <code>UnsupportedOperationException</code> because
<code>ReadLocks</code> do not support conditions.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.ReadLock.html#toString()">toString</a></strong>()</code>
<div class="block">Returns a string identifying this lock, as well as its lock state.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.ReadLock.html#tryLock()">tryLock</a></strong>()</code>
<div class="block">Acquires the read lock only if the write lock is not held by
another thread at the time of invocation.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.ReadLock.html#tryLock(long, edu.emory.mathcs.backport.java.util.concurrent.TimeUnit)">tryLock</a></strong>(long timeout,
<a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/TimeUnit.html" title="class in edu.emory.mathcs.backport.java.util.concurrent">TimeUnit</a> unit)</code>
<div class="block">Acquires the read lock if the write lock is not held by
another thread within the given waiting time and the
current thread has not been interrupted.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.ReadLock.html#unlock()">unlock</a></strong>()</code>
<div class="block">Attempts to release this lock.</div>
</td>
</tr>
</table>
<ul class="blockList">
<li class="blockList"><a name="methods_inherited_from_class_java.lang.Object">
<!-- -->
</a>
<h3>Methods inherited from class java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
<div class="details">
<ul class="blockList">
<li class="blockList">
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<ul class="blockList">
<li class="blockList"><a name="constructor_detail">
<!-- -->
</a>
<h3>Constructor Detail</h3>
<a name="ReentrantReadWriteLock.ReadLock(edu.emory.mathcs.backport.java.util.concurrent.locks.ReentrantReadWriteLock)">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>ReentrantReadWriteLock.ReadLock</h4>
<pre>protected ReentrantReadWriteLock.ReadLock(<a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.html" title="class in edu.emory.mathcs.backport.java.util.concurrent.locks">ReentrantReadWriteLock</a> lock)</pre>
<div class="block">Constructor for use by subclasses</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>lock</code> - the outer lock object</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - if the lock is null</dd></dl>
</li>
</ul>
</li>
</ul>
<!-- ============ METHOD DETAIL ========== -->
<ul class="blockList">
<li class="blockList"><a name="method_detail">
<!-- -->
</a>
<h3>Method Detail</h3>
<a name="lock()">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>lock</h4>
<pre>public void lock()</pre>
<div class="block">Acquires the read lock.
<p>Acquires the read lock if the write lock is not held by
another thread and returns immediately.
<p>If the write lock is held by another thread then
the current thread becomes disabled for thread scheduling
purposes and lies dormant until the read lock has been acquired.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html#lock()">lock</a></code> in interface <code><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html" title="interface in edu.emory.mathcs.backport.java.util.concurrent.locks">Lock</a></code></dd>
</dl>
</li>
</ul>
<a name="lockInterruptibly()">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>lockInterruptibly</h4>
<pre>public void lockInterruptibly()
throws java.lang.InterruptedException</pre>
<div class="block">Acquires the read lock unless the current thread is
interrupted.
<p>Acquires the read lock if the write lock is not held
by another thread and returns immediately.
<p>If the write lock is held by another thread then the
current thread becomes disabled for thread scheduling
purposes and lies dormant until one of two things happens:
<ul>
<li>The read lock is acquired by the current thread; or
<li>Some other thread interrupts
the current thread.
</ul>
<p>If the current thread:
<ul>
<li>has its interrupted status set on entry to this method; or
<li>is interrupted while
acquiring the read lock,
</ul>
then <code>InterruptedException</code> is thrown and the current
thread's interrupted status is cleared.
<p>In this implementation, as this method is an explicit
interruption point, preference is given to responding to
the interrupt over normal or reentrant acquisition of the
lock.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html#lockInterruptibly()">lockInterruptibly</a></code> in interface <code><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html" title="interface in edu.emory.mathcs.backport.java.util.concurrent.locks">Lock</a></code></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.InterruptedException</code> - if the current thread is interrupted</dd></dl>
</li>
</ul>
<a name="tryLock()">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>tryLock</h4>
<pre>public boolean tryLock()</pre>
<div class="block">Acquires the read lock only if the write lock is not held by
another thread at the time of invocation.
<p>Acquires the read lock if the write lock is not held by
another thread and returns immediately with the value
<code>true</code>. Even when this lock has been set to use a
fair ordering policy, a call to <code>tryLock()</code>
<em>will</em> immediately acquire the read lock if it is
available, whether or not other threads are currently
waiting for the read lock. This "barging" behavior
can be useful in certain circumstances, even though it
breaks fairness. If you want to honor the fairness setting
for this lock, then use <a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.ReadLock.html#tryLock(long, edu.emory.mathcs.backport.java.util.concurrent.TimeUnit)"><code>tryLock(0, TimeUnit.SECONDS) </code></a> which is almost equivalent
(it also detects interruption).
<p>If the write lock is held by another thread then
this method will return immediately with the value
<code>false</code>.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html#tryLock()">tryLock</a></code> in interface <code><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html" title="interface in edu.emory.mathcs.backport.java.util.concurrent.locks">Lock</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd><code>true</code> if the read lock was acquired</dd></dl>
</li>
</ul>
<a name="tryLock(long, edu.emory.mathcs.backport.java.util.concurrent.TimeUnit)">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>tryLock</h4>
<pre>public boolean tryLock(long timeout,
<a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/TimeUnit.html" title="class in edu.emory.mathcs.backport.java.util.concurrent">TimeUnit</a> unit)
throws java.lang.InterruptedException</pre>
<div class="block">Acquires the read lock if the write lock is not held by
another thread within the given waiting time and the
current thread has not been interrupted.
<p>Acquires the read lock if the write lock is not held by
another thread and returns immediately with the value
<code>true</code>. If this lock has been set to use a fair
ordering policy then an available lock <em>will not</em> be
acquired if any other threads are waiting for the
lock. This is in contrast to the <a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.ReadLock.html#tryLock()"><code>tryLock()</code></a>
method. If you want a timed <code>tryLock</code> that does
permit barging on a fair lock then combine the timed and
un-timed forms together:
<pre>if (lock.tryLock() || lock.tryLock(timeout, unit) ) { ... }
</pre>
<p>If the write lock is held by another thread then the
current thread becomes disabled for thread scheduling
purposes and lies dormant until one of three things happens:
<ul>
<li>The read lock is acquired by the current thread; or
<li>Some other thread interrupts
the current thread; or
<li>The specified waiting time elapses.
</ul>
<p>If the read lock is acquired then the value <code>true</code> is
returned.
<p>If the current thread:
<ul>
<li>has its interrupted status set on entry to this method; or
<li>is interrupted while
acquiring the read lock,
</ul> then <code>InterruptedException</code> is thrown and the
current thread's interrupted status is cleared.
<p>If the specified waiting time elapses then the value
<code>false</code> is returned. If the time is less than or
equal to zero, the method will not wait at all.
<p>In this implementation, as this method is an explicit
interruption point, preference is given to responding to
the interrupt over normal or reentrant acquisition of the
lock, and over reporting the elapse of the waiting time.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html#tryLock(long, edu.emory.mathcs.backport.java.util.concurrent.TimeUnit)">tryLock</a></code> in interface <code><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html" title="interface in edu.emory.mathcs.backport.java.util.concurrent.locks">Lock</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>timeout</code> - the time to wait for the read lock</dd><dd><code>unit</code> - the time unit of the timeout argument</dd>
<dt><span class="strong">Returns:</span></dt><dd><code>true</code> if the read lock was acquired</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.InterruptedException</code> - if the current thread is interrupted</dd>
<dd><code>java.lang.NullPointerException</code> - if the time unit is null</dd></dl>
</li>
</ul>
<a name="unlock()">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>unlock</h4>
<pre>public void unlock()</pre>
<div class="block">Attempts to release this lock.
<p> If the number of readers is now zero then the lock
is made available for write lock attempts.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html#unlock()">unlock</a></code> in interface <code><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html" title="interface in edu.emory.mathcs.backport.java.util.concurrent.locks">Lock</a></code></dd>
</dl>
</li>
</ul>
<a name="newCondition()">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>newCondition</h4>
<pre>public <a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Condition.html" title="interface in edu.emory.mathcs.backport.java.util.concurrent.locks">Condition</a> newCondition()</pre>
<div class="block">Throws <code>UnsupportedOperationException</code> because
<code>ReadLocks</code> do not support conditions.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html#newCondition()">newCondition</a></code> in interface <code><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Lock.html" title="interface in edu.emory.mathcs.backport.java.util.concurrent.locks">Lock</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>A new <a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/Condition.html" title="interface in edu.emory.mathcs.backport.java.util.concurrent.locks"><code>Condition</code></a> instance for this <code>Lock</code> instance</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.UnsupportedOperationException</code> - always</dd></dl>
</li>
</ul>
<a name="toString()">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>toString</h4>
<pre>public java.lang.String toString()</pre>
<div class="block">Returns a string identifying this lock, as well as its lock state.
The state, in brackets, includes the String <code>"Read locks ="</code>
followed by the number of held read locks.</div>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code>toString</code> in class <code>java.lang.Object</code></dd>
<dt><span class="strong">Returns:</span></dt><dd>a string identifying this lock, as well as its lock state</dd></dl>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
<!-- ========= END OF CLASS DATA ========= -->
<!-- ======= START OF BOTTOM NAVBAR ====== -->
<div class="bottomNav"><a name="navbar_bottom">
<!-- -->
</a><a href="#skip-navbar_bottom" title="Skip navigation links"></a><a name="navbar_bottom_firstrow">
<!-- -->
</a>
<ul class="navList" title="Navigation">
<li><a href="../../../../../../../../overview-summary.html">Overview</a></li>
<li><a href="package-summary.html">Package</a></li>
<li class="navBarCell1Rev">Class</li>
<li><a href="package-tree.html">Tree</a></li>
<li><a href="../../../../../../../../deprecated-list.html">Deprecated</a></li>
<li><a href="../../../../../../../../index-all.html">Index</a></li>
<li><a href="../../../../../../../../help-doc.html">Help</a></li>
</ul>
</div>
<div class="subNav">
<ul class="navList">
<li><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.html" title="class in edu.emory.mathcs.backport.java.util.concurrent.locks"><span class="strong">Prev Class</span></a></li>
<li><a href="../../../../../../../../edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.WriteLock.html" title="class in edu.emory.mathcs.backport.java.util.concurrent.locks"><span class="strong">Next Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../../../../../../index.html?edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantReadWriteLock.ReadLock.html" target="_top">Frames</a></li>
<li><a href="ReentrantReadWriteLock.ReadLock.html" target="_top">No Frames</a></li>
</ul>
<ul class="navList" id="allclasses_navbar_bottom">
<li><a href="../../../../../../../../allclasses-noframe.html">All Classes</a></li>
</ul>
<div>
<script type="text/javascript"><!--
allClassesLink = document.getElementById("allclasses_navbar_bottom");
if(window==top) {
allClassesLink.style.display = "block";
}
else {
allClassesLink.style.display = "none";
}
//-->
</script>
</div>
<div>
<ul class="subNavList">
<li>Summary: </li>
<li>Nested | </li>
<li>Field | </li>
<li><a href="#constructor_summary">Constr</a> | </li>
<li><a href="#method_summary">Method</a></li>
</ul>
<ul class="subNavList">
<li>Detail: </li>
<li>Field | </li>
<li><a href="#constructor_detail">Constr</a> | </li>
<li><a href="#method_detail">Method</a></li>
</ul>
</div>
<a name="skip-navbar_bottom">
<!-- -->
</a></div>
<!-- ======== END OF BOTTOM NAVBAR ======= -->
</body>
</html>
|