/usr/share/doc/libservlet3.1-java/api/javax/servlet/jsp/JspContext.html is in libservlet3.1-java-doc 8.0.32-1ubuntu1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!-- NewPage -->
<html>
<head>
<!-- Generated by javadoc -->
<title>JspContext (Tomcat API Documentation)</title>
<link rel="stylesheet" type="text/css" href="../../../stylesheet.css" title="Style">
<script type="text/javascript" src="../../../script.js"></script>
</head>
<body>
<script type="text/javascript"><!--
try {
if (location.href.indexOf('is-external=true') == -1) {
parent.document.title="JspContext (Tomcat API Documentation)";
}
}
catch(err) {
}
//-->
var methods = {"i0":6,"i1":6,"i2":6,"i3":6,"i4":6,"i5":6,"i6":38,"i7":6,"i8":38,"i9":10,"i10":10,"i11":6,"i12":6,"i13":6,"i14":6};
var tabs = {65535:["t0","All Methods"],2:["t2","Instance Methods"],4:["t3","Abstract Methods"],8:["t4","Concrete Methods"],32:["t6","Deprecated Methods"]};
var altColor = "altColor";
var rowColor = "rowColor";
var tableTab = "tableTab";
var activeTableTab = "activeTableTab";
</script>
<noscript>
<div>JavaScript is disabled on your browser.</div>
</noscript>
<!-- ========= START OF TOP NAVBAR ======= -->
<div class="topNav"><a name="navbar.top">
<!-- -->
</a>
<div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div>
<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="../../../javax/servlet/jsp/JspApplicationContext.html" title="interface in javax.servlet.jsp"><span class="typeNameLink">Prev Class</span></a></li>
<li><a href="../../../javax/servlet/jsp/JspEngineInfo.html" title="class in javax.servlet.jsp"><span class="typeNameLink">Next Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../index.html?javax/servlet/jsp/JspContext.html" target="_top">Frames</a></li>
<li><a href="JspContext.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">javax.servlet.jsp</div>
<h2 title="Class JspContext" class="title">Class JspContext</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>javax.servlet.jsp.JspContext</li>
</ul>
</li>
</ul>
<div class="description">
<ul class="blockList">
<li class="blockList">
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../javax/servlet/jsp/PageContext.html" title="class in javax.servlet.jsp">PageContext</a></dd>
</dl>
<hr>
<br>
<pre>public abstract class <span class="typeNameLabel">JspContext</span>
extends java.lang.Object</pre>
<div class="block"><p>
<code>JspContext</code> serves as the base class for the
PageContext class and abstracts all information that is not specific
to servlets. This allows for Simple Tag Extensions to be used
outside of the context of a request/response Servlet.
<p>
The JspContext provides a number of facilities to the
page/component author and page implementor, including:
<ul>
<li>a single API to manage the various scoped namespaces
<li>a mechanism to obtain the JspWriter for output
<li>a mechanism to expose page directive attributes to the
scripting environment
</ul>
<p><B>Methods Intended for Container Generated Code</B>
<p>
The following methods enable the <B>management of nested</B> JspWriter
streams to implement Tag Extensions: <code>pushBody()</code> and
<code>popBody()</code>
<p><B>Methods Intended for JSP authors</B>
<p>
Some methods provide <B>uniform access</B> to the diverse objects
representing scopes.
The implementation must use the underlying machinery
corresponding to that scope, so information can be passed back and
forth between the underlying environment (e.g. Servlets) and JSP pages.
The methods are:
<code>setAttribute()</code>, <code>getAttribute()</code>,
<code>findAttribute()</code>, <code>removeAttribute()</code>,
<code>getAttributesScope()</code> and
<code>getAttributeNamesInScope()</code>.
<p>
The following methods provide <B>convenient access</B> to implicit objects:
<code>getOut()</code>
<p>
The following methods provide <B>programmatic access</b> to the
Expression Language evaluator:
<code>getExpressionEvaluator()</code>, <code>getVariableResolver()</code></div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.0</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="memberSummary" 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="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#JspContext--">JspContext</a></span>()</code>
<div class="block">Sole constructor.</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="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="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract 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><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated 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>abstract java.lang.Object</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#findAttribute-java.lang.String-">findAttribute</a></span>(java.lang.String name)</code>
<div class="block">Searches for the named attribute in page, request, session (if valid),
and application scope(s) in order and returns the value associated or
null.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>abstract java.lang.Object</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#getAttribute-java.lang.String-">getAttribute</a></span>(java.lang.String name)</code>
<div class="block">Returns the object associated with the name in the page scope or null
if not found.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>abstract java.lang.Object</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#getAttribute-java.lang.String-int-">getAttribute</a></span>(java.lang.String name,
int scope)</code>
<div class="block">Return the object associated with the name in the specified
scope or null if not found.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>abstract java.util.Enumeration<java.lang.String></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#getAttributeNamesInScope-int-">getAttributeNamesInScope</a></span>(int scope)</code>
<div class="block">Enumerate all the attributes in a given scope.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>abstract int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#getAttributesScope-java.lang.String-">getAttributesScope</a></span>(java.lang.String name)</code>
<div class="block">Get the scope where a given attribute is defined.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>abstract <a href="../../../javax/el/ELContext.html" title="class in javax.el">ELContext</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#getELContext--">getELContext</a></span>()</code> </td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>abstract <a href="../../../javax/servlet/jsp/el/ExpressionEvaluator.html" title="class in javax.servlet.jsp.el">ExpressionEvaluator</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#getExpressionEvaluator--">getExpressionEvaluator</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>
<div class="block"><span class="deprecationComment">As of JSP 2.1, replaced by
JspApplicationContext.getExpressionFactory()</span></div>
</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>abstract <a href="../../../javax/servlet/jsp/JspWriter.html" title="class in javax.servlet.jsp">JspWriter</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#getOut--">getOut</a></span>()</code>
<div class="block">The current value of the out object (a JspWriter).</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>abstract <a href="../../../javax/servlet/jsp/el/VariableResolver.html" title="interface in javax.servlet.jsp.el">VariableResolver</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#getVariableResolver--">getVariableResolver</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>
<div class="block"><span class="deprecationComment">As of JSP 2.1,
replaced by javax.el.ELContext.getELResolver()
which can be obtained by
jspContext.getELContext().getELResolver()</span></div>
</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="../../../javax/servlet/jsp/JspWriter.html" title="class in javax.servlet.jsp">JspWriter</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#popBody--">popBody</a></span>()</code>
<div class="block">Return the previous JspWriter "out" saved by the matching
pushBody(), and update the value of the "out" attribute in
the page scope attribute namespace of the JspContext.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="../../../javax/servlet/jsp/JspWriter.html" title="class in javax.servlet.jsp">JspWriter</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#pushBody-java.io.Writer-">pushBody</a></span>(java.io.Writer writer)</code>
<div class="block">Return a new JspWriter object that sends output to the
provided Writer.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#removeAttribute-java.lang.String-">removeAttribute</a></span>(java.lang.String name)</code>
<div class="block">Remove the object reference associated with the given name
from all scopes.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#removeAttribute-java.lang.String-int-">removeAttribute</a></span>(java.lang.String name,
int scope)</code>
<div class="block">Remove the object reference associated with the specified name
in the given scope.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#setAttribute-java.lang.String-java.lang.Object-">setAttribute</a></span>(java.lang.String name,
java.lang.Object value)</code>
<div class="block">Register the name and value specified with page scope semantics.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#setAttribute-java.lang.String-java.lang.Object-int-">setAttribute</a></span>(java.lang.String name,
java.lang.Object value,
int scope)</code>
<div class="block">Register the name and value specified with appropriate
scope semantics.</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, toString, 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="JspContext--">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>JspContext</h4>
<pre>public JspContext()</pre>
<div class="block">Sole constructor. (For invocation by subclass constructors,
typically implicit.)</div>
</li>
</ul>
</li>
</ul>
<!-- ============ METHOD DETAIL ========== -->
<ul class="blockList">
<li class="blockList"><a name="method.detail">
<!-- -->
</a>
<h3>Method Detail</h3>
<a name="setAttribute-java.lang.String-java.lang.Object-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>setAttribute</h4>
<pre>public abstract void setAttribute(java.lang.String name,
java.lang.Object value)</pre>
<div class="block">Register the name and value specified with page scope semantics.
If the value passed in is <code>null</code>, this has the same
effect as calling
<code>removeAttribute( name, PageContext.PAGE_SCOPE )</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - the name of the attribute to set</dd>
<dd><code>value</code> - the value to associate with the name, or null if the
attribute is to be removed from the page scope.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - if the name is null</dd>
</dl>
</li>
</ul>
<a name="setAttribute-java.lang.String-java.lang.Object-int-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>setAttribute</h4>
<pre>public abstract void setAttribute(java.lang.String name,
java.lang.Object value,
int scope)</pre>
<div class="block">Register the name and value specified with appropriate
scope semantics. If the value passed in is <code>null</code>,
this has the same effect as calling
<code>removeAttribute( name, scope )</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - the name of the attribute to set</dd>
<dd><code>value</code> - the object to associate with the name, or null if
the attribute is to be removed from the specified scope.</dd>
<dd><code>scope</code> - the scope with which to associate the name/object</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - if the name is null</dd>
<dd><code>java.lang.IllegalArgumentException</code> - if the scope is invalid</dd>
<dd><code>java.lang.IllegalStateException</code> - if the scope is
PageContext.SESSION_SCOPE but the page that was requested
does not participate in a session or the session has been
invalidated.</dd>
</dl>
</li>
</ul>
<a name="getAttribute-java.lang.String-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getAttribute</h4>
<pre>public abstract java.lang.Object getAttribute(java.lang.String name)</pre>
<div class="block">Returns the object associated with the name in the page scope or null
if not found.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - the name of the attribute to get</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the object associated with the name in the page scope
or null if not found.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - if the name is null</dd>
</dl>
</li>
</ul>
<a name="getAttribute-java.lang.String-int-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getAttribute</h4>
<pre>public abstract java.lang.Object getAttribute(java.lang.String name,
int scope)</pre>
<div class="block">Return the object associated with the name in the specified
scope or null if not found.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - the name of the attribute to set</dd>
<dd><code>scope</code> - the scope with which to associate the name/object</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the object associated with the name in the specified
scope or null if not found.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - if the name is null</dd>
<dd><code>java.lang.IllegalArgumentException</code> - if the scope is invalid</dd>
<dd><code>java.lang.IllegalStateException</code> - if the scope is
PageContext.SESSION_SCOPE but the page that was requested
does not participate in a session or the session has been
invalidated.</dd>
</dl>
</li>
</ul>
<a name="findAttribute-java.lang.String-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>findAttribute</h4>
<pre>public abstract java.lang.Object findAttribute(java.lang.String name)</pre>
<div class="block">Searches for the named attribute in page, request, session (if valid),
and application scope(s) in order and returns the value associated or
null.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - the name of the attribute to search for</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the value associated or null</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - if the name is null</dd>
</dl>
</li>
</ul>
<a name="removeAttribute-java.lang.String-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>removeAttribute</h4>
<pre>public abstract void removeAttribute(java.lang.String name)</pre>
<div class="block">Remove the object reference associated with the given name
from all scopes. Does nothing if there is no such object.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - The name of the object to remove.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - if the name is null</dd>
</dl>
</li>
</ul>
<a name="removeAttribute-java.lang.String-int-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>removeAttribute</h4>
<pre>public abstract void removeAttribute(java.lang.String name,
int scope)</pre>
<div class="block">Remove the object reference associated with the specified name
in the given scope. Does nothing if there is no such object.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - The name of the object to remove.</dd>
<dd><code>scope</code> - The scope where to look.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if the scope is invalid</dd>
<dd><code>java.lang.IllegalStateException</code> - if the scope is
PageContext.SESSION_SCOPE but the page that was requested
does not participate in a session or the session has been
invalidated.</dd>
<dd><code>java.lang.NullPointerException</code> - if the name is null</dd>
</dl>
</li>
</ul>
<a name="getAttributesScope-java.lang.String-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getAttributesScope</h4>
<pre>public abstract int getAttributesScope(java.lang.String name)</pre>
<div class="block">Get the scope where a given attribute is defined.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - the name of the attribute to return the scope for</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the scope of the object associated with the name specified or 0</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - if the name is null</dd>
</dl>
</li>
</ul>
<a name="getAttributeNamesInScope-int-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getAttributeNamesInScope</h4>
<pre>public abstract java.util.Enumeration<java.lang.String> getAttributeNamesInScope(int scope)</pre>
<div class="block">Enumerate all the attributes in a given scope.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>scope</code> - the scope to enumerate all the attributes for</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an enumeration of names (java.lang.String) of all the
attributes the specified scope</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if the scope is invalid</dd>
<dd><code>java.lang.IllegalStateException</code> - if the scope is
PageContext.SESSION_SCOPE but the page that was requested
does not participate in a session or the session has been
invalidated.</dd>
</dl>
</li>
</ul>
<a name="getOut--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getOut</h4>
<pre>public abstract <a href="../../../javax/servlet/jsp/JspWriter.html" title="class in javax.servlet.jsp">JspWriter</a> getOut()</pre>
<div class="block">The current value of the out object (a JspWriter).</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the current JspWriter stream being used for client response</dd>
</dl>
</li>
</ul>
<a name="getExpressionEvaluator--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getExpressionEvaluator</h4>
<pre>public abstract <a href="../../../javax/servlet/jsp/el/ExpressionEvaluator.html" title="class in javax.servlet.jsp.el">ExpressionEvaluator</a> getExpressionEvaluator()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> <span class="deprecationComment">As of JSP 2.1, replaced by
JspApplicationContext.getExpressionFactory()</span></div>
<div class="block">Provides programmatic access to the ExpressionEvaluator.
The JSP Container must return a valid instance of an
ExpressionEvaluator that can parse EL expressions.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A valid instance of an ExpressionEvaluator.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.0</dd>
</dl>
</li>
</ul>
<a name="getELContext--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getELContext</h4>
<pre>public abstract <a href="../../../javax/el/ELContext.html" title="class in javax.el">ELContext</a> getELContext()</pre>
</li>
</ul>
<a name="getVariableResolver--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getVariableResolver</h4>
<pre>public abstract <a href="../../../javax/servlet/jsp/el/VariableResolver.html" title="interface in javax.servlet.jsp.el">VariableResolver</a> getVariableResolver()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> <span class="deprecationComment">As of JSP 2.1,
replaced by javax.el.ELContext.getELResolver()
which can be obtained by
jspContext.getELContext().getELResolver()</span></div>
<div class="block">Returns an instance of a VariableResolver that provides access to the
implicit objects specified in the JSP specification using this JspContext
as the context object.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A valid instance of a VariableResolver.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.0</dd>
</dl>
</li>
</ul>
<a name="pushBody-java.io.Writer-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>pushBody</h4>
<pre>public <a href="../../../javax/servlet/jsp/JspWriter.html" title="class in javax.servlet.jsp">JspWriter</a> pushBody(java.io.Writer writer)</pre>
<div class="block">Return a new JspWriter object that sends output to the
provided Writer. Saves the current "out" JspWriter,
and updates the value of the "out" attribute in the
page scope attribute namespace of the JspContext.
<p>The returned JspWriter must implement all methods and
behave as though it were unbuffered. More specifically:
</p>
<ul>
<li>clear() must throw an IOException</li>
<li>clearBuffer() does nothing</li>
<li>getBufferSize() always returns 0</li>
<li>getRemaining() always returns 0</li>
</ul></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>writer</code> - The Writer for the returned JspWriter to send
output to.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a new JspWriter that writes to the given Writer.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.0</dd>
</dl>
</li>
</ul>
<a name="popBody--">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>popBody</h4>
<pre>public <a href="../../../javax/servlet/jsp/JspWriter.html" title="class in javax.servlet.jsp">JspWriter</a> popBody()</pre>
<div class="block">Return the previous JspWriter "out" saved by the matching
pushBody(), and update the value of the "out" attribute in
the page scope attribute namespace of the JspContext.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the saved JspWriter.</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>
<div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div>
<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="../../../javax/servlet/jsp/JspApplicationContext.html" title="interface in javax.servlet.jsp"><span class="typeNameLink">Prev Class</span></a></li>
<li><a href="../../../javax/servlet/jsp/JspEngineInfo.html" title="class in javax.servlet.jsp"><span class="typeNameLink">Next Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../index.html?javax/servlet/jsp/JspContext.html" target="_top">Frames</a></li>
<li><a href="JspContext.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 ======= -->
<p class="legalCopy"><small>Copyright © 2000-2015 The Apache Software Foundation. All Rights Reserved.</small></p>
</body>
</html>
|