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| <li>Summary: </li> |
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| <div class="subTitle">javax.servlet.jsp</div> |
| <h2 title="Class JspContext" class="title">Class JspContext</h2> |
| </div> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li>javax.servlet.jsp.JspContext</li> |
| </ul> |
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| <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>JSP 2.0</dd> |
| </dl> |
| </li> |
| </ul> |
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| <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> |
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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="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 ELContext</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/servlet/jsp/JspContext.html#getELContext--">getELContext</a></span>()</code> |
| <div class="block">Returns the <code>ELContext</code> associated with this <code>JspContext</code>.</div> |
| </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 <a href="../../../javax/servlet/jsp/JspApplicationContext.html#getExpressionFactory--"><code>JspApplicationContext.getExpressionFactory()</code></a></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 <code>ELContext#getELResolver</code>, which can be obtained by |
| <code>jspContext.getELContext().getELResolver()</code>.</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 ======== --> |
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| <!-- --> |
| </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> |
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| </a> |
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| <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> |
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| <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-"> |
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| </a> |
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| <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 <a href="../../../javax/servlet/jsp/JspApplicationContext.html#getExpressionFactory--"><code>JspApplicationContext.getExpressionFactory()</code></a></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>JSP 2.0</dd> |
| </dl> |
| </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 <code>ELContext#getELResolver</code>, which can be obtained by |
| <code>jspContext.getELContext().getELResolver()</code>.</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>JSP 2.0</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getELContext--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getELContext</h4> |
| <pre>public abstract ELContext getELContext()</pre> |
| <div class="block">Returns the <code>ELContext</code> associated with this <code>JspContext</code>. |
| |
| <p> |
| The <code>ELContext</code> is created lazily and is reused if it already exists. There is a new |
| <code>ELContext</code> for each <code>JspContext</code>. |
| </p> |
| |
| <p> |
| The <code>ELContext</code> must contain the <code>ELResolver</code> described in the JSP specification (and in |
| the javadocs for <a href="../../../javax/servlet/jsp/JspApplicationContext.html#addELResolver-ELResolver-"><code>JspApplicationContext.addELResolver(ELResolver)</code></a>). |
| </p></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The <code>ELContext</code> associated with this <code>JspContext</code>.</dd> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>JSP 2.1</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>JSP 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> |
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