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| <div class="subTitle">jakarta.servlet.jsp.tagext</div> |
| <h2 title="Class TagData" class="title">Class TagData</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
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| <ul class="inheritance"> |
| <li>jakarta.servlet.jsp.tagext.TagData</li> |
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| <dd>java.lang.Cloneable</dd> |
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| <pre>public class <span class="typeNameLabel">TagData</span> |
| extends java.lang.Object |
| implements java.lang.Cloneable</pre> |
| <div class="block">The (translation-time only) attribute/value information for a tag instance. |
| |
| <p> |
| TagData is only used as an argument to the isValid, validate, and getVariableInfo methods of TagExtraInfo, which are |
| invoked at translation time.</div> |
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| <td class="colFirst"><code>static java.lang.Object</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/servlet/jsp/tagext/TagData.html#REQUEST_TIME_VALUE">REQUEST_TIME_VALUE</a></span></code> |
| <div class="block">Distinguished value for an attribute to indicate its value is a request-time expression (which is not yet |
| available because TagData instances are used at translation-time).</div> |
| </td> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../jakarta/servlet/jsp/tagext/TagData.html#TagData-java.util.Hashtable-">TagData</a></span>(java.util.Hashtable<java.lang.String,java.lang.Object> attrs)</code> |
| <div class="block">Constructor for a TagData.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../jakarta/servlet/jsp/tagext/TagData.html#TagData-java.lang.Object:A:A-">TagData</a></span>(java.lang.Object[][] atts)</code> |
| <div class="block">Constructor for TagData.</div> |
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| <tr> |
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| <th class="colLast" scope="col">Method and Description</th> |
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| <td class="colFirst"><code>java.lang.Object</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/servlet/jsp/tagext/TagData.html#getAttribute-java.lang.String-">getAttribute</a></span>(java.lang.String attName)</code> |
| <div class="block">The value of the attribute.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>java.util.Enumeration<java.lang.String></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/servlet/jsp/tagext/TagData.html#getAttributes--">getAttributes</a></span>()</code> |
| <div class="block">Enumerates the attributes.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/servlet/jsp/tagext/TagData.html#getAttributeString-java.lang.String-">getAttributeString</a></span>(java.lang.String attName)</code> |
| <div class="block">Get the value for a given attribute.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/servlet/jsp/tagext/TagData.html#getId--">getId</a></span>()</code> |
| <div class="block">The value of the tag's id attribute.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../jakarta/servlet/jsp/tagext/TagData.html#setAttribute-java.lang.String-java.lang.Object-">setAttribute</a></span>(java.lang.String attName, |
| java.lang.Object value)</code> |
| <div class="block">Set the value of an attribute.</div> |
| </td> |
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| <!-- --> |
| </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> |
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| <h4>REQUEST_TIME_VALUE</h4> |
| <pre>public static final java.lang.Object REQUEST_TIME_VALUE</pre> |
| <div class="block">Distinguished value for an attribute to indicate its value is a request-time expression (which is not yet |
| available because TagData instances are used at translation-time).</div> |
| </li> |
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| <h4>TagData</h4> |
| <pre>public TagData(java.lang.Object[][] atts)</pre> |
| <div class="block">Constructor for TagData. |
| |
| <p> |
| A typical constructor may be |
| |
| <pre> |
| static final Object[][] att = { { "connection", "conn0" }, { "id", "query0" } }; |
| static final TagData td = new TagData(att); |
| </pre> |
| |
| All values must be Strings except for those holding the distinguished object REQUEST_TIME_VALUE.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>atts</code> - the static attribute and values. May be null.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="TagData-java.util.Hashtable-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>TagData</h4> |
| <pre>public TagData(java.util.Hashtable<java.lang.String,java.lang.Object> attrs)</pre> |
| <div class="block">Constructor for a TagData. |
| |
| If you already have the attributes in a hashtable, use this constructor.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>attrs</code> - A hashtable to get the values from.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>getId</h4> |
| <pre>public java.lang.String getId()</pre> |
| <div class="block">The value of the tag's id attribute.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the value of the tag's id attribute, or null if no such attribute was specified.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>getAttribute</h4> |
| <pre>public java.lang.Object getAttribute(java.lang.String attName)</pre> |
| <div class="block">The value of the attribute. If a static value is specified for an attribute that accepts a request-time attribute |
| expression then that static value is returned, even if the value is provided in the body of a |
| <jsp:attribute> action. The distinguished object REQUEST_TIME_VALUE is only returned if the value is |
| specified as a request-time attribute expression or via the <jsp:attribute> action with a body that |
| contains dynamic content (scriptlets, scripting expressions, EL expressions, standard actions, or custom |
| actions). Returns null if the attribute is not set.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>attName</code> - the name of the attribute</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the attribute's value</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>setAttribute</h4> |
| <pre>public void setAttribute(java.lang.String attName, |
| java.lang.Object value)</pre> |
| <div class="block">Set the value of an attribute.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>attName</code> - the name of the attribute</dd> |
| <dd><code>value</code> - the value.</dd> |
| </dl> |
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| </ul> |
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| <h4>getAttributeString</h4> |
| <pre>public java.lang.String getAttributeString(java.lang.String attName)</pre> |
| <div class="block">Get the value for a given attribute.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>attName</code> - the name of the attribute</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the attribute value string</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.ClassCastException</code> - if attribute value is not a String</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getAttributes--"> |
| <!-- --> |
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| <h4>getAttributes</h4> |
| <pre>public java.util.Enumeration<java.lang.String> getAttributes()</pre> |
| <div class="block">Enumerates the attributes.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>An enumeration of the attributes in a TagData</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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