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| Xalan-Java 2.7.1: Class ExtensionHandler
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| org.apache.xalan.extensions</FONT>
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| Class ExtensionHandler</H2>
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| <PRE>
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| java.lang.Object
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| |
|
| +--<B>org.apache.xalan.extensions.ExtensionHandler</B>
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| </PRE>
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| <DL>
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| <DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../org/apache/xalan/extensions/ExtensionHandlerExsltFunction.html">ExtensionHandlerExsltFunction</A>, <A HREF="../../../../org/apache/xalan/extensions/ExtensionHandlerGeneral.html">ExtensionHandlerGeneral</A>, <A HREF="../../../../org/apache/xalan/extensions/ExtensionHandlerJava.html">ExtensionHandlerJava</A></DD>
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| <DL>
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| <DT>public abstract class <B>ExtensionHandler</B><DT>extends java.lang.Object</DL>
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| <P>
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| Abstract base class for handling an extension namespace for XPath. |
| Provides functions to test a function's existence and call a function. |
| Also provides functions for calling an element and testing for |
| an element's existence.
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| <P>
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| <DL>
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| <DT><B>Usage:</B><DD><i><font size="-1" color="#FF0000"> **For internal use only**</font></i></DD> |
| </DD>
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| <B>Method Summary</B></FONT></TD>
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| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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| <CODE>abstract java.lang.Object</CODE></FONT></TD>
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| <TD><CODE><B><A HREF="../../../../org/apache/xalan/extensions/ExtensionHandler.html#callFunction(org.apache.xpath.functions.FuncExtFunction, java.util.Vector, org.apache.xalan.extensions.ExpressionContext)">callFunction</A></B>(<A HREF="../../../../org/apache/xpath/functions/FuncExtFunction.html">FuncExtFunction</A> extFunction, |
| java.util.Vector args, |
| <A HREF="../../../../org/apache/xalan/extensions/ExpressionContext.html">ExpressionContext</A> exprContext)</CODE>
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|
|
| <BR>
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| Process a call to a function.</TD>
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| </TR>
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| <TR BGCOLOR="white" CLASS="TableRowColor">
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| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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| <CODE>abstract java.lang.Object</CODE></FONT></TD>
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| <TD><CODE><B><A HREF="../../../../org/apache/xalan/extensions/ExtensionHandler.html#callFunction(java.lang.String, java.util.Vector, java.lang.Object, org.apache.xalan.extensions.ExpressionContext)">callFunction</A></B>(java.lang.String funcName, |
| java.util.Vector args, |
| java.lang.Object methodKey, |
| <A HREF="../../../../org/apache/xalan/extensions/ExpressionContext.html">ExpressionContext</A> exprContext)</CODE>
|
|
|
| <BR>
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| Process a call to a function.</TD>
|
| </TR>
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| <TR BGCOLOR="white" CLASS="TableRowColor">
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| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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| <CODE>abstract boolean</CODE></FONT></TD>
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| <TD><CODE><B><A HREF="../../../../org/apache/xalan/extensions/ExtensionHandler.html#isElementAvailable(java.lang.String)">isElementAvailable</A></B>(java.lang.String element)</CODE>
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|
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| <BR>
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| Tests whether a certain element name is known within this namespace.</TD>
|
| </TR>
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| <TR BGCOLOR="white" CLASS="TableRowColor">
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| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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| <CODE>abstract boolean</CODE></FONT></TD>
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| <TD><CODE><B><A HREF="../../../../org/apache/xalan/extensions/ExtensionHandler.html#isFunctionAvailable(java.lang.String)">isFunctionAvailable</A></B>(java.lang.String function)</CODE>
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|
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| <BR>
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| Tests whether a certain function name is known within this namespace.</TD>
|
| </TR>
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| <TR BGCOLOR="white" CLASS="TableRowColor">
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| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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| <CODE>abstract void</CODE></FONT></TD>
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| <TD><CODE><B><A HREF="../../../../org/apache/xalan/extensions/ExtensionHandler.html#processElement(java.lang.String, org.apache.xalan.templates.ElemTemplateElement, org.apache.xalan.transformer.TransformerImpl, org.apache.xalan.templates.Stylesheet, java.lang.Object)">processElement</A></B>(java.lang.String localPart, |
| <A HREF="../../../../org/apache/xalan/templates/ElemTemplateElement.html">ElemTemplateElement</A> element, |
| <A HREF="../../../../org/apache/xalan/transformer/TransformerImpl.html">TransformerImpl</A> transformer, |
| <A HREF="../../../../org/apache/xalan/templates/Stylesheet.html">Stylesheet</A> stylesheetTree, |
| java.lang.Object methodKey)</CODE>
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|
|
| <BR>
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| Process a call to this extension namespace via an element.</TD>
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| </TR>
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| </TABLE>
|
| <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> |
| <TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
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| <TD><B>Methods inherited from class java.lang.Object</B></TD>
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| <TR BGCOLOR="white" CLASS="TableRowColor">
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| <TD><CODE>equals,
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| getClass,
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| hashCode,
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| notify,
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| notifyAll,
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| toString,
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| wait,
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| wait,
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| wait</CODE></TD>
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| </TR>
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| </TABLE>
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|
|
| <P>
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| <A NAME="isFunctionAvailable(java.lang.String)"><!-- --></A><H3>
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| isFunctionAvailable</H3>
|
| <PRE>
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| public abstract boolean <B>isFunctionAvailable</B>(java.lang.String function)</PRE>
|
| <DL>
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| <DD>Tests whether a certain function name is known within this namespace.<DD><DL>
|
| <DT><B>Parameters:</B><DD><CODE>function</CODE> - name of the function being tested<DT><B>Returns:</B><DD>true if its known, false if not.</DL>
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| </DD>
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| </DL>
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| <HR>
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|
|
| <A NAME="isElementAvailable(java.lang.String)"><!-- --></A><H3>
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| isElementAvailable</H3>
|
| <PRE>
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| public abstract boolean <B>isElementAvailable</B>(java.lang.String element)</PRE>
|
| <DL>
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| <DD>Tests whether a certain element name is known within this namespace.<DD><DL>
|
| <DT><B>Parameters:</B><DD><CODE>element</CODE> - Name of element to check<DT><B>Returns:</B><DD>true if its known, false if not.</DL>
|
| </DD>
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| </DL>
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| <HR>
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|
|
| <A NAME="callFunction(java.lang.String, java.util.Vector, java.lang.Object, org.apache.xalan.extensions.ExpressionContext)"><!-- --></A><H3>
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| callFunction</H3>
|
| <PRE>
|
| public abstract java.lang.Object <B>callFunction</B>(java.lang.String funcName, |
| java.util.Vector args, |
| java.lang.Object methodKey, |
| <A HREF="../../../../org/apache/xalan/extensions/ExpressionContext.html">ExpressionContext</A> exprContext) |
| throws <A HREF="../../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
|
| <DL>
|
| <DD>Process a call to a function.<DD><DL>
|
| <DT><B>Parameters:</B><DD><CODE>funcName</CODE> - Function name.<DD><CODE>args</CODE> - The arguments of the function call.<DD><CODE>methodKey</CODE> - A key that uniquely identifies this class and method call.<DD><CODE>exprContext</CODE> - The context in which this expression is being executed.<DT><B>Returns:</B><DD>the return value of the function evaluation.<DT><B>Throws:</B><DD><A HREF="../../../../javax/xml/transform/TransformerException.html">TransformerException</A> - if parsing trouble</DL>
|
| </DD>
|
| </DL>
|
| <HR>
|
|
|
| <A NAME="callFunction(org.apache.xpath.functions.FuncExtFunction, java.util.Vector, org.apache.xalan.extensions.ExpressionContext)"><!-- --></A><H3>
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| callFunction</H3>
|
| <PRE>
|
| public abstract java.lang.Object <B>callFunction</B>(<A HREF="../../../../org/apache/xpath/functions/FuncExtFunction.html">FuncExtFunction</A> extFunction, |
| java.util.Vector args, |
| <A HREF="../../../../org/apache/xalan/extensions/ExpressionContext.html">ExpressionContext</A> exprContext) |
| throws <A HREF="../../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
|
| <DL>
|
| <DD>Process a call to a function.<DD><DL>
|
| <DT><B>Parameters:</B><DD><CODE>extFunction</CODE> - The XPath extension function.<DD><CODE>args</CODE> - The arguments of the function call.<DD><CODE>exprContext</CODE> - The context in which this expression is being executed.<DT><B>Returns:</B><DD>the return value of the function evaluation.<DT><B>Throws:</B><DD><A HREF="../../../../javax/xml/transform/TransformerException.html">TransformerException</A> - if parsing trouble</DL>
|
| </DD>
|
| </DL>
|
| <HR>
|
|
|
| <A NAME="processElement(java.lang.String, org.apache.xalan.templates.ElemTemplateElement, org.apache.xalan.transformer.TransformerImpl, org.apache.xalan.templates.Stylesheet, java.lang.Object)"><!-- --></A><H3>
|
| processElement</H3>
|
| <PRE>
|
| public abstract void <B>processElement</B>(java.lang.String localPart, |
| <A HREF="../../../../org/apache/xalan/templates/ElemTemplateElement.html">ElemTemplateElement</A> element, |
| <A HREF="../../../../org/apache/xalan/transformer/TransformerImpl.html">TransformerImpl</A> transformer, |
| <A HREF="../../../../org/apache/xalan/templates/Stylesheet.html">Stylesheet</A> stylesheetTree, |
| java.lang.Object methodKey) |
| throws <A HREF="../../../../javax/xml/transform/TransformerException.html">TransformerException</A>, |
| java.io.IOException</PRE>
|
| <DL>
|
| <DD>Process a call to this extension namespace via an element. As a side |
| effect, the results are sent to the TransformerImpl's result tree.<DD><DL>
|
| <DT><B>Parameters:</B><DD><CODE>localPart</CODE> - Element name's local part.<DD><CODE>element</CODE> - The extension element being processed.<DD><CODE>transformer</CODE> - Handle to TransformerImpl.<DD><CODE>stylesheetTree</CODE> - The compiled stylesheet tree.<DD><CODE>methodKey</CODE> - A key that uniquely identifies this class and method call.<DT><B>Throws:</B><DD>XSLProcessorException - thrown if something goes wrong |
| while running the extension handler.<DD>MalformedURLException - if loading trouble<DD>FileNotFoundException - if loading trouble<DD>java.io.IOException - if loading trouble<DD><A HREF="../../../../javax/xml/transform/TransformerException.html">TransformerException</A> - if parsing trouble</DL>
|
| </DD>
|
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