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java.lang.Objectorg.apache.xalan.extensions.ExtensionHandler
org.apache.xalan.extensions.ExtensionHandlerGeneral
public class ExtensionHandlerGeneral
Class handling an extension namespace for XPath. Provides functions to test a function's existence and call a function
Constructor Summary | |
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ExtensionHandlerGeneral(java.lang.String namespaceUri,
StringVector elemNames,
StringVector funcNames,
java.lang.String scriptLang,
java.lang.String scriptSrcURL,
java.lang.String scriptSrc,
java.lang.String systemId)
Construct a new extension namespace handler given all the information needed. |
Method Summary | |
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java.lang.Object |
callFunction(FuncExtFunction extFunction,
java.util.Vector args,
ExpressionContext exprContext)
Process a call to an XPath extension function |
java.lang.Object |
callFunction(java.lang.String funcName,
java.util.Vector args,
java.lang.Object methodKey,
ExpressionContext exprContext)
Process a call to a function. |
boolean |
isElementAvailable(java.lang.String element)
Tests whether a certain element name is known within this namespace. |
boolean |
isFunctionAvailable(java.lang.String function)
Tests whether a certain function name is known within this namespace. |
void |
processElement(java.lang.String localPart,
ElemTemplateElement element,
TransformerImpl transformer,
Stylesheet stylesheetTree,
java.lang.Object methodKey)
Process a call to this extension namespace via an element. |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ExtensionHandlerGeneral(java.lang.String namespaceUri, StringVector elemNames, StringVector funcNames, java.lang.String scriptLang, java.lang.String scriptSrcURL, java.lang.String scriptSrc, java.lang.String systemId) throws javax.xml.transform.TransformerException
namespaceUri
- the extension namespace URI that I'm implementingelemNames
- Vector of element namesfuncNames
- string containing list of functions of extension NSscriptLang
- Scripting language of implementationscriptSrcURL
- URL of source scriptscriptSrc
- the actual script code (if any)systemId
-
javax.xml.transform.TransformerException
Method Detail |
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public boolean isFunctionAvailable(java.lang.String function)
isFunctionAvailable
in class ExtensionHandler
function
- name of the function being tested
public boolean isElementAvailable(java.lang.String element)
isElementAvailable
in class ExtensionHandler
element
- name of the element being tested
public java.lang.Object callFunction(java.lang.String funcName, java.util.Vector args, java.lang.Object methodKey, ExpressionContext exprContext) throws javax.xml.transform.TransformerException
callFunction
in class ExtensionHandler
funcName
- Function name.args
- The arguments of the function call.methodKey
- A key that uniquely identifies this class and method call.exprContext
- The context in which this expression is being executed.
javax.xml.transform.TransformerException
- if parsing troublepublic java.lang.Object callFunction(FuncExtFunction extFunction, java.util.Vector args, ExpressionContext exprContext) throws javax.xml.transform.TransformerException
callFunction
in class ExtensionHandler
extFunction
- The XPath extension functionargs
- The arguments of the function call.exprContext
- The context in which this expression is being executed.
javax.xml.transform.TransformerException
public void processElement(java.lang.String localPart, ElemTemplateElement element, TransformerImpl transformer, Stylesheet stylesheetTree, java.lang.Object methodKey) throws javax.xml.transform.TransformerException, java.io.IOException
processElement
in class ExtensionHandler
localPart
- Element name's local part.element
- The extension element being processed.transformer
- Handle to TransformerImpl.stylesheetTree
- The compiled stylesheet tree.methodKey
- A key that uniquely identifies this class and method call.
XSLProcessorException
- thrown if something goes wrong
while running the extension handler.
MalformedURLException
- if loading trouble
FileNotFoundException
- if loading trouble
java.io.IOException
- if loading trouble
javax.xml.transform.TransformerException
- if parsing trouble
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