jd.xml.xslt.extension
Class ScriptExtensionHandler

java.lang.Object
  jd.xml.xslt.extension.ExtensionHandler
      jd.xml.xslt.extension.ScriptExtensionHandler

public class ScriptExtensionHandler

extends ExtensionHandler

An ExtensionHandler that maps extension functions to functions of a scripting language like javascript or vbscript. It is defined by a script-element. For instance

      
      
      
          function helloWorld()
          {
              return "Hello World";
          }
      
      
 
 allows expressions to use the javascript functions:
 
      
 















Constructor Summary
ScriptExtensionHandler(String namespaceUri,
                       String language)



          Create a ScriptExtensionHandler
 



Method Summary




 void
addScript(String script)



          Add another script.



 Function
getFunction(XsltContext context,
            String functionName,
            Expression[] arguments)



          Return a extension function for the given name.



 String
getLanguage()



          Return the script language of this ExtensionHandler.



 boolean
isElementAvailable(String name)



          Return if an extension element is available.



 boolean
isFunctionAvailable(String name)



          Return if the associated java class has a method with the given name
 If true this does not guarantee that the method can be called successfully.


 
Methods inherited from class jd.xml.xslt.extension.ExtensionHandler
camelCaseName, implementsUri
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 








Constructor Detail



ScriptExtensionHandler
public ScriptExtensionHandler(String namespaceUri,
                              String language)

Create a ScriptExtensionHandler

Parameters:
namespaceUri - the namespace uri of this ExtensionHandler




Method Detail



getLanguage
public String getLanguage()

Return the script language of this ExtensionHandler.








addScript
public void addScript(String script)
               throws BSFException

Add another script.



Throws:
BSFException





isElementAvailable
public boolean isElementAvailable(String name)

Return if an extension element is available.


Specified by:
isElementAvailable in class ExtensionHandler








getFunction
public Function getFunction(XsltContext context,
                            String functionName,
                            Expression[] arguments)

Return a extension function for the given name.


Specified by:
getFunction in class ExtensionHandler


Parameters:
arguments - the arguments passed to the method
functionName - the function name





isFunctionAvailable
public boolean isFunctionAvailable(String name)

Return if the associated java class has a method with the given name
 If true this does not guarantee that the method can be called successfully.


Specified by:
isFunctionAvailable in class ExtensionHandler


Parameters:
name - the method name. If it equals "new" it is tested whether the
      class has a constructor.