org.apache.bsf.engines.xslt
Class XSLTEngine

java.lang.Object
  org.apache.bsf.util.BSFEngineImpl
      org.apache.bsf.engines.xslt.XSLTEngine

All Implemented Interfaces:

BSFEngine, java.util.EventListener, java.beans.PropertyChangeListener

public class XSLTEngine

extends BSFEngineImpl

Xerces XSLT interface to BSF. Requires Xalan and Xerces from Apache. This integration uses the BSF registry to pass in any src document and stylesheet base URI that the user may wish to set.

Author:

Sanjiva Weerawarana, Sam Ruby Re-implemented for the Xalan 2 codebase, Victor J. Orlikowski, Rony G. Flatscher (added BSF_Log[Factory] to allow BSF to run without org.apache.commons.logging present)

Field Summary

(package private) BSF_Log	logger
(package private) javax.xml.transform.TransformerFactory	tFactory
(package private) javax.xml.transform.Transformer	transformer

Fields inherited from class org.apache.bsf.util.BSFEngineImpl

classLoader, classPath, declaredBeans, lang, mgr, tempDir

Constructor Summary

XSLTEngine()

Method Summary

java.lang.Object	call(java.lang.Object object, java.lang.String method, java.lang.Object[] args) call the named method of the given object.
void	declareBean(BSFDeclaredBean bean) Declare a bean by setting it as a parameter
java.lang.Object	eval(java.lang.String source, int lineNo, int columnNo, java.lang.Object oscript) Evaluate an expression.
void	initialize(BSFManager mgr, java.lang.String lang, java.util.Vector declaredBeans) Initialize the engine.
void	undeclareBean(BSFDeclaredBean bean) Undeclare a bean by setting he parameter represeting it to null

Methods inherited from class org.apache.bsf.util.BSFEngineImpl

apply, compileApply, compileExpr, compileScript, exec, iexec, propertyChange, terminate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

tFactory

javax.xml.transform.TransformerFactory tFactory

transformer

javax.xml.transform.Transformer transformer

logger

BSF_Log logger

Constructor Detail

XSLTEngine

public XSLTEngine()

Method Detail

call

public java.lang.Object call(java.lang.Object object,
                             java.lang.String method,
                             java.lang.Object[] args)
                      throws BSFException

call the named method of the given object.

Parameters:

object - object on which to make the call

method - name of the method / procedure to call

args - the arguments to be given to the procedure

Throws:

BSFException - if anything goes wrong while eval'ing a BSFException is thrown. The reason indicates the problem.

declareBean

public void declareBean(BSFDeclaredBean bean)
                 throws BSFException

Declare a bean by setting it as a parameter

Specified by:

declareBean in interface BSFEngine

Overrides:

declareBean in class BSFEngineImpl

Throws:

BSFException

eval

public java.lang.Object eval(java.lang.String source,
                             int lineNo,
                             int columnNo,
                             java.lang.Object oscript)
                      throws BSFException

Evaluate an expression. In this case, an expression is assumed to be a stylesheet of the template style (see the XSLT spec).

Parameters:

source - (context info) the source of this expression (e.g., filename)

lineNo - (context info) the line number in source for expr

columnNo - (context info) the column number in source for expr

oscript - the expression to evaluate

Throws:

BSFException - if anything goes wrong while eval'ing a BSFException is thrown. The reason indicates the problem.

initialize

public void initialize(BSFManager mgr,
                       java.lang.String lang,
                       java.util.Vector declaredBeans)
                throws BSFException

Initialize the engine.

Specified by:

initialize in interface BSFEngine

Overrides:

initialize in class BSFEngineImpl

Throws:

BSFException

undeclareBean

public void undeclareBean(BSFDeclaredBean bean)
                   throws BSFException

Undeclare a bean by setting he parameter represeting it to null

Specified by:

undeclareBean in interface BSFEngine

Overrides:

undeclareBean in class BSFEngineImpl

Throws:

BSFException