Package org.apache.bsf.engines.xslt

Class XSLTEngine

java.lang.Object

org.apache.bsf.util.BSFEngineImpl

org.apache.bsf.engines.xslt.XSLTEngine

All Implemented Interfaces:

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

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

Field Summary

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

classLoader, classPath, declaredBeans, lang, mgr, tempDir

Constructor Summary

Constructors

Constructor	Description
XSLTEngine()

Method Summary

Modifier and Type	Method	Description
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

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

Parameters:

bean - the bean to declare

Throws:

BSFException - if the engine cannot do this operation

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

Parameters:

mgr - The BSFManager that's hosting this engine.

lang - Language string which this engine is handling.

declaredBeans - Vector of BSFDeclaredObject containing beans that should be declared into the language runtime at init time as best as possible.

Throws:

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

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

Parameters:

bean - the bean to undeclare

Throws:

BSFException - if the engine cannot do this operation