com.novell.xsl.extensions
Class AssignVariableTemplate

java.lang.Object
  com.novell.xsl.process.TemplateCollection
      com.novell.xsl.process.VariableTemplate
          com.novell.xsl.extensions.AssignVariableTemplate

All Implemented Interfaces:

Expression, Template

public class AssignVariableTemplate
extends VariableTemplate

A extension element template that allows assignment to an xsl:variable-defined variable. This represents the nxsl:assign-variable element

Field Summary

protected Expression

variable The variable object that this template is to modify.

Fields inherited from class com.novell.xsl.process.VariableTemplate

currentValue

Constructor Summary

protected

AssignVariableTemplate(ExpandedQName name, Expression select, Template[] templates, Expression variable, Node nsContext) Constructs an AssignVariableTemplate that create assigns a new value to an already-defined variable

Method Summary

void	dump(PrintWriter out, int indent) Dumps this object to the specified output stream.
void	instantiate(ProcessingEnv env, Node currentNode, ResultHandler result) Instantiates this template for the specified current node and sends the result to the specified result handler.
static Template	parse(StylesheetParser stylesheetParser, Element element) Parse an nxsl:assign-variable element (an extension element)

Methods inherited from class com.novell.xsl.process.VariableTemplate

evaluate, getCurrentValue, getName, getResultType, getSelect, isConstant, isParam, registerForReset, setCurrentValue

Methods inherited from class com.novell.xsl.process.TemplateCollection

getNamespaceContext, getTemplates, instantiateTemplates

Methods inherited from class java.lang.Object

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

Field Detail

variable

protected Expression variable

The variable object that this template is to modify. Must be either a VariableTemplate object or a VariablePlaceholder object

Constructor Detail

AssignVariableTemplate

protected AssignVariableTemplate(ExpandedQName name,
                                 Expression select,
                                 Template[] templates,
                                 Expression variable,
                                 Node nsContext)

Constructs an AssignVariableTemplate that create assigns a new value to an already-defined variable

Parameters:

name - the name of the variable (an expanded name)

select - the optional expression that is evaluated to give the the value of the variable

templates - the templates to be evaluated to get the variable's value if no select expression is given

variable - the Expression-implementing object whose value this template will modify (must be either a VariableTemplate or a VariablePlaceholder object)

nsContext - The node in the style sheet from which this template comes

Method Detail

parse

public static Template parse(StylesheetParser stylesheetParser,
                             Element element)
                      throws XSLTParserException

Parse an nxsl:assign-variable element (an extension element)

Parameters:

stylesheetParser - The StylesheetParser for which the element is to be parsed.

element - The element node in the stylesheet.

Returns:

An AssignVariableTemplate object representing the nxsl:assign-variable template

Throws:

XSLTParserException

instantiate

public void instantiate(ProcessingEnv env,
                        Node currentNode,
                        ResultHandler result)
                 throws XSLException

Instantiates this template for the specified current node and sends the result to the specified result handler.

For a VariableTemplate, this method evaluates the select expression, or instantiates the result fragment template, and places the variable within scope.

Specified by:

instantiate in interface Template

Overrides:

instantiate in class VariableTemplate

Parameters:

env - the current processing environment

currentNode - the current source node

result - the handler to which results are sent

Throws:

XSLException - if a fatal error occurs during instantiation

dump

public void dump(PrintWriter out,
                 int indent)

Dumps this object to the specified output stream.

Specified by:

dump in interface Expression

Specified by:

dump in interface Template

Overrides:

dump in class VariableTemplate

Parameters:

out - the output stream to write to

indent - number of tabs to indent