org.apache.xalan.templates

Class AVTPart

public abstract class AVTPart extends Object implements Serializable, XSLTVisitable

Class to hold a part, either a string or XPath, of an Attribute Value Template.

UNKNOWN: internal

Constructor Summary
AVTPart()
Construct a part.
Method Summary
booleancanTraverseOutsideSubtree()
Tell if this expression or it's subexpressions can traverse outside the current subtree.
abstract voidevaluate(XPathContext xctxt, FastStringBuffer buf, int context, PrefixResolver nsNode)
Write the evaluated value into the given string buffer.
abstract voidfixupVariables(Vector vars, int globalsSize)
This function is used to fixup variables from QNames to stack frame indexes at stylesheet build time.
abstract StringgetSimpleString()
Get the AVT part as the original string.
voidsetXPathSupport(XPathContext support)
Set the XPath support.

Constructor Detail

AVTPart

public AVTPart()
Construct a part.

Method Detail

canTraverseOutsideSubtree

public boolean canTraverseOutsideSubtree()
Tell if this expression or it's subexpressions can traverse outside the current subtree.

Returns: true if traversal outside the context node's subtree can occur.

evaluate

public abstract void evaluate(XPathContext xctxt, FastStringBuffer buf, int context, PrefixResolver nsNode)
Write the evaluated value into the given string buffer.

Parameters: xctxt The XPath context to use to evaluate this AVT. buf Buffer to write into. context The current source tree context. nsNode The current namespace context (stylesheet tree context).

Throws: javax.xml.transform.TransformerException

fixupVariables

public abstract void fixupVariables(Vector vars, int globalsSize)
This function is used to fixup variables from QNames to stack frame indexes at stylesheet build time.

Parameters: vars List of QNames that correspond to variables. This list should be searched backwards for the first qualified name that corresponds to the variable reference qname. The position of the QName in the vector from the start of the vector will be its position in the stack frame (but variables above the globalsTop value will need to be offset to the current stack frame).

getSimpleString

public abstract String getSimpleString()
Get the AVT part as the original string.

Returns: the AVT part as the original string.

setXPathSupport

public void setXPathSupport(XPathContext support)
Set the XPath support.

Parameters: support XPathContext to set.

Copyright © 2005 Apache XML Project. All Rights Reserved.