org.apache.xalan.templates
Class AVTPart

java.lang.Object
  |
  +--org.apache.xalan.templates.AVTPart

Direct Known Subclasses:

AVTPartSimple, AVTPartXPath

public abstract class AVTPart

extends java.lang.Object

implements java.io.Serializable

**For internal use only** Class to hold a part, either a string or XPath, of an Attribute Value Template.

See Also:

Serialized Form

Constructor Summary

AVTPart()
Construct a part.

Method Summary

boolean	canTraverseOutsideSubtree() Tell if this expression or it's subexpressions can traverse outside the current subtree.
abstract void	evaluate(XPathContext xctxt, FastStringBuffer buf, Node context, PrefixResolver nsNode) Write the evaluated value into the given string buffer.
abstract java.lang.String	getSimpleString() Get the AVT part as the original string.
void	setXPathSupport(XPathContext support) Set the XPath support.

Methods inherited from class java.lang.Object

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

Constructor Detail

AVTPart

public AVTPart()

Construct a part.

Method Detail

getSimpleString

public abstract java.lang.String getSimpleString()

Get the AVT part as the original string.

Returns:

the AVT part as the original string.

evaluate

public abstract void evaluate(XPathContext xctxt,
                              FastStringBuffer buf,
                              Node context,
                              PrefixResolver nsNode)
                       throws TransformerException

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).

NodeList - The current Context Node List.

Throws:

TransformerException -

setXPathSupport

public void setXPathSupport(XPathContext support)

Set the XPath support.

Parameters:

support - XPathContext to set.

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.