org.apache.xalan.templates
Class VarNameCollector
java.lang.Object
org.apache.xpath.XPathVisitor
org.apache.xalan.templates.VarNameCollector
- public class VarNameCollector
- extends XPathVisitor
This class visits variable refs in an XPath and collects their QNames.
Methods inherited from class org.apache.xpath.XPathVisitor |
visitBinaryOperation, visitFunction, visitLocationPath, visitMatchPattern, visitNumberLiteral, visitPredicate, visitStep, visitStringLiteral, visitUnaryOperation, visitUnionPath, visitUnionPattern |
VarNameCollector
public VarNameCollector()
reset
public void reset()
- Reset the list for a fresh visitation and collection.
getVarCount
public int getVarCount()
- Get the number of variable references that were collected.
- Returns:
- the size of the list.
visitVariableRef
public boolean visitVariableRef(ExpressionOwner owner,
Variable var)
- Visit a variable reference.
- Overrides:
visitVariableRef
in class XPathVisitor
- Parameters:
owner
- The owner of the expression, to which the expression can
be reset if rewriting takes place.var
- The variable reference object.
- Returns:
- true if the sub expressions should be traversed.
Copyright ? 2004 Apache XML Project. All Rights Reserved.