org.apache.xpath.functions
Class Function3Args
- ExpressionNode, ExpressionOwner, java.io.Serializable, SourceLocator, XPathVisitable
public class Function3Args
Base class for functions that accept three arguments.
asIterator , asIteratorRaw , asNode , assertion , bool , canTraverseOutsideSubtree , deepEquals , error , execute , execute , execute , execute , executeCharsToContentHandler , exprAddChild , exprGetChild , exprGetNumChildren , exprGetParent , exprSetParent , fixupVariables , getColumnNumber , getExpressionOwner , getLineNumber , getPublicId , getSystemId , isNodesetExpr , isStableNumber , num , warn , xstr |
canTraverseOutsideSubtree
public boolean canTraverseOutsideSubtree()
Tell if this expression or it's subexpressions can traverse outside
the current subtree.
- canTraverseOutsideSubtree in interface Function2Args
- true if traversal outside the context node's subtree can occur.
checkNumberArgs
public void checkNumberArgs(int argNum)
throws WrongNumberArgsException
Check that the number of arguments passed to this function is correct.
- checkNumberArgs in interface Function2Args
argNum
- The number of arguments that is being passed to the function.
fixupVariables
public void fixupVariables(java.util.Vector vars,
int globalsSize)
This function is used to fixup variables from QNames to stack frame
indexes at stylesheet build time.
- fixupVariables in interface Function2Args
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).
getArg2
public Expression getArg2()
Return the third argument passed to the function (at index 2).
- An expression that represents the third argument passed to the
function.
setArg
public void setArg(Expression arg,
int argNum)
throws WrongNumberArgsException
Set an argument expression for a function. This method is called by the
XPath compiler.
- setArg in interface Function2Args
arg
- non-null expression that represents the argument.argNum
- The argument number index.
Copyright B) 2004 Apache XML Project. All Rights Reserved.