FuncPosition (Lobo Evolution 5.0 API)

java.lang.Object

org.loboevolution.apache.xpath.Expression

org.loboevolution.apache.xpath.functions.Function

org.loboevolution.apache.xpath.functions.FuncPosition

All Implemented Interfaces:: SourceLocator, ExpressionNode, XPathVisitable

public class FuncPosition extends Function

Execute the Position() function.

Constructor Summary

Constructors

Constructor

Description

FuncPosition()
Method Summary

Modifier and Type

Method

Description

XObject

execute(XPathContext xctxt)

Execute an expression in the XPath runtime context, and return the result of the expression.

int

getPositionInContextNodeList(XPathContext xctxt)

Get the position in the current context node list.

void

postCompileStep(Compiler compiler)

This function is currently only being used by Position() and Last().

Methods inherited from class org.loboevolution.apache.xpath.functions.Function
callArgVisitors, callVisitors, checkNumberArgs, deepEquals, reportWrongNumberArgs, setArg

Methods inherited from class org.loboevolution.apache.xpath.Expression
asIterator, asNode, assertion, bool, canTraverseOutsideSubtree, error, execute, execute, execute, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isSameClass, isStableNumber, num

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- FuncPosition
  
  public FuncPosition()
Method Details
- postCompileStep
  
  public void postCompileStep(Compiler compiler)
  
  This function is currently only being used by Position() and Last(). See respective functions for more detail.
  
  Overrides:
  
  postCompileStep in class Function
- getPositionInContextNodeList
  
  public int getPositionInContextNodeList(XPathContext xctxt)
  
  Get the position in the current context node list.
  
  Parameters:
  
  xctxt - Runtime XPath context.
  
  Returns:
  
  The current position of the iteration in the context node list, or -1 if there is no active context node list.
- execute
  
  public XObject execute(XPathContext xctxt) throws TransformerException
  
  Execute an expression in the XPath runtime context, and return the result of the expression.
  
  Overrides:
  
  execute in class Function
  
  Parameters:
  
  xctxt - The XPath runtime context.
  
  Returns:
  
  The result of the expression in the form of a XObject.
  
  Throws:
  
  TransformerException - if a runtime exception occurs.