Class PrecedingOrFollowingContext

java.lang.Object
org.apache.commons.jxpath.ri.EvalContext
org.apache.commons.jxpath.ri.axes.PrecedingOrFollowingContext
All Implemented Interfaces:
Iterator, ExpressionContext

public class PrecedingOrFollowingContext extends EvalContext
EvalContext that walks the "preceding::" and "following::" axes.
Version:
$Revision: 670727 $ $Date: 2008-06-23 15:10:38 -0500 (Mon, 23 Jun 2008) $
  • Field Details

    • nodeTest

      private NodeTest nodeTest
    • setStarted

      private boolean setStarted
    • stack

      private Stack stack
    • currentNodePointer

      private NodePointer currentNodePointer
    • currentRootLocation

      private NodePointer currentRootLocation
    • reverse

      private boolean reverse
  • Constructor Details

    • PrecedingOrFollowingContext

      public PrecedingOrFollowingContext(EvalContext parentContext, NodeTest nodeTest, boolean reverse)
      Create a new PrecedingOrFollowingContext.
      Parameters:
      parentContext - parent context
      nodeTest - test
      reverse - whether to iterate in reverse order
  • Method Details

    • getCurrentNodePointer

      public NodePointer getCurrentNodePointer()
      Description copied from class: EvalContext
      Returns the current context node. Undefined before the beginning of the iteration.
      Specified by:
      getCurrentNodePointer in class EvalContext
      Returns:
      NodePoiner
    • getDocumentOrder

      public int getDocumentOrder()
      Description copied from class: EvalContext
      Determines the document order for this context.
      Overrides:
      getDocumentOrder in class EvalContext
      Returns:
      1 ascending order, -1 descending order, 0 - does not require ordering
    • reset

      public void reset()
      Description copied from class: EvalContext
      Sets current position = 0, which is the pre-iteration state.
      Overrides:
      reset in class EvalContext
    • setPosition

      public boolean setPosition(int position)
      Description copied from class: EvalContext
      Moves the current position to the specified index. Used with integer predicates to quickly get to the n'th element of the node set. Returns false if the position is out of the node set range. You can call it with 0 as the position argument to restart the iteration.
      Overrides:
      setPosition in class EvalContext
      Parameters:
      position - to set
      Returns:
      boolean
    • nextNode

      public boolean nextNode()
      Description copied from class: EvalContext
      Returns true if there is another object in the current set. Switches the current position and node to the next object.
      Specified by:
      nextNode in class EvalContext
      Returns:
      boolean