Class InitialContext

  • All Implemented Interfaces:
    java.util.Iterator, ExpressionContext

    public class InitialContext
    extends EvalContext
    A single-set EvalContext that provides access to the current node of the parent context and nothing else. It does not pass the iteration on to the parent context.
    Version:
    $Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $
    Author:
    Dmitri Plotnikov
    • Field Detail

      • started

        private boolean started
      • collection

        private boolean collection
    • Constructor Detail

      • InitialContext

        public InitialContext​(EvalContext parentContext)
        Create a new InitialContext.
        Parameters:
        parentContext - parent context
    • Method Detail

      • getSingleNodePointer

        public Pointer getSingleNodePointer()
        Description copied from class: EvalContext
        Returns the first encountered Pointer that matches the current context's criteria.
        Overrides:
        getSingleNodePointer in class EvalContext
        Returns:
        Pointer
      • 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
      • getValue

        public java.lang.Object getValue()
        Description copied from class: EvalContext
        Typically returns the NodeSet by calling getNodeSet(), but will be overridden for contexts that more naturally produce individual values, e.g. VariableContext
        Overrides:
        getValue in class EvalContext
        Returns:
        Object
      • 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
      • 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
      • nextSet

        public boolean nextSet()
        Description copied from class: EvalContext
        Returns true if there is another sets of objects to interate over. Resets the current position and node.
        Overrides:
        nextSet in class EvalContext
        Returns:
        boolean