Class ItemsStarting

All Implemented Interfaces:
Callable, FunctionItem, GroundedValue, Item, Sequence
Direct Known Subclasses:
ItemsStarting.ItemsAfter, ItemsStarting.ItemsFrom

public abstract class ItemsStarting extends SystemFunction
This class supports the two extension functions saxon:items-from and saxon:items-after, also available as experimental XPath 4.0 functions in the fn namespace. These functions take two arguments: the first is a sequence of items, the second is a function used as a predicate to determine the first item to be included in the result. The functions differ in whether the matching item is included in the result or not.
  • Constructor Details

    • ItemsStarting

      public ItemsStarting()
  • Method Details

    • includeMatchingItem

      protected abstract boolean includeMatchingItem()
    • call

      public Sequence call(XPathContext context, Sequence[] arguments) throws XPathException
      Evaluate this function call at run-time
      Parameters:
      context - The XPath dynamic evaluation context
      arguments - The values of the arguments to the function call.
      Returns:
      the results of the function, as a sequence of arrays
      Throws:
      XPathException - if a dynamic error occurs during evaluation of the function. The Saxon run-time code will add information about the error location.