Class MapFunctionSet.MapEntry

All Implemented Interfaces:
Callable, Function, GroundedValue, Item, Sequence
Enclosing class:
MapFunctionSet

public static class MapFunctionSet.MapEntry extends SystemFunction
Implementation of the extension function map:entry(key, value) => Map
  • Constructor Details

    • MapEntry

      public MapEntry()
  • Method Details

    • call

      public Sequence call(XPathContext context, Sequence[] arguments) throws XPathException
      Description copied from interface: Function
      Invoke the function
      Parameters:
      context - the XPath dynamic evaluation context
      arguments - the actual arguments to be supplied
      Returns:
      the result of invoking the function
      Throws:
      XPathException - if a dynamic error occurs within the function
    • getResultItemType

      public ItemType getResultItemType(Expression[] args)
      Get the return type, given knowledge of the actual arguments
      Overrides:
      getResultItemType in class SystemFunction
      Parameters:
      args - the actual arguments supplied
      Returns:
      the best available item type that the function will return
    • getStreamerName

      public String getStreamerName()
      Description copied from class: SystemFunction
      Get a name that identifies the class that can be used to evaluate this function in streaming mode, that is, supplying one item or event at a time as it is delivered by the parser. Special streaming support is generally available in Saxon-EE for all system functions that take a sequence as their argument.
      Overrides:
      getStreamerName in class SystemFunction
      Returns:
      a name that identifies a class that supports streamed evaluation of this system function, or null if no such class is available. The mapping of names to classes is defined in the Saxon-EE class StreamerMap. In non-streaming Saxon editions (HE and PE) the method always returns null.