Class PartsOfDateTimeFn

All Implemented Interfaces:
Callable, ArityOneFunction, IFunctionWithRetainedParameterNames, FunctionItem, GroundedValue, Item, Sequence

public class PartsOfDateTimeFn extends SystemFunction implements ArityOneFunction
Implements fn:parts-of-dateTime. Initially proposed by XPath 4.0.
  • Constructor Details

    • PartsOfDateTimeFn

      public PartsOfDateTimeFn()
  • Method Details

    • call1

      public Sequence call1(XPathContext context, Sequence arg0) throws XPathException
      Call this function with one argument
      Specified by:
      call1 in interface ArityOneFunction
      Parameters:
      context - the dynamic evaluation context
      arg0 - the only argument
      Returns:
      the result of the function call
      Throws:
      XPathException - if the call fails with a dynamic error
    • call

      public Sequence call(XPathContext context, Sequence[] arguments) throws XPathException
      Description copied from interface: Callable
      Call the Callable.
      Specified by:
      call in interface Callable
      Parameters:
      context - the dynamic evaluation context
      arguments - the values of the arguments, supplied as Sequences.

      Generally it is advisable, if calling iterate() to process a supplied sequence, to call it only once; if the value is required more than once, it should first be converted to a GroundedValue by calling the utility method SequenceTool.toGroundedValue().

      If the expected value is a single item, the item should be obtained by calling Sequence.head(): it cannot be assumed that the item will be passed as an instance of Item or AtomicValue.

      It is the caller's responsibility to perform any type conversions required to convert arguments to the type expected by the callee. An exception is where this Callable is explicitly an argument-converting wrapper around the original Callable.

      Returns:
      the result of the evaluation, in the form of a Sequence. It is the responsibility of the callee to ensure that the type of result conforms to the expected result type.
      Throws:
      XPathException - if a dynamic error occurs during the evaluation of the expression