Package com.saxonica.functions.qt4

Class Parts

java.lang.Object
net.sf.saxon.functions.AbstractFunction
net.sf.saxon.functions.SystemFunction
com.saxonica.functions.qt4.Parts
All Implemented Interfaces:
Callable, FunctionItem, GroundedValue, Item, Sequence
public class Parts extends SystemFunction implements Callable
Proposed XPath 4.0 function that returns the components of an atomic value as a map (for example, the components of a dateTime, a duration, or a URI).

  • Constructor Details

    • Parts

      public Parts()

  • Method Details

    • 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

    • call

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

    • getComponentType

      public static SequenceType getComponentType(BuiltInAtomicType type, String componentName)

    • getComponentValue

      public static SequenceIterator getComponentValue(AtomicValue value, String componentName)

    • uriComponents

      public static DictionaryMap uriComponents(String arg)