Class BaseUri_1

All Implemented Interfaces:
Callable, Function, GroundedValue, Item, Sequence

public class BaseUri_1 extends SystemFunction implements Callable
This class implements the fn:base-uri() function in XPath 2.0
  • Constructor Details

    • BaseUri_1

      public BaseUri_1()
  • Method Details

    • call

      public ZeroOrOne call(XPathContext context, Sequence[] arguments) throws XPathException
      Description copied from interface: Callable
      Call the Callable.
      Specified by:
      call in interface Callable
      Specified by:
      call in interface Function
      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
    • getCompilerName

      public String getCompilerName()
      Description copied from class: SystemFunction
      Get the (local) name of a class that can be used to generate bytecode for this system function
      Overrides:
      getCompilerName in class SystemFunction
      Returns:
      the name of a bytecode generation class, or null if there is no bytecode support for this function