org.ucl.xpath.function
Class FnBaseUri

java.lang.Object
  org.ucl.xpath.function.Function
      org.ucl.xpath.function.FnBaseUri

public class FnBaseUri

extends Function

Returns the value of the base-uri property for $arg as defined by the accessor function dm:base-uri() for that kind of node in Section 5.1 base-uri Accessor of the specification. If $arg is the empty sequence, the empty sequence is returned. Document, element and processing-instruction nodes have a base-uri property which may be empty. The base-uri property of all other node types is the empty sequence. The value of the base-uri property is returned if it exists and is not empty. Otherwise, if the node has a parent, the value of dm:base-uri() applied to its parent is returned, recursively. If the node does not have a parent, or if the recursive ascent up the ancestor chain encounters a node whose base-uri property is empty and it does not have a parent, the empty sequence is returned.

Field Summary

Fields inherited from class org.ucl.xpath.function.Function

_arity, _fl, _name

Constructor Summary

FnBaseUri()
Constructor for FnBaseUri.

Method Summary

static ResultSequence	base_uri(java.util.Collection args) Base-Uri operation.
ResultSequence	evaluate(java.util.Collection args) Evaluate arguments.
static java.util.Collection	expected_args() Obtain a list of expected arguments.

Methods inherited from class org.ucl.xpath.function.Function

arity, convert_argument, convert_arguments, dynamic_context, name, set_function_library, signature, signature, signature, static_context

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FnBaseUri

public FnBaseUri()

Constructor for FnBaseUri.

Method Detail

evaluate

public ResultSequence evaluate(java.util.Collection args)
                        throws DynamicError

Evaluate arguments.

Specified by:

evaluate in class Function

Parameters:

args - argument expressions.

Returns:

Result of evaluation.

Throws:

DynamicError - Dynamic error.

base_uri

public static ResultSequence base_uri(java.util.Collection args)
                               throws DynamicError

Base-Uri operation.

Parameters:

args - Result from the expressions evaluation.

Returns:

Result of fn:base-uri operation.

Throws:

DynamicError - Dynamic error.

expected_args

public static java.util.Collection expected_args()

Obtain a list of expected arguments.

Returns:

Result of operation.