org.ucl.xpath.function
Class FnStringLength

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

public class FnStringLength

extends Function

Function to calculate string length.

Usage: fn:string-length($arg as xs:string?) as xs:integer

This class returns an xs:integer equal to the length in characters of the value of $arg.

If the value of $arg is the empty sequence, the xs:integer 0 is returned.

Field Summary

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

_arity, _fl, _name

Constructor Summary

FnStringLength()
Constructor for FnStringLength

Method Summary

ResultSequence	evaluate(java.util.Collection args) Evaluate the arguments.
static java.util.Collection	expected_args() Calculate the expected arguments.
static ResultSequence	string_length(java.util.Collection args) Obtain the string length of the 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

FnStringLength

public FnStringLength()

Constructor for FnStringLength

Method Detail

evaluate

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

Evaluate the arguments.

Specified by:

evaluate in class Function

Parameters:

args - are evaluated.

Returns:

The evaluation of the string length of the arguments.

Throws:

DynamicError - Dynamic error.

string_length

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

Obtain the string length of the arguments.

Parameters:

args - are used to obtain the string length.

Returns:

The result of obtaining the string length from the arguments.

Throws:

DynamicError - Dynamic error.

expected_args

public static java.util.Collection expected_args()

Calculate the expected arguments.

Returns:

The expected arguments.