org.ucl.xpath.function
Class FnCount

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

public class FnCount

extends Function

Returns the number of items in the value of $arg. Returns 0 if $arg is the empty sequence.

Field Summary

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

_arity, _fl, _name

Constructor Summary

FnCount()
Constructor for FnCount.

Method Summary

static ResultSequence	count(java.util.Collection args) Count operation.
ResultSequence	evaluate(java.util.Collection args) Evaluate 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

FnCount

public FnCount()

Constructor for FnCount.

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.

count

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

Count operation.

Parameters:

args - Result from the expressions evaluation.

Returns:

Result of fn:count operation.

Throws:

DynamicError - Dynamic error.