Node set functions

This section describes the functions that operate on schema nodes that are available in expressions.

count

Returns the number of nodes in a given node set.

    count(node-set)

node-set is the path to a node in the process data model.

A number that holds the number of nodes.

Returns a number equal to the context size from the expression evaluation context.

    last()

None.

number.

Returns a number equal to the context position from the expression evaluation context.

    position()

None.

number.

Returns the sum, for each node in a given node-set, of the result of converting the string-values of the node to a number.

    sum(node-set)

node-set is a node in the XML.

number.