Symbol

Meaning

/

The forward slash character indicates that the Server is to follow any subtype of HierarchicalReferences.

.

The period (dot) character indicates that the Server is to follow any subtype of an Aggregates ReferenceType.

<[#!ns:]ReferenceType>

A 0:String delimited by the ‘<’ and ‘>’ symbols specifies the BrowseName of a ReferenceType to follow. By default, any References of the subtypes the ReferenceType are followed as well. A ‘#’ placed in front of the BrowseName indicates that subtypes should not be followed.

A ‘!’ in front of the BrowseName is used to indicate that the inverse Reference should be followed.

The BrowseName may be qualified with a namespace index (indicated by a numeric prefix followed by a colon). This namespace index is used specify the namespace component of the BrowseName for the ReferenceType. If the namespace prefix is omitted, then namespace index 0 is used.

[ns:]BrowseName

A 0:String that follows a ‘/’, ‘.’ or ‘>’ symbol specifies the BrowseName of a target Node to return or follow. This BrowseName may be prefixed by its namespace index. If the namespace prefix is omitted, then namespace index 0 is used.

Omitting the final BrowseName from a path is equivalent to a wildcard operation that matches all Nodes which are the target of the Reference specified by the path.

&

The & sign character is the escape character. It is used to specify reserved characters that appear within a BrowseName. A reserved character is escaped by inserting the ‘&’ in front of it. Examples of BrowseNames with escaped characters are:

Received browse path name Resolves to

“&/Name_1” “/Name_1”

“&.Name_2” “.Name_2”

“&:Name_3” “:Name_3”

“&&Name_4” “&Name_4”