Attribute Transformations

An attribute transformation is a regular expression (Regex) string that describes a unique search pattern.

Regex provides a method to find designated characters in a segment of an incoming HL7 message. Regex serves as a parser generator, where it examines text and identifies parts that match the provided specification. For more information on regular expressions, visit the Understanding Regular Expressions (Regex) page.

Attribute transformations can only be defined in top-level datasets for inherited attributes. This limitation means that for a child of an abstract dataset, all attribute transformations must be applied to the abstract dataset itself instead of the concrete instance of the child.

Note: Only string attributes can be transformed.