Table of Contents

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  1. Preface
  2. Introduction to Data Transformation
  3. Data Processor Transformation
  4. Wizard Input and Output Formats
  5. Relational Input and Output
  6. XMap
  7. Libraries
  8. Schema Object
  9. Command Line Interface
  10. Scripts
  11. Parsers
  12. Script Ports
  13. Document Processors
  14. Formats
  15. Data Holders
  16. Anchors
  17. Transformers
  18. Actions
  19. Serializers
  20. Mappers
  21. Locators, Keys, and Indexing
  22. Streamers
  23. Validators, Notifications, and Failure Handling
  24. Validation Rules
  25. Custom Script Components

Data Transformation User Guide

Data Transformation User Guide

XPath Expression Editor

XPath Expression Editor

Create expressions in the XPath Expression Editor. XPath is a query language used to select nodes in an hierarchical document and perform computations.
You can use XPath expressions to define the context for a mapping statement. You can define conditions to transform and filter the data using different XPath expressions in mapping statement properties. You can add various arithmetic calculations to a mapping statement using XPath expressions.
When you click the Open button in the Input, Condition, or Output field, the Expression Editor appears. The following figure shows the XPath Expression Editor:
Use the XPath Expression Editor to create expressions for mapping statements. You can create XPath statements for the Input, Condition, or Output fields. The XPath expression defines the elements to which the mapping statement applies.
Create expressions in the
Expression
panel.
The XPath Expression Editor has a
Navigation
panel with a function library that you can use to create XPath expressions. The functions are standard for the W3C XML Path Language. The function library also includes some functions that are specific to the Data Processor transformation.


Updated September 26, 2018