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. Using the IntelliScript Editor
  7. XMap
  8. Libraries
  9. Schema Object
  10. Command Line Interface
  11. Scripts
  12. Parsers
  13. Script Ports
  14. Document Processors
  15. Formats
  16. Data Holders
  17. Anchors
  18. Transformers
  19. Actions
  20. Serializers
  21. Mappers
  22. Locators, Keys, and Indexing
  23. Streamers
  24. Validators, Notifications, and Failure Handling
  25. Validation Rules
  26. 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.