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

Predicates

Predicates

A predicate is an expression that you configure to find a node in a hierarchical document. You can configure the expression to find a specific value. Create a predicate in an Input, Condition, or Output field of a mapping statement.
When you define a predicate, enclose the expression in square brackets [ ] after the node.
/<node>[expression]
For example, the following expression selects the book elements that are children of bookstore and have a price element with a value greater than 55.00:
/bookstore/book[price>55.00]
The following expression selects the title elements of the book elements that are children of bookstore with a price element value greater than 55.00:
/bookstore/book[price>55.00]/title
The following expression selects the title elements that have an attribute lang with a value of "eng":
//title[@lang="eng"]
The Data Processor transformation cannot accept all XPath statements in the Output field when you configure a mapping statement with the Add mode or the Match or Add mode.


Updated February 12, 2020