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

Comparison Between Actions and Transformers

Comparison Between Actions and Transformers

Some actions perform operations that are similar to transformers, for example, modifying a string or querying a database. However, actions differ from transformers in some fundamental ways.
The following table summarizes the differences:
Operation
Transformers
Actions
Input
The input of a transformer is a single string.
The input is implemented by the action. An action can have multiple inputs. The inputs can be data holders.
Output
The output of a transformer is a string.
The output is implemented by the action. For example, an action can create output data holders.
Side effects
A transformer has no side effects, other than modifying the input string.
An action can have side effects, such as updating a database.