Table of Contents

Search

  1. Preface
  2. Working with Transformations
  3. Aggregator Transformation
  4. Custom Transformation
  5. Custom Transformation Functions
  6. Data Masking Transformation
  7. Data Masking Examples
  8. Expression Transformation
  9. External Procedure Transformation
  10. Filter Transformation
  11. HTTP Transformation
  12. Identity Resolution Transformation
  13. Java Transformation
  14. Java Transformation API Reference
  15. Java Expressions
  16. Java Transformation Example
  17. Joiner Transformation
  18. Lookup Transformation
  19. Lookup Caches
  20. Dynamic Lookup Cache
  21. Normalizer Transformation
  22. Rank Transformation
  23. Router Transformation
  24. Sequence Generator Transformation
  25. Sorter Transformation
  26. Source Qualifier Transformation
  27. SQL Transformation
  28. Using the SQL Transformation in a Mapping
  29. Stored Procedure Transformation
  30. Transaction Control Transformation
  31. Union Transformation
  32. Unstructured Data Transformation
  33. Update Strategy Transformation
  34. XML Transformations

Transformation Guide

Transformation Guide

getMetadata

getMetadata

Retrieves Java transformation metadata at runtime. The getMetadata method retrieves metadata that you save with the storeMetadata method, such as a filter condition that the optimizer passes to the Java transformation in the pushFilter function.
Use the following syntax:
getMetadata (String key);
The following table describes the parameters:
Parameter
Parameter Type
Datatype
Description
key
Input
String
Identifies the metadata. The getMetadata method uses the key to determine which metadata to retrieve.
You can add the getMetadata method to the Java code on the following code entry tabs:
  • Helper
  • On Input
  • At End
  • Optimizer Interfaces
  • Functions
You can configure the getMetadata method to retrieve filter conditions for push-into optimization. The getMetadata method can retrieve each filter condition that you store from the optimizer.
// Retrieve a filter condition String mydata = getMetadata ("FilterKey");

0 COMMENTS

We’d like to hear from you!