Table of Contents

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  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

Partition Initialization Function

Partition Initialization Function

The Integration Service calls p_<proc_name>_partitionInit() function before it passes data to the Custom transformation. The Integration Service calls this function once for each partition at a Custom transformation instance.
If you want the Integration Service to run a specific process before it passes data through a partition of the Custom transformation, you must include it in this function.
Use the following syntax:
INFA_STATUS p_<proc_name>_partitionInit(INFA_CT_PARTITION_HANDLE transformation);
The following table describes the arguments for this function:
Argument
Datatype
Input/
Output
Description
transformation
INFA_CT_PARTITION_HANDLE
Input
Partition handle.
The return value datatype is INFA_STATUS. Use INFA_SUCCESS and INFA_FAILURE for the return value. When the function returns INFA_FAILURE, the Integration Service fails the session.
When the Custom transformation requires one thread for each partition, you can include thread-specific operations in the partition initialization function.

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