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

JExprParamMetadata Class

JExprParamMetadata Class

Instantiates an object that represents the parameters for an expression and sets the metadata for the parameters.
You use an array of JExprParamMetadata objects as input to the defineJExpression method to set the metadata for the input parameters. You can create a instance of the JExprParamMetadata object on the
Java Expressions
code entry tab or in defineJExpression.
Use the following syntax:
JExprParamMetadata paramMetadataArray[] = new JExprParamMetadata[numberOfParameters]; paramMetadataArray[0] = new JExprParamMetadata(datatype, precision, scale); ... paramMetadataArray[numberofParameters - 1] = new JExprParamMetadata(datatype, precision, scale);;
The following table describes the arguments:
Argument
Argument Type
Argument Datatype
Description
datatype
Input
EDataType
Datatype of the parameter.
precision
Input
Integer
Precision of the parameter.
scale
Input
Integer
Scale of the parameter.
For example, use the following Java code to instantiate an array of two JExprParamMetadata objects with String datatypes, precision of 20, and scale of 0:
JExprParamMetadata params[] = new JExprParamMetadata[2]; params[0] = new JExprParamMetadata(EDataType.STRING, 20, 0); params[1] = new JExprParamMetadata(EDataType.STRING, 20, 0); return defineJExpression(":LKP.LKP_addresslookup(X1,X2)",params);

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