User defined Java Expression

Description

User Defined Java Expression calculates new field values within a data stream using custom Java expressions. Use this step when you need the performance and type safety of Java for inline calculations without writing a full Java class — for example, performing type conversions, calling Java string methods, or applying mathematical functions. Each expression produces a new output field, making this step a lightweight alternative to User Defined Java Class for simpler transformation needs.

Configurations

Field Name	Description
Step name	Specify the name of the step as it appears in the workflow workspace. This name has to be unique in a single workflow.
New Field	The new field in the data stream. If you want to overwrite an existing field, you need to define the field here and in the "Replace value" option.
Java Expression	Specify the Java Expression
Value Type	Specify the data type.
Length	For Number: Total number of significant figures in a number; For String: total length of string; For Date: length of printed output of the string. Specify the length, - For Number: Total number of significant figures in a number - For String: total length of string - For Date: length of printed output of the string.
Precision	For Number: Number of floating point digits; For String, Date, Boolean: unused. No. of digits after decimal. Specify the precision, - For Number: Number of floating point digits; - For String, Date, Boolean: unused.
Replace value	Select a field from the drop down list when you want to replace a field.