Numeric Routines - 7.1

Talend Big Data Studio User Guide

author
Talend Documentation Team
EnrichVersion
7.1
EnrichProdName
Talend Big Data
task
Design and Development
EnrichPlatform
Talend Studio
Numeric routines allow you to return whole or decimal numbers in order to use them as settings in one or more Job components. To add numeric IDs, for instance.

To access the routines, double-click the Numeric category, in the system folder. The Numeric category contains several routines, notably sequence, random and convertImpliedDecimalFormat (decimal):

Routine

Description

Syntax

sequence

Returns an incremental numeric ID.

Numeric.sequence("Parameter name", start value, increment value)

resetSequence

Creates a sequence if it doesn't exist and attributes a new start value.

Numeric.resetSequence (Sequence Identifier, start value)

removeSequence

Removes a sequence.

Numeric.RemoveSequence (Sequence Identifier)

random

Returns a random whole number between the maximum and minimum values.

Numeric.random(minimum start value, maximum end value)

convertImpliedDecimalFormat

Returns a decimal with the help of an implicit decimal model.

Numeric.convertImpliedDecimalFormat ("Target Format", value to be converted)

The three routines sequence, resetSequence, and removeSequence are closely related.

  • The sequence routine is used to create a sequence identifier, named s1 by default, in the Job. This sequence identifier is global in the Job.

  • The resetSequence routine can be used to initialize the value of the sequence identifier created by sequence routine.

  • The removeSequence routine is used to remove the sequence identifier from the global variable list in the Job.