Using the Data Transform component

2 Tasks

15 mins

Pega Platform

Pega Platform

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Beginner Pega Platform English

Scenario

In the Sample application, developers are creating new data structures in the system every day.

To ensure efficient data management, the system needs to generate unique identifiers for every new data entry. As a System Architect, create a re-usable Data Flow that automatically creates unique identifiers.

Use the following credentials to log in to the exercise system:

Role	User name	Password
System architect	SystemArchitect	rules

Your assignment consists of the following tasks:

Task 1: Create the Generate Unique IDs Data Flow

Create a new re-usable Data Flow in the Sample-Data class, named Generate Unique IDs. Ensure that both the source and the destination of the Data Flow are abstract.

Task 2: Preview the records in the Data Flow

Test the Data Flow to confirm that UniqueID is generated for each record.

 

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Challenge Walkthrough

Detailed Tasks

1 Create the Generate Unique IDs Data Flow

1. Log in as the system architect:
   1. In the User name field, enter SystemArchitect.
   2. In the Password field, enter rules.
2. In the navigation pane of Dev Studio, click App to open the Application Explorer.
3. In the Application Explorer, search for the Sample-Data class.
4. In the Application Explorer, right-click on the Sample-Data class, and then click Create > Data Model > Data Flow.
5. On the Create Data Flow rule form, create a new Data Flow:
   1. In the Label field, enter Generate Unique IDs.
   2. In the upper-right corner, click Create and open.
      
6. On the Edit Data flow: Generate Unique IDs rule form, complete the following settings:
   1. On the canvas, on the first shape, click Add > Data Transform to add a new Data Transform component.
      
7. On the canvas, double-click the [Data transform] component to set up the Data Transform configurations:
8. In the Data transform configurations window, complete the following settings:
   1. In the Name field, enter Generate Unique IDs.
   2. In the Data Transform list, enter or select UniqueIDGenerator.
   3. In the upper-right corner, click Save.

2 Preview the records in the Data Flow

1. On the Data flow: Generate Unique IDs rule form, in the upper-right corner, click Check out.
2. On the Edit Data flow: Generate Unique IDs rule form, right-click the Generate Unique IDs component.
   Note that the Preview option is grayed out.
   
   Tip: To be able to preview the data in the components of a Data Flow, the source of the Data Flow must be a non-abstract data source. To test Data Flows that start with an abstract source, you can temporarily replace the source with a non-abstract data source.

3. On the Edit Data flow: Generate Unique IDs rule form, configure the following settings:
   1. On the canvas, double-click the first shape to set up the source configurations.
   2. In the Source list, select Data set.
   3. In the Data set field, enter or select SampleData.
      Note: For the purposes of this exercise, the SampleData File Data Set is created for you with three sample rows.
   4. Click Submit.
   5. In the upper-right corner, click Save.

4. On the Edit Data flow: Generate Unique IDs rule form, right-click the SampleData data set, and then select Open data set.
5. On the Data set: Sample Data rule form, in the File preview section, note that there are three sample records.
   
6. On the Data set: Sample Data rule form, in the upper-right, close the rule to return to the GenerateUniqueIDs Data Flow.
7. On the Edit Data flow: Generate Unique IDs rule form, right-click the Generate Unique IDs Data Transform component, and then select Preview.
   1. On the Input Data Preview window, confirm that a UniqueID is set for each record.
      
   2. Close the Input Data Preview window.
8. On the Data flow: Generate Unique IDs rule form, in the upper-right corner, click Discard to return to the original Data Flow record with the Abstract start shape.
   

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