Chapter 5. Creating the mortgage-process data objects

Data objects are the building blocks for the rule assets that you create. Data objects are custom data types implemented as Java classes in specified packages of your project. These custom data types determine what data your assets and your decision services are based on.

The mortgage process project uses the following data objects:

  • Applicant
  • Property
  • ValidationErrorDO
  • Application

5.1. Creating the Applicant data object

Follow these steps to create the Applicant data object, which contains information about the applicant. This is the basic information required to apply for the loan in this tutorial.

Procedure

  1. In Business Central, click on the MySpace default space.
  2. Click Menu → Design → Projects and click mortgage-process.
  3. Click Add Asset and select Data Object.
  4. Enter Applicant in the Data Object field of the Create new Data Object window.
  5. Select com.myspace.mortgage_process from the Package pull-down menu and click Ok.
  6. Enter Applicant in the Label field of the 'Applicant'- general properties section.

  7. Click +add field and input the following Applicant data object values. Click Create and continue after each addition. For the last addition, click Create.

    Figure 5.1. Applicant data object field values

    screen capture of the Applicant data object field values
  8. Click Save.

5.2. Creating the Property data object

Follow these steps to create the Property data object, which contains information about the property details, such as the property age and price.

Procedure

  1. In Business Central, click on the MySpace default space.
  2. Click Menu → Design → Projects and click mortgage-process.
  3. Click Add Asset and select Data Object.
  4. Enter Property in the Data Object field of the Create new Data Object window.
  5. Select com.myspace.mortgage_process from the Package pull-down menu and click Ok.
  6. Enter Property in the Label field of the 'Property'- general properties section.

  7. Click +add field and input the following Property data object values. Click Create and continue after each addition. For the last addition, click Create.

    Figure 5.2. Property data object field values

    screen capture of the Property data object field values
  8. Click Save.

5.3. Creating the ValidationErrorDO data object

Follow these steps to create the ValidationErrorDO data object, which specifies the cause of an application error.

Procedure

  1. In Business Central, click on the MySpace default space.
  2. Click Menu → Design → Projects and click mortgage-process.
  3. Click Add Asset and select Data Object.
  4. Enter ValidationErrorDO in the Data Object field of the Create new Data Object window.
  5. Select com.myspace.mortgage_process from the Package pull-down menu and click Ok.
  6. Enter ValidationErrorDO in the Label field of the 'ValidationErrorDO'- general properties section.

  7. Click +add field and input the following ValidationErrorDO data object values. Click Create and continue after each addition. For the last addition, click Create.

    Figure 5.3. ValidationErrorDO data object field values

    screen capture of the ValidationErrorDO data object field values
  8. Click Save.

5.4. Creating the Application data object

Follow these steps to create the Application data object, which contains information about the mortgage details, such as the down payment and the mortgage amount.

Procedure

  1. In Business Central, click on the MySpace default space.
  2. Click Menu → Design → Projects and click mortgage-process.
  3. Click Add Asset and select Data Object.
  4. Enter Application in the Data Object field of the Create new Data Object window.
  5. Select com.myspace.mortgage_process from the Package pull-down menu and click Ok.
  6. Enter Application in the Label field of the 'Application'- general properties section.

  7. Click +add field and input the following Application data object values. Click Create and continue after each addition. For the last addition, click Create.

    Figure 5.4. Application data object field values

    screen capture of the Application data object field values
  8. Click Save.