Defining Business Objects Operations 

Use

You use the CRUD (Create, Read, Update, and Delete) and query operations to manipulate instances of the business objects. The CRUD methods cannot be modified. You can define query methods according to the data you want to query.

Prerequisites

You have created the application carpool and the following business objects:

·        Employee

·        Travel

·        TravelLocation

Procedure

 

       1.      Go to the Operations tab page of the business object Employee.

       2.      From the Existing Operations view, choose Add.

       3.      The New Operation wizard appears.

       4.      Configure the following operations parameters:

                            a.      In the Operation name field, enter findByLastName.

                            b.      In the Description field, enter Find by last name.

                            c.      From the attributes list, select lastName.

                            d.      Choose Finish.

The operation appears in the Existing Operations list.

       5.      Repeat steps 2-4 to create query methods for the business objects listed in the tables below..

Business Object	Method Name	Description	Parameters Used
TravelLocation	findById	Find by id	id
Travel	findByStartDateStartLocationAndTargetLocation	Find by start date, start and target locations ids	●      startDate   ●      The ids of the following parameters: ¡        startLocation ¡        targetLocation

       6.      On the Permissions tab page, for the Travel business object you have created, make sure that the Permissions checks enabled and Permissions on instance level  indicators are disabled. This makes testing easier - you do not have to give permissions for the business object nodes services. Business object nodes services with disabled permissions checks are not recommended for real applications.

       7.      Save your application.

Result

You have created query operations for your business objects.

Step 4:

Creating an Application Service