Creating Queries and Custom Operations 

Use

A query is a data retrieval operation that is modeled by applying detailed selection criteria; a custom operation is a service operation for validations, business logic, and that like that must be coded manually.

Prerequisites

You have created client data objects to use in your query or custom operation.

More information: Creating the Data Model

Procedure

1. Create a Service

More information: Creating a Service

2. Model the Query Service or Custom Operation

●      You define the parameters for your query.

More information: Modeling a Query Service

●      You define the parameters for your custom operation and provide code for its implementation.

More information: Modeling a Custom Operation