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You're reading from  Force.com Enterprise Architecture - Second Edition

Product typeBook
Published inMar 2017
Reading LevelIntermediate
PublisherPackt
ISBN-139781786463685
Edition2nd Edition
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Andrew Fawcett
Andrew Fawcett
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Andrew Fawcett

Andrew Fawcett has over 30 years of experience holding several software development-related roles with a focus around enterprise-level product architecture. He is experienced in managing all aspects of the software development life cycle across various technology platforms, frameworks, industry design patterns, and methodologies. He is currently a VP, Product Management, and a Salesforce Certified Platform Developer II at Salesforce. He is responsible for several key platform features and emergent products for Salesforce. He is an avid blogger, open source contributor and project owner, and an experienced speaker. He loves watching movies, Formula 1 motor racing, and building Lego!
Read more about Andrew Fawcett

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The Selector class template


A Selector class, like the Domain class, utilizes inheritance to gain some standard functionality; in this case, the base class delivered through the FinancialForce.com Enterprise Apex Patterns library, fflib_SObjectSelector.

A basic example is as follows:

public class RacesSelector extends fflib_SObjectSelector {

    public List<Schema.SObjectField> getSObjectFieldList() {
       return new List<Schema.SObjectField> {
           Race__c.Id,
           Race__c.Name,
           Race__c.Status__c,
           Race__c.Season__c,
           Race__c.FastestLapBy__c,
           Race__c.PollPositionLapTime__c,
           Race__c.TotalDNFs__c };
    }

    public Schema.SObjectTypegetSObjectType() {
        return Race__c.sObjectType;
    }
}

Tip

The base class uses Dynamic SOQL to implement the features described in this chapter. One potential disadvantage this can bring is that references to the fields are made without the Apex compiler knowing about them, and...

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Force.com Enterprise Architecture - Second Edition
Published in: Mar 2017Publisher: PacktISBN-13: 9781786463685

Author (1)

author image
Andrew Fawcett

Andrew Fawcett has over 30 years of experience holding several software development-related roles with a focus around enterprise-level product architecture. He is experienced in managing all aspects of the software development life cycle across various technology platforms, frameworks, industry design patterns, and methodologies. He is currently a VP, Product Management, and a Salesforce Certified Platform Developer II at Salesforce. He is responsible for several key platform features and emergent products for Salesforce. He is an avid blogger, open source contributor and project owner, and an experienced speaker. He loves watching movies, Formula 1 motor racing, and building Lego!
Read more about Andrew Fawcett