A Glance at ‘Apex Classes’ in Salesforce Lightning to Improve Sales, UI & UX
Salesforce Lightning provides Apex, a multitenant language, to write backend codes for the particular custom business applications. Apex Codes are written in classes. Once an Apex Class is created, you can view the saved code, as well as the API for which the class is saved. Apex Classes can be reviewed anytime for validity and status. Apex Class in Salesforce Lightning is a template to create Apex objects. The Apex Class feature is available in Performance, Unlimited, Developer, and Enterprise Editions of Salesforce Lightning.
Apex Classes Empower Salesforce Lightning To Be the Best CRM Platform:
Salesforce Lightning environment enables the organizations to run and customize the applications for data-driven sales, service, UX and support ensuring a performance boost. Apex allows the developers to design the customized flow, transaction and management statements in conjunction with the calls to API. It enables to interact with collected data. The customizable classes, variables, methods and statements of Apex Class empower Salesforce Lightning in the following ways:
- Apex Classes ensure that the code stays valid during the different transactions
- The large numbers of records can be processed simultaneously using Apex classes.
- It allows for asynchronous operations to save time
- Apex Classes customization allows to schedule the processing of different batches at different times and for different periods.
- The large record data size can be broken in to small batches to improve the quality, monitoring and management
Why Use ‘Apex Class’ in Salesforce Lightning Instead of ‘Normal Apex’?
Four major reasons make Apex Class a preferred choice of Salesforce Lightning users against the option of using Normal Apex:
- SOQL queries retrieval: Apex Class can retrieve 50,000,000 SOQL queries; while, Normal Apex can retrieve only 50,000 SOQL queries.
- SOQL queries: Apex Class uses 200 records/cycle to execute SOQL queries; while, Normal Apex uses just 100 records/cycle to execute SOQL queries.
- Errors: Normal Apex classes are more vulnerable than Apex Class to encounter errors during bulk records processing.
- Heap size: Apex Class has 12 MB heap size; Normal Apex has 6 MB heap size.
The Key Elements of Apex Class:
- Apex Class Variables:
Variables specify the Apex object like an object’s type or name. Multiple variables can be initialized in a single string. If the variables are not assigned to a value, these are considered ‘Null’. Variable names are case-insensitive; for example, use- ‘Integer I’; rather than ‘Integer I’. The scope of an Apex Class variable, declared in a method, is limited only up to that particular method. To declare the Apex Class variable, define the following:
- Variable name
- Value in variable
- Modifiers like public, final, static
- Data type like Boolean or String
The standard syntax for defining a variety of variable is:
- Apex Class Access Modifiers
- Private: This is a by-default Access Modifier. By opting for it, Apex Class can be accessed only locally; you can’t access Private Apex Class from outside.
- Public: ‘Public Apex Class’ is accessible within the organization according to the defined namespace. The majority of Apex Classes are programmed for ‘Public’ access.
- Global: The ‘Global Apex Class’ can be accessed by all the Apex codes don’t limited to your organization. The ‘Global Apex Class’ access modifier option is used rarely only if the Apex code supports other applications also.
- Apex Class Sharing Modes in Salesforce Lightning:
- With Sharing or User Mode: The class specified with ‘With Sharing’ keyword respects the User’s profile permission and access settings. For example, if a user triggers the record update for 40 records but accesses only 25 records leaving rest of 15 records un-accessed, then, only 25 records will be updated and the rest of 15 records wouldn’t be updated.
- Without Sharing or System Mode: Even if the user doesn’t access 25 records out of 40, all the 40 records will be updated under System mode defined in Apex Class.
- Virtual Mode: Apex Class defined with Virtual Mode can be extended and overridden through a virtual keyword.
- Abstract Mode: The object of an abstract class can’t be instantiated until it is extended by some other class.
How to Enable Apex Class in Salesforce Lightning:
- Access ‘Apex Classes through ‘Quick Find box’.
- To add development functionality, go to the Developer Console.
- To create an Apex class, click ‘New’.
- Write the ‘Apex code’ with Apex Class elements in the editor.
Apex Classes is an amazing feature that helps the Salesforce Lightning users to streamline the services and processing for the particular objectives aligned to productivity, performance, marketing, profitability, CRM etc. The leading IT | ITSM companies offer comprehensive support and training services for Salesforce Lightning Apex Classes development under a tailor-made module to add a competitive edge to Salesforce environment. Outsourcing of Salesforce Lightning Apex Classes development services save your considerable time by eliminating test & try efforts in addition to leverage each benefit for which Apex Class is designed.