Apex Reference Guide

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Apex Reference Guide
Release Notes
Apex DML Operations
ApexPages Namespace
AppLauncher Namespace
Approval Namespace
Auth Namespace
Cache Namespace
Canvas Namespace
ChatterAnswers Namespace
CommerceExtension Namespace
CommerceOrders Namespace
CommercePayments Namespace
CommerceTax Namespace
Compression Namespace
ConnectApi Namespace
Context Namespace
Database Namespace
Datacloud Namespace
DataRetrieval Namespace
DataSource Namespace
DataWeave Namespace
Dom Namespace
EventBus Namespace
ExternalService Namespace
Flow Namespace
FormulaEval Namespace
FormulaBuilder Class
FormulaGlobal Enum
FormulaInstance Class
FormulaReturnType Enum
fsccashflow Namespace
Functions Namespace
industriesNlpSvc
IndustriesDigitalLending Namespace
Invocable Namespace
IsvPartners Namespace
KbManagement Namespace
LxScheduler Namespace
Messaging Namespace
Metadata Namespace
PlaceQuote Namespace
Pref_center Namespace
Process Namespace
QuickAction Namespace
Reports Namespace
RevSalesTrxn Namespace
RichMessaging Namespace
Salesforce_Backup Namespace
Schema Namespace
Search Namespace
Sfc Namespace
Sfdc_Checkout Namespace
Sfdc_Enablement Namespace
sfdc_surveys Namespace
Site Namespace
Slack Namespace
Support Namespace
System Namespace
TerritoryMgmt Namespace
TxnSecurity Namespace
UserProvisioning Namespace
VisualEditor Namespace
Wave Namespace
Appendices
PDF

FormulaEval Namespace

The FormulaEval namespace provides classes and methods to evaluate dynamic formulas for SObjects and Apex objects. Use the methods to avoid unnecessary DML statements to recalculate formula field values or evaluate dynamic formula expressions.

When using a formula against an SObject or Apex object as the context object, the class methods or properties referenced by the formula must be global.

Account myAcc = new Account(Name='123');
       FormulaEval.FormulaInstance ff = Formula.builder()
           .withType(Schema.Account.class)
           .withReturnType(FormulaEval.FormulaReturnType.STRING)
           .withFormula('name & " (" & website & ")"')
           .build();
 
//Use the list of field names returned by the getReferenced method to generate dynamic soql
       String fieldNameList = String.join(ff.getReferencedFields(),',');
       String queryStr = 'select ' + fieldNameList + ' from Account LIMIT 1'; //select name, website from Account
       Account s = Database.query(queryStr);
       system.debug(ff.evaluate(s));

The following are the classes and enums in the FormulaEval namespace.