Apex Reference Guide

Apex Reference Guide
Release Notes
Apex DML Operations
ApexPages Namespace
AppLauncher Namespace
Approval Namespace
Auth Namespace
Cache Namespace
Canvas Namespace
ChatterAnswers Namespace
CommerceBuyGrp Namespace
CommerceExtension Namespace
CommerceOrders Namespace
CommercePayments Namespace
CommerceTax Namespace
ComplianceMgmt Namespace
Compression Namespace
ConnectApi Namespace
Context Namespace
Database Namespace
Datacloud Namespace
DataRetrieval Namespace
DataSource Namespace
DataWeave Namespace
Dom Namespace
embeddedai Namespace
EventBus Namespace
ExternalService Namespace
Flow Namespace
Flowtesting Namespace
flowuiruntime Namespace
FormulaEval Namespace
FormulaBuilder Class
FormulaGlobal Enum
FormulaInstance Class
FormulaReturnType Enum
fsccashflow Namespace
Functions Namespace
ise_bots_apex Namespace
IssueCreditMemo Namespace
ind_mfg_sample_mgmt_apex Namespace
industriesNlpSvc
IndustriesDigitalLending Namespace
Invocable Namespace
InvoiceWriteOff Namespace
IsvPartners Namespace
KbManagement Namespace
LxScheduler Namespace
Messaging Namespace
Metadata Namespace
PlaceQuote Namespace
Pref_center Namespace
Process Namespace
QuickAction Namespace
renew_assets_summary Namespace
Reports Namespace
RevSignaling Namespace
RevSalesTrxn Namespace
RichMessaging Namespace
RulesAppln Namespace
runtime_industries_cpq Namespace
runtime_industries_insurance Namespace
Schema Namespace
Search Namespace
setup_flow_performance Namespace
Sfc Namespace
Sfdc_Checkout Namespace
Sfdc_Enablement Namespace
sfdc_surveys Namespace
sfsqlquery 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.

1Account myAcc = new Account(Name='123');
2       FormulaEval.FormulaInstance ff = Formula.builder()
3           .withType(Schema.Account.class)
4           .withReturnType(FormulaEval.FormulaReturnType.STRING)
5           .withFormula('name & " (" & website & ")"')
6           .build();
7 
8//Use the list of field names returned by the getReferenced method to generate dynamic soql
9       String fieldNameList = String.join(ff.getReferencedFields(),',');
10       String queryStr = 'select ' + fieldNameList + ' from Account LIMIT 1'; //select name, website from Account
11       Account s = Database.query(queryStr);
12       system.debug(ff.evaluate(s));
13

For usage notes, see Formula Evaluation in Apex.

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