Expressions — Examples

An expression can be as simple as a single literal constant. See Constants in Expressions for more information.

"Good Evening"
142
true
20050705
0x143F871A

An expression can reference a single property, identifying the page on which it is found. In the context of an activity, an expression can reference a parameter or local variable. See Property references in expressions for more information.

.Price
param.InterestRate
MortgageLoan.Application.ZIPCode
primary.pyLabel

You can identify aggregate properties or parts of aggregate properties. (The property mode of the target must match the result of the expression.) See How to reference parts of aggregate properties.

MortgageLoan.Application.Address(4)
Globe.Division(7).Unit("West")
Invoices.pyOrders(2).pyItems("Manuals").pyItemNames

You can use most Java operators for arithmetic, string operations, comparisons, and conditions. Use parentheses to control the order of evaluation. See Operators in expressions for more about each operator and precedence.

.Price * (1+(.Tax/100)) + ShipInfoPage.ShippingCost
.pyEffortActual >= .pyEffortForecast
3.14159*.radius *.radius

Your expressions can call built-in functions, functions in standard libraries, and custom functions. See Functions in expressions.

@SUM(.SubComponents().Price)
@Pega-RULES:MapTo.Function(argument1, argument2)

Expressions can incorporate all the elements described in this topic together:

@SUM(.SubComponents(38+.Offset).Price)