Operators and Functions

DomEL provides the following operators, listed in order of precedence. Operators higher in this list are evaluated before operators lower in the list:

Operator

Syntax

Description

multiply, divide

i * j / k

Arithmetic operators for numeric types only.

percent

i % j

Calculates i as a percent of j; numeric types only.

add, subtract

i + j - k

Arithmetic operators for numeric types only.

equal

i == j

Comparison operators for string, numeric, and date types.

not equal

i != j

less than

i < j

Comparison operators for numeric and date types only.

less than or equal

i <= j

greater than

i > j

greater than or equal

i >= j

IN set

i IN ('apples','oranges')

Sets can be of any type.

IN range

i IN (j:k)

Ranges must be numeric or date types.

NOT

NOT( i )

Boolean operators. Parentheses are required for NOT.

AND

i AND j AND k

OR

i OR j OR k

parentheses

()

Used for grouping.

DomEL also defines the following operations as functions.

Function

Syntax

Description

startsWith

startsWith(i, 'prefix')

Comparison operators for strings.

endsWith

endsWith(j, 'suffix')

contains

contains(k, 'substring')

concat

concat(i, ' and ', j, ...)

Returns the string of all parameters concatenated.

Additional functions are supported in Ad Hoc views.