| Name | Description | Type | Package | Framework |
| Operator | Common supertype for operators that operate on either one or two operands. | Class | org.springframework.expression.spel.ast | Spring MVC |
| Operator .DescriptorComparison | A descriptor comparison encapsulates the result of comparing descriptor for two operands anddescribes at what level they are compatible. | Class | org.springframework.expression.spel.ast.Operator | Spring MVC |
| OperatorBetween | Represents the between operator. | Class | org.springframework.expression.spel.ast | Spring MVC |
| OperatorInstanceof | The operator 'instanceof' checks if an object is of the class specified in the righthand operand, in the same way that instanceof does in Java. | Class | org.springframework.expression.spel.ast | Spring MVC |
| OperatorMatches | The first is a String and the second is a Java regex. | Class | org.springframework.expression.spel.ast | Spring MVC |
| OperatorNot | Represents a NOT operation. | Class | org.springframework.expression.spel.ast | Spring MVC |
| OperatorPower | Class | org.springframework.expression.spel.ast | Spring MVC | |