Expression class abstract

Defines a business filtering expression

Filtering expressions can be composed and aggregated to perform a more complex expression.

Implementers
Available extensions

Constructors

Expression()
const
Expression.and(Expression left, Expression right)
Creates an expression that is true when left and right are true.
factory
Expression.equal(String fieldPath, dynamic value)
Creates an expression that filters a field for a value.
factory
Expression.greaterOrEqualThan(String fieldPath, dynamic value)
Creates an expression that filters a field for a value that is greater or equal to the given value.
factory
Expression.greaterThan(String fieldPath, dynamic value)
Creates an expression that filters a field for a value that is greater than the given value.
factory
Expression.inValues(String fieldPath, List values)
Creates an expression that filters a field for a set of possible values.
factory
Expression.lessOrEqualThan(String fieldPath, dynamic value)
Creates an expression that filters a field for a value that is lesser or equal to the given value.
factory
Expression.lessThan(String fieldPath, dynamic value)
Creates an expression that filters a field for a value that is less than the given value.
factory
Expression.like(String fieldPath, dynamic value)
Creates an expression that filters a field for a pattern match of a value.
factory
Expression.not(Expression expression)
Creates an expression that is the boolean opposite of expression.
factory
Expression.notEqual(String fieldPath, dynamic value)
Creates an expression that filters a field for a value different from the given value.
factory
Expression.or(Expression left, Expression right)
Creates an expression that is true when left or right are true.
factory

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited