Selection<T> class abstract

A typed result description decoded when its containing query executes.

SQL expressions are scalar selections. Record composition and map combine decoded values into application results without evaluating Dart code in SQL. Use this type for reusable result helpers. Named SQL output fields belong to a flat Projection, rather than to arbitrary Dart result properties.

Implementers

• Expr
• Projection

Constructors

Selection()

Base constructor for typed projections and their Dart result mappings.

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

map<R>(R mapper(T)) → Selection<R>

Maps each decoded value in Dart, preserving the source SQL projection.

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