ForeignKey class final

A database foreign key described with ordered physical column names.

Source and target columns must have matching arity and compatible storage. Creating this value does not execute DDL or infer an index.

Constructors

ForeignKey(List<String> columns, String target, List<String> targetColumns, {String onDelete = 'RESTRICT'})

Describes a foreign key; the default deletion action is RESTRICT.

const

Properties

columns → List<String>

Source columns in key order.

final

hashCode → int

The hash code for this object.

no setter, inherited

onDelete → String

SQL referential action, validated for the target database.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

target → String

Physical name of the referenced table.

final

targetColumns → List<String>

Target key columns in the corresponding source-column order.

final

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