Migration class abstract
Represents a single migration step from one schema version to another.
You will create concrete implementations of this class for each schema change in your application.
- Implementers
Constructors
Properties
- fromVersion → int
-
The schema version this migration starts from.
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- toVersion → int
-
The schema version this migration migrates to.
no setter
Methods
-
migrate(
Map< String, dynamic> oldData) → Map<String, dynamic> - Executes the migration logic on a single raw data object. The map represents a single entity serialized to a map.
-
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