ModelDBImpl class

An implementation of ModelDB based on model class annotations.

The two constructors will scan loaded dart libraries for classes with a Kind annotation.

An example on how to write a model class is: @Kind class Person extends db.Model { @StringProperty String name;

  @IntProperty
  int age;

  @DateTimeProperty
  DateTime dateOfBirth;
}

These classes must either extend Model or ExpandoModel. Furthermore they must have an empty default constructor which can be used to construct model objects when doing lookups/queries from datastore.

Implemented types

ModelDB

Constructors

ModelDBImpl(): Initializes a new ModelDB from all libraries.
ModelDBImpl.fromLibrary(Symbol librarySymbol): Initializes a new ModelDB from all libraries.

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

fieldNameToPropertyName(String kind, String fieldName) → String?: Returns the name of the property corresponding to the kind kind and fieldName.
override
fromDatastoreEntity<T extends Model>(Entity? entity) → T?: Converts a ds.Entity to a Model instance.
override
fromDatastoreKey(Key datastoreKey) → Key: Converts a ds.Key to a Key. The key returned will have the correct id type which is either Key<String> or Key<int>.
override
kindName(Type type) → String: Returns the string representation of the kind of model class type.
override
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toDatastoreEntity(Model model) → Entity: Converts a Model instance to a ds.Entity.
override
toDatastoreKey(Key dbKey) → Key: Converts a Key to a ds.Key.
override
toDatastoreValue(String kind, String fieldName, Object? value, {bool forComparison = false}) → Object?: Converts value according to the Property named name in type.
override
toString() → String: A string representation of this object.
inherited

Operators

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

Static Methods

hasDefaultConstructor(ClassMirror classMirror) → bool: Returns true if the specified classMirror has a default (unnamed) constructor that accepts an empty arguments list.