Instance Method インスタンスメソッド

valueForKeyPath:

Returns the value for the derived property identified by a given key path.

Declaration 宣言 

- (id)valueForKeyPath:(NSString *)keyPath;

Parameters パラメータ

keyPath

A key path of the form relationship.property (with one or more relationships); for example “department.name” or “department.manager.lastName”.

Return Value 戻り値

The value for the derived property identified by keyPath.

Discussion 解説

The default implementation gets the destination object for each relationship using valueForKey: and returns the result of a valueForKey: message to the final object.

See Also 参照

Getting Values 値を取得する

- valueForKey:
Returns the value for the property identified by a given key.
- dictionaryWithValuesForKeys:
Returns a dictionary containing the property values identified by each of the keys in a given array.
- valueForUndefinedKey:
Invoked by valueForKey: when it finds no property corresponding to a given key.
- mutableArrayValueForKey:
Returns a mutable array proxy that provides read-write access to an ordered to-many relationship specified by a given key.
- mutableArrayValueForKeyPath:
Returns a mutable array that provides read-write access to the ordered to-many relationship specified by a given key path.
- mutableSetValueForKey:
Returns a mutable set proxy that provides read-write access to the unordered to-many relationship specified by a given key.
- mutableSetValueForKeyPath:
Returns a mutable set that provides read-write access to the unordered to-many relationship specified by a given key path.
- mutableOrderedSetValueForKey:
Returns a mutable ordered set that provides read-write access to the uniquing ordered to-many relationship specified by a given key.
- mutableOrderedSetValueForKeyPath:
Returns a mutable ordered set that provides read-write access to the uniquing ordered to-many relationship specified by a given key path.

Related Documentation 関連文書

- setValue:forKeyPath:
Sets the value for the property identified by a given key path to a given value.