Key is a wrapper for the common concept of a Key Value Pair, or a KVP as will be referenced many times in the Fondant library. It is designed around managing every change to a Key and the associated Value, where just accessing the collection of revisions and interactions manually, or handling each one individual by subscribing to the actions. When a change is made to the data, the change is understood -- the old version is cached, and the new version persists.

• View the source for Key at: src/actionables/Key.js.
• View the test file for Key at: tests/Actionables/testKey.js.
• View the NPM package at: @sugarcoated/fondant-key.

API Reference

Instance Methods

new Key(name, value, [date])

Creates a new Key instance.

• name is expected as a String, used to identify the Key.

• value is expected as an Object.

• date is an optional parameter, expected as a Date, identifying a creation date if the Key is not new.

  new Key('myKey')

Upon construction, you will have access to the following properties:

• name is the name of the Key ("Key" from "Key Value Pair").
• value is the value of the Key ("Value" from the "Key Value Pair").

.age()

Evaluate the current age of the Key in seconds.

myKey.age() // 23

.revise()

Save a brand new revision of the Key. Mostly called within the Key methods, but is useful when having to restructure Key instances, or when modifying values via the constructor's actual properties -- not via setters, because those call this method anyway.

myKey.revise()

.pair()

Pairs the Key into a conceptually traditional KVP with the format of a single-dimension Array.<String, Object>.

myKey.pair() // ['myKey', {context}]

Returns the derived KVP as an Array.<String, Object> that can be easily used with Maps, or other Collection types.

Static Methods

• Nothing to see here.

Events

• Renamed is called whenever the Key instance is given a new name via the .name custom setter. Changing the .keyName property will not fire this action.
• Revalued is called whenever the Key instance is given a new value via the .value custom setter. Changing the .keyValue property will not fired this action.
• Revised is called whenever a new revision of the Key instance is saved. This occurs whenever a the Key is renamed or revalued (however Revised fires afterwards).
• Cloned is called whenever the Key instance is directly copied via the cloning method.
• Paired is called whenever the Key instance is directly paired via the pairing method.