mirror of
https://github.com/lxsang/Diya-API.git
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49 lines
1.1 KiB
Smalltalk
49 lines
1.1 KiB
Smalltalk
Class {
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#name : #DiyaSingleton,
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#superclass : #DiyaBaseObject,
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#classVars : [
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'singletons'
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],
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#category : #'Diya-Core'
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}
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{ #category : #'instance creation' }
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DiyaSingleton class >> cleanUpInstance: singleton [
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"do nothing for now"
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]
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{ #category : #'class initialization' }
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DiyaSingleton class >> initialize [
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singletons := Dictionary new.
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]
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{ #category : #'instance creation' }
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DiyaSingleton class >> new [
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^ DiyaCoreAPIError signal: 'Use #uniqueInstance'
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]
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{ #category : #'instance creation' }
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DiyaSingleton class >> reset [
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|singleton key|
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key := self class.
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singleton := singletons at: key ifAbsent: [ ^ self ].
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self cleanUpInstance: singleton.
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singletons removeKey: key
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]
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{ #category : #'instance creation' }
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DiyaSingleton class >> resetAll [
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self allSubclasses do:[:e| e reset]
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]
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{ #category : #'instance creation' }
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DiyaSingleton class >> uniqueInstance [
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^singletons at: self class ifAbsentPut: [ super new ].
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]
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{ #category : #initialization }
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DiyaSingleton >> initialize [
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super initialize.
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self stdlog: 'Initialise unique instance of ', self className.
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]
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