What are creational design patternsGolang getinstanceTypeScript prototypePython PrototypeGolang command patternC# prototype design pattern examplePrototype Design Pattern inGolang - Morioh
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The Prototype pattern instructs the copying objects themselves to make copies. ... The articles on the use of design patterns in the Golang language. ElianHarber 1622090422 PrototypeDesignPatterninGolang Hifriends!Withyou, Alex andIcontinueourseriesofarticlesontheuseofdesignpatternsinthe Golang language. Itisinterestingtoreceivefeedbackfromyou,tounderstandhowapplicablethisareaofknowledgeisintheworldofthe Golang language.Wehavealreadylookedatpatterns: SimpleFactory, Singleton,and Strategy.TodayIwanttoconsideranotherdesignpattern— Prototype. Whatisitneededfor? Itisacreatingdesignpatternthatallowsobjectstobecopiedwithoutgoingintothedetailsoftheirimplementation. Whatproblemdoesitsolve? Imagineyouhaveanobjectthatneedstobecopied.Howtodoit?Createanemptyobjectofthesameclass,thencopythevaluesofallfieldsfromtheoldobjecttothenewonebyone.Fine,butthereisanuance!Noteveryobjectcanbecopiedinthisway,becausepartofitsstatecanbeprivate,whichmeansitisinaccessibletotherestoftheprogramcode. Thereisanotherproblemaswell.Thecopyingcodewillbecomedependentontheclassesofthecopiedobjects.Afterall,inordertoiterateoverallthefieldsofanobject,youneedtobindtoitsclass.Becauseofthis,youwon’tbeabletocopyobjectsknowingonlytheirinterfacesandnotspecificclasses. What’sthesolution? The Prototype patterninstructsthecopyingobjectsthemselvestomakecopies.Itintroducesacommoninterfaceforallobjectsthatsupportcloning.Thisallowsobjectstobecopiedwithoutbeingboundtotheirspecificclasses.Typicallysuchaninterfacehasonlyoneclonemethod. Theimplementationofthismethodindifferentclassesisverysimilar.Themethodcreatesanewobjectofthecurrentclassandcopiesthevaluesofallfieldsofitsownobjectintoit.Evenprivatefieldscanbecopiedthiswaysincemostprogramminglanguagesallowaccesstoprivatefieldsofanyobjectofthecurrentclass.Theobjectbeingcopiediscalledtheprototype,hencethenameofthepattern.Whenprogramobjectscontainhundredsoffieldsandthousandsofpossibleconfigurations,prototypescanserveasanalternativetosubclassing.Theprototypepatternshouldcopyobjectsofanycomplexitywithoutbindingtotheirspecificclasses. Allprototypeclassesshareacommoninterface.Therefore,youcancopyobjectsregardlessoftheirspecifictypesandalwaysbesuretogetanexactcopy.Cloningisdonebytheprototypeobjectitself,whichallowsittocopythevaluesofallfields,evenprivateones.Inthiscase,allpossibleprototypesareprocuredandconfiguredatthestageofprograminitialization.Then,whentheprogramneedsanewobject,itcreatesacopyfromthepreparedprototype. #go#golang#design-patterns#php WhatisGEEK BuddhaCommunity JosephMurray 1623924649 OverviewOfPrototypeDesingPattern WhatisPrototypeDesignpattern? prototypesdesignpatternallowsyoutocreateobjectsby cloning anexistingobjectinsteadofcreatinganewobjectfromscratch.Thispatternisusedwhentheprocessof objectcreationiscostly.whencloning,thenewlycopiedobjectcontainsthesamecharacteristicsasitssourceobject.Aftercloning,wecanchangethevaluesofthenewobject’spropertiesasrequired.Thispatterncomesundera **creational **pattern. Foreasierunderstanding,Assumethatadatabaseoperationshouldbedoneinordertocreateanobject.Thisdatabasecallisbothtime-consumingandcostly.weneedtocreatemultipleobjects.Asaresult,whenwecreateanewobject,eachtimeadatabasecallwilloccur,thiswillgiveaperformanceflop,right?Asaresult,initially,wecreateoneobjectandcloneiteachtimewhenwerequiredanewobject.Thiswillcutdownthedatabasecallsforeachobjectcreation. #java-design-pattern#cloning#prototype-design-pattern#java#prototype-pattern#overviewofprototypedesingpattern SamantaMoore 1623835440 BuilderDesignPattern WhatisBuilderDesignPattern?Whyweshouldcareaboutit? Startingfrom **CreationalDesignPattern, **so wikipedia says“creationaldesignpatternaredesignpatternthatdealswithobjectcreationmechanism,tryingtocreateobjectsinmannerthatissuitabletothesituation”. Thebasicformofobjectcreationscouldresultindesignproblemsandresultincomplexdesignproblems,sotoovercomethisproblemCreationalDesignPatternsomehowallowsyoutocreatetheobject. Builder isoneofthe** CreationalDesignPattern**. WhentoconsidertheBuilderDesignPattern? BuilderisusefulwhenyouneedtodolotofthingstobuildanObject.Let’simagineDOM(DocumentObjectModel),soifweneedtocreatetheDOM,Wecouldhavetodolotofthings,appendingplentyofnodesandattachingattributestothem.WecouldalsoimagineaboutthehugeXMLObjectcreationwherewewillhavetodolotofworktocreatetheObject.AFactoryisusedbasicallywhenwecouldcreatetheentireobjectinoneshot. As **JoshuaBloch(**HeledtheDesignofthemanylibraryJavaCollectionsFrameworkandmanymore)–“BuilderPatternisgoodchoicewhendesigningtheclasswhoseconstructororstaticfactorieswouldhavemorethanhandfulofparameters” #java#builder#builderpattern#creationaldesignpattern#designpattern#factorypattern#javadesignpattern JosephMurray 1624442940 PrototypeDesignPattern - Java Prototypedesignpatterntutorial DefinitionofPrototypepattern The prototypepattern isacreationaldesignpatterninsoftwaredevelopment.Itisusedwhenthetypeofobjectstocreateisdeterminedbyaprototypicalinstance,whichisclonedtoproducenewobjects. WheretousethePrototypepattern Ifthecostforcreatinganewobjectisexpensiveandcostsresources. #java#design-patterns#code#tutorial#prototype-design-pattern#designpattern DataITSolutions 1609840501 LandscapesWebsiteDesign|NatureLandscapesWebsiteDesigner Mostlandscapersthinkoftheirwebsiteasanonlinebrochure.Inrealityofconsumershaveadmittedtojudgingacompany’scredibilitybasedontheirwebdesign,makingyourwebsiteavirtualsalesrepcapableofgeneratingmassiveamountsofleadsandsales.Ifyourwebsiteisn’tactivelyincreasingleadsandnewlandscapingcontracts,itmaybetimeforaredesign. DataITSolutionsspecializesinlandscapewebsitedesigningthatarenotonlybeautifulbutalsorankwellinsearchengineresultsandconvertyourvisitorsintocustomers.We’vespecializedinthelandscapingindustryforover10years,andwelookatyourbusinessfromanowner’sperspective. WhyuseourLandscapesforyourlandscapedesign? Superiorexperience Friendlypersonalservice Choiceofdesignlayout Budgetsensitivedesigns Impartialproductchoiceandadvice Plantingandlightingdesigns Wanttotalkaboutyourwebsite? Ifyouareagardenerorhaveagardeningcompanypleasedonothesitatetocontactusforaquote. Needhelpwithyourwebsite?Getintouch #naturelandscapeswebsitedesign#landscapeswebsitedesign#websitedesign#websitedesigning#websitedesigner#designer SavannahDeckow 1624549500 Compositedesignpattern — Java CompositePatterntutorial DefinitionofCompositepattern Insoftwareengineering,the compositepattern isapartitioningdesignpattern.Thecompositepatterndescribesagroupofobjectsthataretreatedthesamewayasasingleinstanceofthesametypeofobject.Theintentofacompositeisto“compose”objectsintotreestructurestorepresentpart-wholehierarchies.Implementingthecompositepatternletsclientstreatindividualobjectsandcompositionsuniformly. WheretousetheCompositepattern? UMLexample ImplementationoftheCompositepattern … #design-patterns#java#code#composite-design-pattern#tutorial#compositedesignpattern — java
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